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authorDave Wallace <dwallacelf@gmail.com>2017-10-24 04:12:18 -0400
committerKeith Burns <alagalah@gmail.com>2017-10-24 18:25:31 +0000
commit5c7cf1cc5358d137160be1619981e7eea9a7402f (patch)
treee981f6fc831e9c4e240e765d506ac8d58be43123 /extras/vcl-ldpreload/src/libvcl-ldpreload
parent4c151b5fa13312639b0a5ef0d0efb1866bf4ed5e (diff)
VCL-LDPRELOAD: statically link vppcom into libvcl-ldpreload.so
- Move VCL & VCL-LDPRELOAD source into src/vcl - Statically link vppcom into libvcl-ldpreload.so Change-Id: I778300b37e8b06640d9dbc01caf297edf7a6edb7 Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Diffstat (limited to 'extras/vcl-ldpreload/src/libvcl-ldpreload')
-rw-r--r--extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.c3331
-rw-r--r--extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.h204
-rw-r--r--extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_glibc_socket.h351
-rw-r--r--extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.c3447
-rw-r--r--extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.h470
-rw-r--r--extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.c906
-rw-r--r--extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.h235
7 files changed, 0 insertions, 8944 deletions
diff --git a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.c b/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.c
deleted file mode 100644
index 6ddb245b421..00000000000
--- a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.c
+++ /dev/null
@@ -1,3331 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <unistd.h>
-#include <stdio.h>
-#include <signal.h>
-#include <dlfcn.h>
-#include <pthread.h>
-#include <time.h>
-#include <stdarg.h>
-#include <sys/resource.h>
-
-#include <libvcl-ldpreload/vcom_socket_wrapper.h>
-#include <libvcl-ldpreload/vcom.h>
-#include <sys/time.h>
-
-#include <uri/vppcom.h>
-#include <libvcl-ldpreload/vcom_socket.h>
-
-/* GCC have printf type attribute check. */
-#ifdef HAVE_FUNCTION_ATTRIBUTE_FORMAT
-#define PRINTF_ATTRIBUTE(a,b) \
- __attribute__ ((__format__ (__printf__, a, b)))
-#else
-#define PRINTF_ATTRIBUTE(a,b)
-#endif /* HAVE_FUNCTION_ATTRIBUTE_FORMAT */
-
-#define HAVE_CONSTRUCTOR_ATTRIBUTE
-#ifdef HAVE_CONSTRUCTOR_ATTRIBUTE
-#define CONSTRUCTOR_ATTRIBUTE \
- __attribute__ ((constructor))
-#else
-#define CONSTRUCTOR_ATTRIBUTE
-#endif /* HAVE_CONSTRUCTOR_ATTRIBUTE */
-
-#define HAVE_DESTRUCTOR_ATTRIBUTE
-#ifdef HAVE_DESTRUCTOR_ATTRIBUTE
-#define DESTRUCTOR_ATTRIBUTE \
- __attribute__ ((destructor))
-#else
-#define DESTRUCTOR_ATTRIBUTE
-#endif
-
-#define HAVE_ADDRESS_SANITIZER_ATTRIBUTE
-#ifdef HAVE_ADDRESS_SANITIZER_ATTRIBUTE
-#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE \
- __attribute__((no_sanitize_address))
-#else
-#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE
-#endif
-
-#define VCOM_SOCKET_FD_MAX 0x10000
-
-static char vcom_app_name[MAX_VCOM_APP_NAME];
-
-/*
- * RETURN: 0 on success or -1 on error.
- * */
-int
-vcom_set_app_name (char *__app_name)
-{
- return snprintf (vcom_app_name, MAX_VCOM_APP_NAME, "vcom-%s-%d",
- __app_name, getpid ()) < 0 ? -1 : 0;
-}
-
-static char *
-vcom_get_app_name ()
-{
- if (vcom_app_name[0] == '\0')
- {
- snprintf (vcom_app_name, MAX_VCOM_APP_NAME, "vcom-app-%d", getpid ());
- }
- return vcom_app_name;
-}
-
-/*
- * 1 if init, 0 otherwise
- */
-static int is_vcom_init;
-
-/*
- * TBD: Make it thread safe
- */
-
-/*
- * constructor function called before main is called
- * RETURN: 0 on success -1 on failure
- * */
-static inline int
-vcom_init ()
-{
- pid_t pid = getpid ();
-
- if (!is_vcom_init)
- {
- if (vppcom_app_create (vcom_get_app_name ()) != 0)
- {
- printf ("\n[%d] vcom_init...failed!\n", pid);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] vcom_init: vppcom_app_create failed!\n", pid);
- return -1;
- }
- if (vcom_socket_main_init () != 0)
- {
- printf ("\n[%d] vcom_init...failed!\n", pid);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] vcom_init: vcom_socket_main_init failed!\n", pid);
- return -1;
- }
-
- is_vcom_init = 1;
- printf ("\n[%d] vcom_init...done!\n", pid);
- }
- return 0;
-}
-
-static inline void
-vcom_destroy (void)
-{
- pid_t pid = getpid ();
-
- if (is_vcom_init)
- {
- vcom_socket_main_destroy ();
- vppcom_app_destroy ();
- is_vcom_init = 0;
- fprintf (stderr, "\n[%d] vcom_destroy...done!\n", pid);
- }
-}
-
-static inline int
-is_vcom_socket_fd (int fd)
-{
- return vcom_socket_is_vcom_fd (fd);
-}
-
-static inline int
-is_vcom_epfd (int epfd)
-{
- return vcom_socket_is_vcom_epfd (epfd);
-}
-
-
-/*
- *
- * Generic glibc fd api
- *
- */
-
-/* Close the file descriptor FD.
-
- This function is a cancellation point and therefore
- not marked with __THROW. */
-/*
- * PRE: is_vcom_socket_fd(__fd) == 1
- * RETURN: 0 on success and -1 for errors.
- * */
-int
-vcom_close (int __fd)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- if (vcom_socket_close (__fd) != 0)
- {
- return -1;
- }
-
- return 0;
-}
-
-/*
- * RETURN: 0 on success, or -1 on error
- */
-int
-close (int __fd)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd) || is_vcom_epfd (__fd))
- {
- if (VCOM_DEBUG > 0)
- vcom_socket_main_show ();
- rv = vcom_close (__fd);
- if (VCOM_DEBUG > 0)
- fprintf (stderr, "[%d] close: " "'%04d'='%04d'\n", pid, rv, __fd);
- if (VCOM_DEBUG > 0)
- vcom_socket_main_show ();
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
- return libc_close (__fd);
-}
-
-/* Read NBYTES into BUF from FD. Return the
- number read, -1 for errors or 0 for EOF.
-
- This function is a cancellation point and therefore
- not marked with __THROW. */
-ssize_t
-vcom_read (int __fd, void *__buf, size_t __nbytes)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_read (__fd, __buf, __nbytes);
-}
-
-ssize_t
-read (int __fd, void *__buf, size_t __nbytes)
-{
- ssize_t size = 0;
- pid_t pid = getpid ();
- pthread_t tid = pthread_self ();
-
- if (is_vcom_socket_fd (__fd))
- {
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d][%lu (0x%lx)] read:1 "
- "'%04d'='%04d', '%p', '%04d'\n",
- pid, (unsigned long) tid, (unsigned long) tid,
- (int) size, __fd, __buf, (int) __nbytes);
- size = vcom_read (__fd, __buf, __nbytes);
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d][%lu (0x%lx)] read:2 "
- "'%04d'='%04d', '%p', '%04d'\n",
- pid, (unsigned long) tid, (unsigned long) tid,
- (int) size, __fd, __buf, (int) __nbytes);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_read (__fd, __buf, __nbytes);
-}
-
-ssize_t
-vcom_readv (int __fd, const struct iovec * __iov, int __iovcnt)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_readv (__fd, __iov, __iovcnt);
-}
-
-ssize_t
-readv (int __fd, const struct iovec * __iov, int __iovcnt)
-{
- ssize_t size = 0;
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_readv (__fd, __iov, __iovcnt);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- else
- return libc_readv (__fd, __iov, __iovcnt);
-}
-
-/* Write N bytes of BUF to FD. Return the number written, or -1.
-
- This function is a cancellation point and therefore
- not marked with __THROW. */
-ssize_t
-vcom_write (int __fd, const void *__buf, size_t __n)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_write (__fd, (void *) __buf, __n);
-}
-
-ssize_t
-write (int __fd, const void *__buf, size_t __n)
-{
- ssize_t size = 0;
- pid_t pid = getpid ();
- pthread_t tid = pthread_self ();
-
- if (is_vcom_socket_fd (__fd))
- {
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d][%lu (0x%lx)] write:1 "
- "'%04d'='%04d', '%p', '%04d'\n",
- pid, (unsigned long) tid, (unsigned long) tid,
- (int) size, __fd, __buf, (int) __n);
- size = vcom_write (__fd, __buf, __n);
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d][%lu (0x%lx)] write:2 "
- "'%04d'='%04d', '%p', '%04d'\n",
- pid, (unsigned long) tid, (unsigned long) tid,
- (int) size, __fd, __buf, (int) __n);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_write (__fd, __buf, __n);
-}
-
-ssize_t
-vcom_writev (int __fd, const struct iovec * __iov, int __iovcnt)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_writev (__fd, __iov, __iovcnt);
-}
-
-ssize_t
-writev (int __fd, const struct iovec * __iov, int __iovcnt)
-{
- ssize_t size = 0;
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_writev (__fd, __iov, __iovcnt);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- else
- return libc_writev (__fd, __iov, __iovcnt);
-}
-
-/* Do the file control operation described by CMD on FD.
- The remaining arguments are interpreted depending on CMD.
-
- This function is a cancellation point and therefore
- not marked with __THROW. */
-int
-vcom_fcntl_va (int __fd, int __cmd, va_list __ap)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_fcntl_va (__fd, __cmd, __ap);
-}
-
-int
-vcom_fcntl (int __fd, int __cmd, ...)
-{
- int rv = -1;
- va_list ap;
-
- if (is_vcom_socket_fd (__fd))
- {
- va_start (ap, __cmd);
- rv = vcom_fcntl_va (__fd, __cmd, ap);
- va_end (ap);
- }
- return rv;
-}
-
-int
-fcntl (int __fd, int __cmd, ...)
-{
- int rv;
- va_list ap;
- pid_t pid = getpid ();
-
- va_start (ap, __cmd);
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_fcntl_va (__fd, __cmd, ap);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] fcntl: "
- "'%04d'='%04d', '%04d'\n", pid, rv, __fd, __cmd);
- if (rv < 0)
- {
- errno = -rv;
- rv = -1;
- }
- goto out;
- }
- rv = libc_vfcntl (__fd, __cmd, ap);
-
-out:
- va_end (ap);
- return rv;
-}
-
-int
-vcom_ioctl_va (int __fd, unsigned long int __cmd, va_list __ap)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_ioctl_va (__fd, __cmd, __ap);
-}
-
-int
-vcom_ioctl (int __fd, unsigned long int __cmd, ...)
-{
- int rv = -1;
- va_list ap;
-
- if (is_vcom_socket_fd (__fd))
- {
- va_start (ap, __cmd);
- rv = vcom_ioctl_va (__fd, __cmd, ap);
- va_end (ap);
- }
- return rv;
-}
-
-int
-ioctl (int __fd, unsigned long int __cmd, ...)
-{
- int rv;
- va_list ap;
- pid_t pid = getpid ();
-
- va_start (ap, __cmd);
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_ioctl_va (__fd, __cmd, ap);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] ioctl: "
- "'%04d'='%04d', '%04ld'\n", pid, rv, __fd, __cmd);
- if (rv < 0)
- {
- errno = -rv;
- rv = -1;
- }
- goto out;
- }
- rv = libc_vioctl (__fd, __cmd, ap);
-
-out:
- va_end (ap);
- return rv;
-}
-
-/*
- * Check the first NFDS descriptors each in READFDS (if not NULL) for
- * read readiness, in WRITEFDS (if not NULL) for write readiness,
- * and in EXCEPTFDS (if not NULL) for exceptional conditions.
- * If TIMEOUT is not NULL, time out after waiting the interval
- * specified therein. Returns the number of ready descriptors,
- * or -1 for errors.
- *
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-
-/*
- * clear all vcom FDs from fd_sets __readfds, __writefds and
- * __exceptfds and update the new nfds
- *
- * new nfds is the highest-numbered file descriptor
- * in any of the three sets, plus 1
- *
- * Return the number of file descriptors contained in the
- * three descriptor sets. ie. the total number of the bits
- * that are set in __readfds, __writefds and __exceptfds
- */
-static inline int
-vcom_fd_clear (int __nfds,
- int *__new_nfds,
- fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds)
-{
- int fd;
- /* invalid max_fd is -1 */
- int max_fd = -1;
- int nfd = 0;
-
-
- /* clear all vcom fd from the sets */
- for (fd = 0; fd < __nfds; fd++)
- {
-
- /* clear vcom fd from set */
- /*
- * F fd set
- */
-#define _(F) \
- if ((F) && FD_ISSET (fd, (F))) \
- { \
- if (is_vcom_socket_fd (fd)) \
- { \
- FD_CLR (fd, (F)); \
- } \
- }
-
-
- _(__readfds);
- _(__writefds);
- _(__exceptfds);
-#undef _
- }
-
- /*
- * compute nfd and __new_nfds
- */
- for (fd = 0; fd < __nfds; fd++)
- {
-
- /*
- * F fd set
- */
-#define _(F) \
- if ((F) && FD_ISSET (fd, (F))) \
- { \
- if (fd > max_fd) \
- { \
- max_fd = fd; \
- } \
- ++nfd; \
- }
-
-
- _(__readfds);
- _(__writefds);
- _(__exceptfds);
-#undef _
- }
-
- *__new_nfds = max_fd != -1 ? max_fd + 1 : 0;
- return nfd;
-}
-
-/*
- * Return the number of file descriptors contained in the
- * three descriptor sets. ie. the total number of the bits
- * that are set in __readfds, __writefds and __exceptfds
- */
-static inline int
-vcom_fd_set (int __nfds,
- /* dest */
- int *__new_nfds,
- fd_set * __restrict __readfds,
- fd_set * __restrict __writefds, fd_set * __restrict __exceptfds,
- /* src */
- fd_set * __restrict __saved_readfds,
- fd_set * __restrict __saved_writefds,
- fd_set * __restrict __saved_exceptfds)
-{
- int fd;
- /* invalid max_fd is -1 */
- int max_fd = -1;
- int nfd = 0;
-
- for (fd = 0; fd < __nfds; fd++)
- {
- /*
- * F fd set
- * S saved fd set
- */
-#define _(S,F) \
- if ((F) && (S) && FD_ISSET (fd, (S))) \
- { \
- if (is_vcom_socket_fd (fd)) \
- { \
- FD_SET (fd, (F)); \
- } \
- }
-
-
- _(__saved_readfds, __readfds);
- _(__saved_writefds, __writefds);
-#undef _
- }
-
-
- /*
- * compute nfd and __new_nfds
- */
- for (fd = 0; fd < __nfds; fd++)
- {
-
- /*
- * F fd set
- */
-#define _(F) \
- if ((F) && FD_ISSET (fd, (F))) \
- { \
- if (fd > max_fd) \
- { \
- max_fd = fd; \
- } \
- ++nfd; \
- }
-
-
- _(__readfds);
- _(__writefds);
- _(__exceptfds);
-#undef _
- }
-
- *__new_nfds = max_fd != -1 ? max_fd + 1 : 0;
- return nfd;
-}
-
-/*
- * split select sets(src) into
- * vcom sets(dest1) and libc sets(dest2)
- */
-static inline void
-vcom_fd_set_split (
- /* src, select sets */
- int nfds,
- fd_set * __restrict readfds,
- fd_set * __restrict writefds,
- fd_set * __restrict exceptfds,
- /* dest1, vcom sets */
- int *vcom_nfds,
- fd_set * __restrict vcom_readfds,
- fd_set * __restrict vcom_writefds,
- fd_set * __restrict vcom_exceptfds, int *vcom_nfd,
- /* dest2, libc sets */
- int *libc_nfds,
- fd_set * __restrict libc_readfds,
- fd_set * __restrict libc_writefds,
- fd_set * __restrict libc_exceptfds, int *libc_nfd)
-{
- int fd;
-
- /* vcom */
- /* invalid max_fd is -1 */
- int vcom_max_fd = -1;
- int vcom_nfd2 = 0;
-
- /* libc */
- /* invalid max_fd is -1 */
- int libc_max_fd = -1;
- int libc_nfd2 = 0;
-
-
- for (fd = 0; fd < nfds; fd++)
- {
- /*
- * S select fd set
- * V vcom fd set
- * L libc fd set
- */
-#define _(S,V,L) \
- if ((S) && FD_ISSET (fd, (S))) \
- { \
- if (is_vcom_socket_fd (fd)) \
- { \
- if ((V)) \
- { \
- FD_SET(fd, (V)); \
- if (fd > vcom_max_fd) \
- { \
- vcom_max_fd = fd; \
- } \
- ++vcom_nfd2; \
- } \
- } \
- else \
- { \
- if ((L)) \
- { \
- FD_SET(fd, (L)); \
- if (fd > libc_max_fd) \
- { \
- libc_max_fd = fd; \
- } \
- ++libc_nfd2; \
- } \
- } \
- }
-
-
- _(readfds, vcom_readfds, libc_readfds);
- _(writefds, vcom_writefds, libc_writefds);
- _(exceptfds, vcom_exceptfds, libc_exceptfds);
-#undef _
- }
-
- if (vcom_nfds)
- *vcom_nfds = vcom_max_fd != -1 ? vcom_max_fd + 1 : 0;
- if (vcom_nfd)
- *vcom_nfd = vcom_nfd2;
- if (libc_nfds)
- *libc_nfds = libc_max_fd != -1 ? libc_max_fd + 1 : 0;
- if (libc_nfd)
- *libc_nfd = libc_nfd2;
-}
-
-/*
- * merge vcom sets(src1) and libc sets(src2)
- * into select sets(dest)
- */
-static inline void
-vcom_fd_set_merge (
- /* dest, select sets */
- int *nfds,
- fd_set * __restrict readfds,
- fd_set * __restrict writefds,
- fd_set * __restrict exceptfds, int *nfd,
- /* src1, vcom sets */
- int vcom_nfds,
- fd_set * __restrict vcom_readfds,
- fd_set * __restrict vcom_writefds,
- fd_set * __restrict vcom_exceptfds, int vcom_nfd,
- /* src2, libc sets */
- int libc_nfds,
- fd_set * __restrict libc_readfds,
- fd_set * __restrict libc_writefds,
- fd_set * __restrict libc_exceptfds, int libc_nfd)
-{
- int fd;
- /* invalid max_fd is -1 */
- int max_fd = -1;
- int nfd2 = 0;
-
-
- /* FD_BIT_OR
- *
- * dest |= src at current bit index
- * update MAX and NFD of dest fd set
- *
- *
- * FS source fd set
- * FD dest fd set
- * BI bit index
- * MAX current max_fd of dest fd sets
- * NFD current nfd of dest fd sets
- * N nfds of source fd set
- */
-#define FD_BIT_OR(FD,FS,BI, \
- MAX,NFD) \
- if ((FS) && (FD) && FD_ISSET ((BI), (FS))) \
- { \
- FD_SET ((BI), (FD)); \
- if ((BI) > (MAX)) \
- { \
- (MAX) = (BI); \
- } \
- ++(NFD); \
- }
-
-
- /* FD_RWE_SET_OR */
- /*
- * SR,SW,SE source RWE fd sets
- * DR,DW,DE dest RWE fd sets
- * BI bit index
- * NFDS nfds of source fd sets
- * MAX current max_fd of dest fd sets
- * NFD current nfd of dest fd sets
- */
-#define FD_RWE_SETS_OR(DR,DW,DE, \
- SR,SW,SE, \
- BI,NFDS, \
- MAX,NFD) \
- do \
- { \
- for ((BI) = 0; (BI) < (NFDS); (BI)++) \
- { \
- FD_BIT_OR((DR), (SR), (BI), (MAX), (NFD)); \
- FD_BIT_OR((DW), (SW), (BI), (MAX), (NFD)); \
- FD_BIT_OR((DE), (SE), (BI), (MAX), (NFD)); \
- } \
- } \
- while (0);
-
-
- /* source(vcom) to dest(select) rwe fd sets */
- FD_RWE_SETS_OR (readfds, writefds, exceptfds,
- vcom_readfds, vcom_writefds, vcom_exceptfds,
- fd, vcom_nfds, max_fd, nfd2);
-
- /* source(libc) to dest(select) rwe fd sets */
- FD_RWE_SETS_OR (readfds, writefds, exceptfds,
- libc_readfds, libc_writefds, libc_exceptfds,
- fd, libc_nfds, max_fd, nfd2);
-
-#undef FD_RWE_SETS_OR
-#undef FD_BIT_OR
-
- if (nfds)
- *nfds = max_fd != -1 ? max_fd + 1 : 0;
- if (nfd)
- *nfd = nfd2;
-}
-
-/*
- * RETURN 1 if fds is NULL or empty. 0 otherwise
- */
-static inline int
-fd_set_iszero (fd_set * __restrict fds)
-{
- int fd;
-
- /* NULL fds */
- if (!fds)
- return 1;
-
- for (fd = 0; fd < FD_SETSIZE; fd++)
- {
- if (FD_ISSET (fd, fds))
- {
- /* non-empty fds */
- return 0;
- }
- }
- /* empty fds */
- return 1;
-}
-
-
-/*
- * ################
- * kernel time64.h
- * ################
- * */
-typedef long int s64;
-typedef unsigned long int u64;
-
-typedef long long int __s64;
-typedef unsigned long long int __u64;
-
-typedef __s64 time64_t;
-typedef __u64 timeu64_t;
-
-/* Parameters used to convert the timespec values: */
-#define MSEC_PER_SEC 1000L
-#define USEC_PER_MSEC 1000L
-#define NSEC_PER_USEC 1000L
-#define NSEC_PER_MSEC 1000000L
-#define USEC_PER_SEC 1000000L
-#define NSEC_PER_SEC 1000000000L
-#define FSEC_PER_SEC 1000000000000000LL
-
-
-/*
- * ################
- * kernel time.h
- * ################
- * */
-
-
-#define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)
-
-static inline int
-timespec_equal (const struct timespec *a, const struct timespec *b)
-{
- return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec);
-}
-
-/*
- * lhs < rhs: return <0
- * lhs == rhs: return 0
- * lhs > rhs: return >0
- */
-static inline int
-timespec_compare (const struct timespec *lhs, const struct timespec *rhs)
-{
- if (lhs->tv_sec < rhs->tv_sec)
- return -1;
- if (lhs->tv_sec > rhs->tv_sec)
- return 1;
- return lhs->tv_nsec - rhs->tv_nsec;
-}
-
-static inline int
-timeval_compare (const struct timeval *lhs, const struct timeval *rhs)
-{
- if (lhs->tv_sec < rhs->tv_sec)
- return -1;
- if (lhs->tv_sec > rhs->tv_sec)
- return 1;
- return lhs->tv_usec - rhs->tv_usec;
-}
-
-extern void set_normalized_timespec (struct timespec *ts, time_t sec,
- s64 nsec);
-
-
-static inline struct timespec
-timespec_add (struct timespec lhs, struct timespec rhs)
-{
- struct timespec ts_delta;
- set_normalized_timespec (&ts_delta, lhs.tv_sec + rhs.tv_sec,
- lhs.tv_nsec + rhs.tv_nsec);
- return ts_delta;
-}
-
-/*
- * sub = lhs - rhs, in normalized form
- */
-static inline struct timespec
-timespec_sub (struct timespec lhs, struct timespec rhs)
-{
- struct timespec ts_delta;
- set_normalized_timespec (&ts_delta, lhs.tv_sec - rhs.tv_sec,
- lhs.tv_nsec - rhs.tv_nsec);
- return ts_delta;
-}
-
-/*
- * ################
- * kernel time.c
- * ################
- * */
-
-
-/**
- * set_normalized_timespec - set timespec sec and nsec parts and normalize
- *
- * @ts: pointer to timespec variable to be set
- * @sec: seconds to set
- * @nsec: nanoseconds to set
- *
- * Set seconds and nanoseconds field of a timespec variable and
- * normalize to the timespec storage format
- *
- * Note: The tv_nsec part is always in the range of
- * 0 <= tv_nsec < NSEC_PER_SEC
- * For negative values only the tv_sec field is negative !
- */
-void
-set_normalized_timespec (struct timespec *ts, time_t sec, s64 nsec)
-{
- while (nsec >= NSEC_PER_SEC)
- {
- /*
- * The following asm() prevents the compiler from
- * optimising this loop into a modulo operation. See
- * also __iter_div_u64_rem() in include/linux/time.h
- */
- asm ("":"+rm" (nsec));
- nsec -= NSEC_PER_SEC;
- ++sec;
- }
- while (nsec < 0)
- {
- asm ("":"+rm" (nsec));
- nsec += NSEC_PER_SEC;
- --sec;
- }
- ts->tv_sec = sec;
- ts->tv_nsec = nsec;
-}
-
-#define vcom_timerisvalid(tvp) (!((tvp)->tv_sec < 0 || (tvp)->tv_usec < 0))
-
-/* Macros for converting between `struct timeval' and `struct timespec'. */
-#define VCOM_TIMEVAL_TO_TIMESPEC(tv, ts) { \
- (ts)->tv_sec = (tv)->tv_sec; \
- (ts)->tv_nsec = (tv)->tv_usec * 1000; \
-}
-#define VCOM_TIMESPEC_TO_TIMEVAL(tv, ts) { \
- (tv)->tv_sec = (ts)->tv_sec; \
- (tv)->tv_usec = (ts)->tv_nsec / 1000; \
-}
-
-static inline int
-vcom_select_impl (int vcom_nfds, fd_set * __restrict vcom_readfds,
- fd_set * __restrict vcom_writefds,
- fd_set * __restrict vcom_exceptfds,
- struct timeval *__restrict timeout)
-{
- return vcom_socket_select (vcom_nfds, vcom_readfds,
- vcom_writefds, vcom_exceptfds, timeout);
-}
-
-int
-vcom_select (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- struct timeval *__restrict __timeout)
-{
- int rv;
- int rv2 = 0;
- pid_t pid = getpid ();
-
- int timedout = 0;
- /* block indefinitely */
- int no_timeout = 0;
- int first_clock_gettime_failed = 0;
- /* timeout value in units of timespec */
- struct timespec timeout_ts;
- struct timespec start_time, now, end_time;
-
- /* select sets attributes - after merge */
- int new_nfds = 0;
- int new_nfd = -1;
-
- /* vcom */
- int vcom_nfds = 0;
- fd_set vcom_readfds;
- fd_set vcom_writefds;
- fd_set vcom_exceptfds;
- int vcom_nfd = -1;
-
- /* libc */
- int libc_nfds = 0;
- fd_set libc_readfds;
- fd_set libc_writefds;
- fd_set libc_exceptfds;
- int libc_nfd = -1;
-
- /* for polling */
- struct timeval tv = {.tv_sec = 0,.tv_usec = 0 };
-
- /* validate __timeout */
- if (__timeout)
- {
- /* validate tv_sec */
- /* bogus */
- if (!vcom_timerisvalid (__timeout))
- {
- rv = -EINVAL;
- goto select_done;
- }
-
- /* validate tv_usec */
- /* TBD: */
- /* init timeout_ts */
- VCOM_TIMEVAL_TO_TIMESPEC (__timeout, &timeout_ts);
- set_normalized_timespec (&timeout_ts,
- timeout_ts.tv_sec, timeout_ts.tv_nsec);
- }
-
- rv = clock_gettime (CLOCK_MONOTONIC, &start_time);
- if (rv == -1)
- {
- rv = -errno;
- first_clock_gettime_failed = 1;
- goto select_done;
- }
-
- /* init end_time */
- if (__timeout)
- {
- if (timerisset (__timeout))
- {
- end_time = timespec_add (start_time, timeout_ts);
- }
- else
- {
- /*
- * if both fields of the timeout structure are zero,
- * then select returns immediately
- * */
- end_time = start_time;
- }
- }
- else
- {
- /* block indefinitely */
- no_timeout = 1;
- }
-
-
-
- if (vcom_init () != 0)
- {
- rv = -1;
- goto select_done;
- }
-
- /* validate __nfds */
- if (__nfds < 0 || __nfds > FD_SETSIZE)
- {
- rv = -EINVAL;
- goto select_done;
- }
-
-
- /*
- * usleep(3) emulation
- * */
-
- /* call libc_select() with a finite timeout and
- * no file descriptors or empty fd sets and
- * zero nfds */
- if (__nfds == 0 &&
- (!__readfds || fd_set_iszero (__readfds)) &&
- (!__writefds || fd_set_iszero (__writefds)) &&
- (!__exceptfds || fd_set_iszero (__exceptfds)))
- {
- if (__timeout)
- {
- rv = libc_select (__nfds,
- __readfds, __writefds, __exceptfds, __timeout);
- if (rv == -1)
- rv = -errno;
- }
- else
- {
- /* TBD: block indefinitely or return -EINVAL */
- rv = -EINVAL;
- }
- goto select_done;
- }
-
- /* init once before the polling loop */
-
- /* zero vcom and libc fd sets */
- /*
- * S select fd set
- * V vcom fd set
- * L libc fd set
- */
-#define _(S,V,L) \
- if ((S)) \
- { \
- FD_ZERO ((V)); \
- FD_ZERO ((L)); \
- }
-
-
- _(__readfds, &vcom_readfds, &libc_readfds);
- _(__writefds, &vcom_writefds, &libc_writefds);
- _(__exceptfds, &vcom_exceptfds, &libc_exceptfds);
-#undef _
- new_nfds = 0;
- new_nfd = -1;
-
- vcom_nfds = 0;
- vcom_nfd = -1;
- libc_nfds = 0;
- libc_nfd = -1;
-
- vcom_fd_set_split (
- /* src, select sets */
- __nfds, __readfds, __writefds, __exceptfds,
- /* dest1, vcom sets */
- __readfds || __writefds || __exceptfds ?
- &vcom_nfds : NULL,
- __readfds ? &vcom_readfds : NULL,
- __writefds ? &vcom_writefds : NULL,
- __exceptfds ? &vcom_exceptfds : NULL,
- __readfds || __writefds || __exceptfds ?
- &vcom_nfd : NULL,
- /* dest2, libc sets */
- __readfds || __writefds || __exceptfds ?
- &libc_nfds : NULL,
- __readfds ? &libc_readfds : NULL,
- __writefds ? &libc_writefds : NULL,
- __exceptfds ? &libc_exceptfds : NULL,
- __readfds || __writefds || __exceptfds ?
- &libc_nfd : NULL);
-
- /*
- * polling loop
- * */
- do
- {
- new_nfd = -1;
- vcom_nfd = -1;
- libc_nfd = -1;
-
- /*
- * if both fields of timeval structure are zero,
- * vcom_select_impl and libc_select returns immediately.
- * useful for polling and ensure fairness among
- * file descriptors watched.
- */
-
- /* for polling */
- tv.tv_sec = 0;
- tv.tv_usec = 0;
-
- /* select on vcom fds */
- if (vcom_nfds)
- {
- vcom_nfd = vcom_select_impl (vcom_nfds,
- __readfds ? &vcom_readfds : NULL,
- __writefds ? &vcom_writefds : NULL,
- __exceptfds ? &vcom_exceptfds : NULL,
- &tv);
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d] select vcom: "
- "'%04d'='%04d'\n", pid, vcom_nfd, vcom_nfds);
-
- if (vcom_nfd < 0)
- {
- rv = vcom_nfd;
- goto select_done;
- }
- }
- /* select on libc fds */
- if (libc_nfds)
- {
- libc_nfd = libc_select (libc_nfds,
- __readfds ? &libc_readfds : NULL,
- __writefds ? &libc_writefds : NULL,
- __exceptfds ? &libc_exceptfds : NULL, &tv);
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d] select libc: "
- "'%04d'='%04d'\n", pid, libc_nfd, libc_nfds);
-
- if (libc_nfd < 0)
- {
- /* tv becomes undefined */
- libc_nfd = errno;
- rv = libc_nfd;
- goto select_done;
- }
- }
-
- /* check if any file descriptors changed status */
- if ((vcom_nfds && vcom_nfd > 0) || (libc_nfds && libc_nfd > 0))
- {
- /* zero the sets before merge and exit */
-
- /*
- * F fd set
- */
-#define _(F) \
- if ((F)) \
- { \
- FD_ZERO ((F)); \
- }
-
-
- _(__readfds);
- _(__writefds);
- _(__exceptfds);
-#undef _
- new_nfds = 0;
- new_nfd = -1;
-
- /*
- * on exit, sets are modified in place to indicate which
- * file descriptors actually changed status
- * */
- vcom_fd_set_merge (
- /* dest, select sets */
- __readfds || __writefds || __exceptfds ?
- &new_nfds : NULL,
- __readfds,
- __writefds,
- __exceptfds,
- __readfds || __writefds || __exceptfds ?
- &new_nfd : NULL,
- /* src1, vcom sets */
- vcom_nfds,
- __readfds ? &vcom_readfds : NULL,
- __writefds ? &vcom_writefds : NULL,
- __exceptfds ? &vcom_exceptfds : NULL, vcom_nfd,
- /* src2, libc sets */
- libc_nfds,
- __readfds ? &libc_readfds : NULL,
- __writefds ? &libc_writefds : NULL,
- __exceptfds ? &libc_exceptfds : NULL, libc_nfd);
- /*
- * return the number of file descriptors contained in the
- * three returned sets
- * */
- rv = 0;
- /*
- * for documentation
- *
- * if(vcom_nfd > 0)
- * rv += vcom_nfd;
- * if(libc_nfd > 0)
- * rv += libc_nfd;
- */
-
- rv = new_nfd == -1 ? 0 : new_nfd;
- goto select_done;
- }
-
- rv = clock_gettime (CLOCK_MONOTONIC, &now);
- if (rv == -1)
- {
- rv = -errno;
- goto select_done;
- }
- }
- while (no_timeout || timespec_compare (&now, &end_time) < 0);
-
- /* timeout expired before anything interesting happened */
- timedout = 1;
- rv = 0;
-
-select_done:
- if (VCOM_DEBUG > 2)
- fprintf (stderr, "[%d] vselect1: " "'%04d'='%04d'\n", pid, rv, __nfds);
- /*
- * modify timeout parameter to reflect the amount of time not slept
- * */
- if (__timeout)
- {
- if (vcom_timerisvalid (__timeout))
- {
- /* timeout expired */
- if (timedout)
- {
- timerclear (__timeout);
- }
- else if (!first_clock_gettime_failed)
- {
- rv2 = clock_gettime (CLOCK_MONOTONIC, &now);
- if (rv2 == -1)
- {
- rv = -errno;
- }
- else
- {
- struct timespec ts_delta;
- ts_delta = timespec_sub (end_time, now);
- VCOM_TIMESPEC_TO_TIMEVAL (__timeout, &ts_delta);
- }
- }
- }
- }
- if (VCOM_DEBUG > 2)
- fprintf (stderr, "[%d] vselect2: " "'%04d',='%04d'\n", pid, rv, __nfds);
-
- return rv;
-}
-
-int
-vcom_select_internal (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- struct timeval *__restrict __timeout)
-{
- int rv;
- int new_nfds = 0;
- int nfd = 0;
- pid_t pid = getpid ();
-
- fd_set saved_readfds;
- fd_set saved_writefds;
- fd_set saved_exceptfds;
-
- /* validate __nfds */
- if (__nfds < 0)
- {
- errno = EINVAL;
- return -1;
- }
-
- /* validate __timeout */
- if (__timeout)
- {
- /* validate tv_sec */
- /* bogus */
- if (__timeout->tv_sec < 0 || __timeout->tv_usec < 0)
- {
- errno = EINVAL;
- return -1;
- }
-
- /* validate tv_usec */
- /* TBD: */
- }
-
- /* init saved_x fds */
- if (__readfds)
- {
- saved_readfds = *__readfds;
- /*
- memcpy (&saved_readfds, __readfds, sizeof (*__readfds));
- */
- }
- else
- {
- FD_ZERO (&saved_readfds);
- }
-
- if (__writefds)
- {
- saved_writefds = *__writefds;
- /*
- memcpy (&saved_writefds, __writefds, sizeof (*__writefds));
- */
-
- }
- else
- {
- FD_ZERO (&saved_writefds);
- }
-
- if (__exceptfds)
- {
- saved_exceptfds = *__exceptfds;
- /*
- memcpy (&saved_exceptfds, __exceptfds, sizeof (*__exceptfds));
- */
-
- }
- else
- {
- FD_ZERO (&saved_exceptfds);
- }
-
- /* clear vcom fds */
- nfd = vcom_fd_clear (__nfds, &new_nfds, __readfds, __writefds, __exceptfds);
-
- /* set to an invalid value */
- rv = -2;
- /* have kernel fds */
- if (new_nfds)
- rv = libc_select (new_nfds, __readfds,
- __writefds, __exceptfds, __timeout);
-
- if (new_nfds && rv == -1)
- {
- /* on error, the file descriptor sets are unmodified */
- if (__readfds)
- *__readfds = saved_readfds;
- if (__writefds)
- *__writefds = saved_writefds;
- if (__exceptfds)
- *__exceptfds = saved_exceptfds;
- return rv;
- }
- else if ((new_nfds && rv != -1) || (rv == -2))
- {
- /* restore vcom fds */
- nfd = vcom_fd_set (__nfds,
- &new_nfds,
- __readfds,
- __writefds,
- __exceptfds,
- &saved_readfds, &saved_writefds, &saved_exceptfds);
- rv = nfd;
- }
-
- if (VCOM_DEBUG > 0)
- fprintf (stderr, "[%d] select: " "'%04d'='%04d'\n", pid, rv, __nfds);
- return rv;
-}
-
-int
-select (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds, struct timeval *__restrict __timeout)
-{
- int rv = 0;
- pid_t pid = getpid ();
-
- if (VCOM_DEBUG > 2)
- fprintf (stderr, "[%d] select1: " "'%04d'='%04d'\n", pid, rv, __nfds);
- rv = vcom_select (__nfds, __readfds, __writefds, __exceptfds, __timeout);
- if (VCOM_DEBUG > 2)
- fprintf (stderr, "[%d] select2: " "'%04d'='%04d'\n", pid, rv, __nfds);
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return rv;
-}
-
-#ifdef __USE_XOPEN2K
-/*
- * Same as above only that the TIMEOUT value is given with higher
- * resolution and a sigmask which is been set temporarily. This
- * version should be used.
- *
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-int
-vcom_pselect (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- const struct timespec *__restrict __timeout,
- const __sigset_t * __restrict __sigmask)
-{
- int fd;
- int vcom_nfds = 0;
-
- for (fd = 0; fd < __nfds; fd++)
- {
- if (__readfds && FD_ISSET (fd, __readfds))
- {
- if (is_vcom_socket_fd (fd))
- {
- vcom_nfds++;
- }
- }
-
- if (__writefds && FD_ISSET (fd, __writefds))
- {
- if (is_vcom_socket_fd (fd))
- {
- vcom_nfds++;
- }
- }
- if (__exceptfds && FD_ISSET (fd, __exceptfds))
- {
- if (is_vcom_socket_fd (fd))
- {
- FD_CLR (fd, __exceptfds);
- }
- }
- }
- return vcom_nfds;
-}
-
-int
-pselect (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- const struct timespec *__restrict __timeout,
- const __sigset_t * __restrict __sigmask)
-{
- int rv;
- int new_nfds = 0;
- int nfd = 0;
- pid_t pid = getpid ();
-
- fd_set saved_readfds;
- fd_set saved_writefds;
- fd_set saved_exceptfds;
-
- /* validate __nfds */
- if (__nfds < 0)
- {
- errno = EINVAL;
- return -1;
- }
-
- /* validate __timeout */
- if (__timeout)
- {
- /* validate tv_sec */
- /* bogus */
- if (__timeout->tv_sec < 0 || __timeout->tv_nsec < 0)
- {
- errno = EINVAL;
- return -1;
- }
-
- /* validate tv_usec */
- /* TBD: */
- }
-
- /* init saved fds */
- if (__readfds)
- {
- saved_readfds = *__readfds;
- /*
- memcpy (&saved_readfds, __readfds, sizeof (*__readfds));
- */
- }
- else
- {
- FD_ZERO (&saved_readfds);
- }
-
- if (__writefds)
- {
- saved_writefds = *__writefds;
- /*
- memcpy (&saved_writefds, __writefds, sizeof (*__writefds));
- */
-
- }
- else
- {
- FD_ZERO (&saved_writefds);
- }
-
- if (__exceptfds)
- {
- saved_exceptfds = *__exceptfds;
- /*
- memcpy (&saved_exceptfds, __exceptfds, sizeof (*__exceptfds));
- */
-
- }
- else
- {
- FD_ZERO (&saved_exceptfds);
- }
-
- /* clear vcom fds */
- nfd = vcom_fd_clear (__nfds, &new_nfds, __readfds, __writefds, __exceptfds);
-
- /* set to an invalid value */
- rv = -2;
- if (new_nfds)
- rv = libc_pselect (new_nfds,
- __readfds,
- __writefds, __exceptfds, __timeout, __sigmask);
-
- if (new_nfds && rv == -1)
- {
- /* on error, the file descriptor sets are unmodified */
- if (__readfds)
- *__readfds = saved_readfds;
- if (__writefds)
- *__writefds = saved_writefds;
- if (__exceptfds)
- *__exceptfds = saved_exceptfds;
- return rv;
- }
- else if ((new_nfds && rv != -1) || (rv == -2))
- {
- /* restore vcom fds */
- nfd = vcom_fd_set (__nfds,
- &new_nfds,
- __readfds,
- __writefds,
- __exceptfds,
- &saved_readfds, &saved_writefds, &saved_exceptfds);
- rv = nfd;
- }
-
- if (VCOM_DEBUG > 2)
- fprintf (stderr, "[%d] pselect: " "'%04d'='%04d'\n", pid, rv, __nfds);
- return rv;
-}
-#endif
-
-/*
- *
- * Socket specific glibc api
- *
- */
-
-/* Create a new socket of type TYPE in domain DOMAIN, using
- * protocol PROTOCOL. If PROTOCOL is zero, one is chosen
- * automatically. Returns a file descriptor for the new socket,
- * or -1 for errors.
- * RETURN: a valid file descriptor for the new socket,
- * or -1 for errors.
- * */
-
-int
-vcom_socket (int __domain, int __type, int __protocol)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_socket (__domain, __type, __protocol);
-}
-
-int
-socket (int __domain, int __type, int __protocol)
-{
- int rv;
- pid_t pid = getpid ();
- pthread_t tid = pthread_self ();
-
- /* handle domains implemented by vpp */
- switch (__domain)
- {
- case AF_INET:
- case AF_INET6:
- /* handle types implemented by vpp */
- switch (__type & ~(SOCK_CLOEXEC | SOCK_NONBLOCK))
- {
- case SOCK_STREAM:
- case SOCK_DGRAM:
- if (VCOM_DEBUG > 0)
- vcom_socket_main_show ();
- rv = vcom_socket (__domain, __type, __protocol);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d][%lu (0x%lx)] socket: "
- "'%04d'= D='%04d', T='%04d', P='%04d'\n",
- pid, (unsigned long) tid, (unsigned long) tid,
- rv, __domain, __type, __protocol);
- if (VCOM_DEBUG > 0)
- vcom_socket_main_show ();
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return rv;
- break;
-
- default:
- goto CALL_GLIBC_SOCKET_API;
- break;
- }
-
- break;
-
- default:
- goto CALL_GLIBC_SOCKET_API;
- break;
- }
-
-CALL_GLIBC_SOCKET_API:
- return libc_socket (__domain, __type, __protocol);
-}
-
-/*
- * Create two new sockets, of type TYPE in domain DOMAIN and using
- * protocol PROTOCOL, which are connected to each other, and put file
- * descriptors for them in FDS[0] and FDS[1]. If PROTOCOL is zero,
- * one will be chosen automatically.
- * Returns 0 on success, -1 for errors.
- * */
-int
-vcom_socketpair (int __domain, int __type, int __protocol, int __fds[2])
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_socketpair (__domain, __type, __protocol, __fds);
-}
-
-int
-socketpair (int __domain, int __type, int __protocol, int __fds[2])
-{
- int rv;
- pid_t pid = getpid ();
-
- /* handle domains implemented by vpp */
- switch (__domain)
- {
- case AF_INET:
- case AF_INET6:
- /* handle types implemented by vpp */
- switch (__type)
- {
- case SOCK_STREAM:
- case SOCK_DGRAM:
- rv = vcom_socketpair (__domain, __type, __protocol, __fds);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] socketpair: "
- "'%04d'= D='%04d', T='%04d', P='%04d'\n",
- pid, rv, __domain, __type, __protocol);
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- break;
-
- default:
- goto CALL_GLIBC_SOCKET_API;
- break;
- }
-
- break;
-
- default:
- goto CALL_GLIBC_SOCKET_API;
- break;
- }
-
-CALL_GLIBC_SOCKET_API:
- return libc_socketpair (__domain, __type, __protocol, __fds);
-}
-
-/*
- * Give the socket FD the local address ADDR
- * (which is LEN bytes long).
- * */
-int
-vcom_bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len)
-{
- int rv;
-
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- /* validate __len */
- switch (__addr->sa_family)
- {
- case AF_INET:
- if (__len != sizeof (struct sockaddr_in))
- return -EINVAL;
- break;
- case AF_INET6:
- if (__len != sizeof (struct sockaddr_in6))
- return -EINVAL;
- break;
-
- default:
- return -1;
- break;
- }
-
- /* handle domains implemented by vpp */
- switch (__addr->sa_family)
- {
- case AF_INET:
- case AF_INET6:
- rv = vcom_socket_bind (__fd, __addr, __len);
- return rv;
- break;
-
- default:
- return -1;
- break;
- }
-
- return -1;
-}
-
-int
-bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
-
- rv = vcom_bind (__fd, __addr, __len);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] bind: "
- "'%04d'='%04d', '%p', '%04d'\n",
- pid, rv, __fd, __addr, __len);
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
- return libc_bind (__fd, __addr, __len);
-}
-
-/*
- * Put the local address of FD into *ADDR and its length in *LEN.
- * */
-int
-vcom_getsockname (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __len)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_getsockname (__fd, __addr, __len);
-}
-
-int
-getsockname (int __fd, __SOCKADDR_ARG __addr, socklen_t * __restrict __len)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_getsockname (__fd, __addr, __len);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] getsockname: "
- "'%04d'='%04d', '%p', '%p'\n", pid, rv, __fd, __addr, __len);
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
- return libc_getsockname (__fd, __addr, __len);
-}
-
-/*
- * Open a connection on socket FD to peer at ADDR
- * (which LEN bytes long). For connectionless socket types, just set
- * the default address to send to and the only address from which to
- * accept transmissions. Return 0 on success, -1 for errors.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-int
-vcom_connect (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len)
-{
- int rv = -1;
-
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- /* validate __len */
- switch (__addr->sa_family)
- {
- case AF_INET:
- if (__len != INET_ADDRSTRLEN)
- return -1;
- break;
- case AF_INET6:
- if (__len != INET6_ADDRSTRLEN)
- return -1;
- break;
-
- default:
- return -1;
- break;
- }
-
- /* handle domains implemented by vpp */
- switch (__addr->sa_family)
- {
- case AF_INET:
- case AF_INET6:
- rv = vcom_socket_connect (__fd, __addr, __len);
- break;
-
- default:
- return -1;
- break;
- }
-
- return rv;
-}
-
-int
-connect (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len)
-{
- int rv;
- pid_t pid = getpid ();
- pthread_t tid = pthread_self ();
-
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_connect (__fd, __addr, __len);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d][%lu (0x%lx)] connect: "
- "'%04d'='%04d', '%p', '%04d'\n",
- pid, (unsigned long) tid, (unsigned long) tid,
- rv, __fd, __addr, __len);
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
-
- return libc_connect (__fd, __addr, __len);
-}
-
-/*
- * Put the address of the peer connected to socket FD into *ADDR
- * (which is *LEN bytes long), and its actual length into *LEN.
- * */
-int
-vcom_getpeername (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __len)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_getpeername (__fd, __addr, __len);
-}
-
-int
-getpeername (int __fd, __SOCKADDR_ARG __addr, socklen_t * __restrict __len)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_getpeername (__fd, __addr, __len);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] getpeername: "
- "'%04d'='%04d', '%p', '%p'\n", pid, rv, __fd, __addr, __len);
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
- return libc_getpeername (__fd, __addr, __len);
-}
-
-/*
- * Send N bytes of BUF to socket FD. Returns the number sent or -1.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-ssize_t
-vcom_send (int __fd, const void *__buf, size_t __n, int __flags)
-{
-
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_send (__fd, (void *) __buf, (int) __n, __flags);
-}
-
-ssize_t
-send (int __fd, const void *__buf, size_t __n, int __flags)
-{
- ssize_t size;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_send (__fd, __buf, __n, __flags);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] send: "
- "'%04d'='%04d', '%p', '%04d', '%04x'\n",
- pid, (int) size, __fd, __buf, (int) __n, __flags);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_send (__fd, __buf, __n, __flags);
-}
-
-/*
- * Read N bytes into BUF from socket FD.
- * Returns the number read or -1 for errors.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-ssize_t
-vcom_recv (int __fd, void *__buf, size_t __n, int __flags)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_recv (__fd, __buf, __n, __flags);
-}
-
-ssize_t
-recv (int __fd, void *__buf, size_t __n, int __flags)
-{
- ssize_t size;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_recv (__fd, __buf, __n, __flags);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] recv: "
- "'%04d'='%04d', '%p', '%04d', '%04x'\n",
- pid, (int) size, __fd, __buf, (int) __n, __flags);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_recv (__fd, __buf, __n, __flags);
-}
-
-/*
- * Send N bytes of BUF on socket FD to peer at address ADDR (which is
- * ADDR_LEN bytes long). Returns the number sent, or -1 for errors.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-ssize_t
-vcom_sendto (int __fd, const void *__buf, size_t __n, int __flags,
- __CONST_SOCKADDR_ARG __addr, socklen_t __addr_len)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_sendto (__fd, __buf, __n, __flags, __addr, __addr_len);
-}
-
-ssize_t
-sendto (int __fd, const void *__buf, size_t __n, int __flags,
- __CONST_SOCKADDR_ARG __addr, socklen_t __addr_len)
-{
- ssize_t size;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_sendto (__fd, __buf, __n, __flags, __addr, __addr_len);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] sendto: "
- "'%04d'='%04d', '%p', '%04d', '%04x', "
- "'%p', '%04d'\n",
- pid, (int) size, __fd, __buf, (int) __n, __flags,
- __addr, __addr_len);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_sendto (__fd, __buf, __n, __flags, __addr, __addr_len);
-}
-
-/*
- * Read N bytes into BUF through socket FD.
- * If ADDR is not NULL, fill in *ADDR_LEN bytes of it with the
- * address of the sender, and store the actual size of the address
- * in *ADDR_LEN.
- * Returns the number of bytes read or -1 for errors.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-ssize_t
-vcom_recvfrom (int __fd, void *__restrict __buf, size_t __n,
- int __flags,
- __SOCKADDR_ARG __addr, socklen_t * __restrict __addr_len)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_recvfrom (__fd, __buf, __n, __flags, __addr, __addr_len);
-}
-
-ssize_t
-recvfrom (int __fd, void *__restrict __buf, size_t __n,
- int __flags,
- __SOCKADDR_ARG __addr, socklen_t * __restrict __addr_len)
-{
- ssize_t size;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_recvfrom (__fd, __buf, __n, __flags, __addr, __addr_len);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] recvfrom: "
- "'%04d'='%04d', '%p', '%04d', '%04x', "
- "'%p', '%p'\n",
- pid, (int) size, __fd, __buf, (int) __n, __flags,
- __addr, __addr_len);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_recvfrom (__fd, __buf, __n, __flags, __addr, __addr_len);
-}
-
-/*
- * Send a message described MESSAGE on socket FD.
- * Returns the number of bytes sent, or -1 for errors.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-ssize_t
-vcom_sendmsg (int __fd, const struct msghdr * __message, int __flags)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_sendmsg (__fd, __message, __flags);
-}
-
-ssize_t
-sendmsg (int __fd, const struct msghdr * __message, int __flags)
-{
- ssize_t size;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_sendmsg (__fd, __message, __flags);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] sendmsg: "
- "'%04d'='%04d', '%p', '%04x'\n",
- pid, (int) size, __fd, __message, __flags);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_sendmsg (__fd, __message, __flags);
-}
-
-#ifdef __USE_GNU
-/*
- * Send a VLEN messages as described by VMESSAGES to socket FD.
- * Returns the number of datagrams successfully written
- * or -1 for errors.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-int
-vcom_sendmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_sendmmsg (__fd, __message, __vlen, __flags);
-}
-
-int
-sendmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags)
-{
- ssize_t size;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_sendmmsg (__fd, __message, __vlen, __flags);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] sendmmsg: "
- "'%04d'='%04d', '%p', '%04d', '%04x'\n",
- pid, (int) size, __fd, __vmessages, __vlen, __flags);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_sendmmsg (__fd, __message, __vlen, __flags);
-}
-
-#endif
-
-/*
- * Receive a message as described by MESSAGE from socket FD.
- * Returns the number of bytes read or -1 for errors.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-ssize_t
-vcom_recvmsg (int __fd, struct msghdr * __message, int __flags)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_recvmsg (__fd, __message, __flags);
-}
-
-ssize_t
-recvmsg (int __fd, struct msghdr * __message, int __flags)
-{
- ssize_t size;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_recvmsg (__fd, __message, __flags);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] recvmsg: "
- "'%04d'='%04d', '%p', '%04x'\n",
- pid, (int) size, __fd, __message, __flags);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_recvmsg (__fd, __message, __flags);
-}
-
-#ifdef __USE_GNU
-/*
- * Receive up to VLEN messages as described by VMESSAGES from socket FD.
- * Returns the number of messages received or -1 for errors.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-int
-vcom_recvmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags, struct timespec *__tmo)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_recvmmsg (__fd, __message, __vlen, __flags, __tmo);
-}
-
-int
-recvmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags, struct timespec *__tmo)
-{
- ssize_t size;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- size = vcom_recvmmsg (__fd, __message, __vlen, __flags, __tmo);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] recvmmsg: "
- "'%04d'='%04d', '%p', "
- "'%04d', '%04x', '%p'\n",
- pid, (int) size, __fd, __vmessages, __vlen, __flags, __tmo);
- if (size < 0)
- {
- errno = -size;
- return -1;
- }
- return size;
- }
- return libc_recvmmsg (__fd, __message, __vlen, __flags, __tmo);
-}
-
-#endif
-
-/*
- * Put the current value for socket FD's option OPTNAME
- * at protocol level LEVEL into OPTVAL (which is *OPTLEN bytes long),
- * and set *OPTLEN to the value's actual length.
- * Returns 0 on success, -1 for errors.
- * */
-int
-vcom_getsockopt (int __fd, int __level, int __optname,
- void *__restrict __optval, socklen_t * __restrict __optlen)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_getsockopt (__fd, __level, __optname,
- __optval, __optlen);
-}
-
-int
-getsockopt (int __fd, int __level, int __optname,
- void *__restrict __optval, socklen_t * __restrict __optlen)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_getsockopt (__fd, __level, __optname, __optval, __optlen);
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d] getsockopt: "
- "'%04d'='%04d', '%04d', '%04d', "
- "'%p', '%p'\n",
- pid, rv, __fd, __level, __optname, __optval, __optlen);
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
- return libc_getsockopt (__fd, __level, __optname, __optval, __optlen);
-}
-
-/*
- * Set socket FD's option OPTNAME at protocol level LEVEL
- * to *OPTVAL (which is OPTLEN bytes long).
- * Returns 0 on success, -1 for errors.
- * */
-int
-vcom_setsockopt (int __fd, int __level, int __optname,
- const void *__optval, socklen_t __optlen)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_setsockopt (__fd, __level, __optname,
- __optval, __optlen);
-}
-
-int
-setsockopt (int __fd, int __level, int __optname,
- const void *__optval, socklen_t __optlen)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_setsockopt (__fd, __level, __optname, __optval, __optlen);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] setsockopt: "
- "'%04d'='%04d', '%04d', '%04d', "
- "'%p', '%04d'\n",
- pid, rv, __fd, __level, __optname, __optval, __optlen);
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
- return libc_setsockopt (__fd, __level, __optname, __optval, __optlen);
-}
-
-/*
- * Prepare to accept connections on socket FD.
- * N connection requests will be queued before further
- * requests are refused.
- * Returns 0 on success, -1 for errors.
- * */
-int
-vcom_listen (int __fd, int __n)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_listen (__fd, __n);
-}
-
-int
-listen (int __fd, int __n)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_listen (__fd, __n);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] listen: "
- "'%04d'='%04d', '%04d'\n", pid, rv, __fd, __n);
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
- return libc_listen (__fd, __n);
-}
-
-/*
- * Await a connection on socket FD.
- * When a connection arrives, open a new socket to communicate
- * with it, set *ADDR (which is *ADDR_LEN bytes long) to the address
- * of the connecting peer and *ADDR_LEN to the address's actual
- * length, and return the new socket's descriptor, or -1 for errors.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-int
-vcom_accept (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len)
-{
-
- if (vcom_init () != 0)
- {
- return -1;
- }
- return vcom_socket_accept (__fd, __addr, __addr_len);
-}
-
-int
-accept (int __fd, __SOCKADDR_ARG __addr, socklen_t * __restrict __addr_len)
-{
- int rv = -1;
- pid_t pid = getpid ();
- pthread_t tid = pthread_self ();
-
- if (is_vcom_socket_fd (__fd))
- {
- if (VCOM_DEBUG > 0)
- vcom_socket_main_show ();
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d][%lu (0x%lx)] accept1: "
- "'%04d'='%04d', '%p', '%p'\n",
- pid, (unsigned long) tid, (unsigned long) tid,
- rv, __fd, __addr, __addr_len);
- rv = vcom_accept (__fd, __addr, __addr_len);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d][%lu (0x%lx)] accept2: "
- "'%04d'='%04d', '%p', '%p'\n",
- pid, (unsigned long) tid, (unsigned long) tid,
- rv, __fd, __addr, __addr_len);
- if (VCOM_DEBUG > 0)
- vcom_socket_main_show ();
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return rv;
- }
- return libc_accept (__fd, __addr, __addr_len);
-}
-
-#ifdef __USE_GNU
-/*
- * Similar to 'accept' but takes an additional parameter to specify
- * flags.
- * This function is a cancellation point and therefore not marked
- * with __THROW.
- * */
-int
-vcom_accept4 (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len, int __flags)
-{
-
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_socket_accept4 (__fd, __addr, __addr_len, __flags);
-}
-
-int
-accept4 (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len, int __flags)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- if (VCOM_DEBUG > 0)
- vcom_socket_main_show ();
- rv = vcom_accept4 (__fd, __addr, __addr_len, __flags);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] accept4: "
- "'%04d'='%04d', '%p', '%p', '%04x'\n",
- pid, rv, __fd, __addr, __addr_len, __flags);
- if (VCOM_DEBUG > 0)
- vcom_socket_main_show ();
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return rv;
- }
- return libc_accept4 (__fd, __addr, __addr_len, __flags);
-}
-
-#endif
-
-/*
- * Shut down all or part of the connection open on socket FD.
- * HOW determines what to shut down:
- * SHUT_RD = No more receptions;
- * SHUT_WR = No more transmissions;
- * SHUT_RDWR = No more receptions or transmissions.
- * Returns 0 on success, -1 for errors.
- * */
-int
-vcom_shutdown (int __fd, int __how)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
- return vcom_socket_shutdown (__fd, __how);
-}
-
-int
-shutdown (int __fd, int __how)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_shutdown (__fd, __how);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] shutdown: "
- "'%04d'='%04d', '%04d'\n", pid, rv, __fd, __how);
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
- return libc_shutdown (__fd, __how);
-}
-
-int
-vcom_epoll_create (int __size)
-{
-
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- if (__size <= 0)
- {
- return -EINVAL;
- }
-
- /* __size argument is ignored "thereafter" */
- return vcom_epoll_create1 (0);
-}
-
-/*
- * __size argument is ignored, but must be greater than zero
- */
-int
-epoll_create (int __size)
-{
- int rv = 0;
- pid_t pid = getpid ();
-
- rv = vcom_epoll_create (__size);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] epoll_create: " "'%04d'='%04d'\n", pid, rv, __size);
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return rv;
-}
-
-int
-vcom_epoll_create1 (int __flags)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- if (__flags < 0)
- {
- return -EINVAL;
- }
- if (__flags & ~EPOLL_CLOEXEC)
- {
- return -EINVAL;
- }
- /* __flags can be either zero or EPOLL_CLOEXEC */
- /* implementation */
- return vcom_socket_epoll_create1 (__flags);
-}
-
-/*
- * __flags can be either zero or EPOLL_CLOEXEC
- * */
-int
-epoll_create1 (int __flags)
-{
- int rv = 0;
- pid_t pid = getpid ();
-
- rv = vcom_epoll_create1 (__flags);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] epoll_create: " "'%04d'='%08x'\n", pid, rv, __flags);
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return rv;
-}
-
-static inline int
-ep_op_has_event (int op)
-{
- return op != EPOLL_CTL_DEL;
-}
-
-int
-vcom_epoll_ctl (int __epfd, int __op, int __fd, struct epoll_event *__event)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- /*
- * the requested operation __op is not supported
- * by this interface */
- if (!((__op == EPOLL_CTL_ADD) ||
- (__op == EPOLL_CTL_MOD) || (__op == EPOLL_CTL_DEL)))
- {
- return -EINVAL;
- }
-
- /* op is ADD or MOD but event parameter is NULL */
- if ((ep_op_has_event (__op) && !__event))
- {
- return -EFAULT;
- }
-
- /* fd is same as epfd */
- /* do not permit adding an epoll file descriptor inside itself */
- if (__epfd == __fd)
- {
- return -EINVAL;
- }
-
- /* implementation */
- return vcom_socket_epoll_ctl (__epfd, __op, __fd, __event);
-}
-
-/*
- * implement the controller interface for epoll
- * that enables the insertion/removal/change of
- * file descriptors inside the interest set.
- */
-int
-epoll_ctl (int __epfd, int __op, int __fd, struct epoll_event *__event)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (is_vcom_epfd (__epfd))
- {
- /* TBD: currently limiting epoll to support only vcom fds */
- if (is_vcom_socket_fd (__fd))
- {
- rv = vcom_epoll_ctl (__epfd, __op, __fd, __event);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] epoll_ctl: "
- "'%04d'='%04d', '%04d', '%04d'\n",
- pid, rv, __epfd, __op, __fd);
- if (rv != 0)
- {
- errno = -rv;
- return -1;
- }
- return 0;
- }
- else
- {
- /*
- * TBD: currently epoll does not support kernel fds
- * or epoll fds */
- errno = EBADF;
- return -1;
- }
- }
- else
- {
- /* epfd is not an epoll file descriptor */
- errno = EINVAL;
- return -1;
- }
- return 0;
-}
-
-int
-vcom_epoll_wait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return vcom_epoll_pwait (__epfd, __events, __maxevents, __timeout, NULL);
-}
-
-int
-epoll_wait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (__maxevents <= 0 || __maxevents > EP_MAX_EVENTS)
- {
- errno = EINVAL;
- return -1;
- }
-
- if (is_vcom_epfd (__epfd))
- {
- rv = vcom_epoll_wait (__epfd, __events, __maxevents, __timeout);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] epoll_wait: "
- "'%04d'='%04d', '%p', "
- "'%04d', '%04d'\n",
- pid, rv, __epfd, __events, __maxevents, __timeout);
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return rv;
- }
- else
- {
- errno = EINVAL;
- return -1;
- }
- return 0;
-}
-
-
-int
-vcom_epoll_pwait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout, const __sigset_t * __ss)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- /* implementation */
- return vcom_socket_epoll_pwait (__epfd, __events,
- __maxevents, __timeout, __ss);
-}
-
-int
-epoll_pwait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout, const __sigset_t * __ss)
-{
- int rv;
- pid_t pid = getpid ();
-
- if (__maxevents <= 0 || __maxevents > EP_MAX_EVENTS)
- {
- errno = EINVAL;
- return -1;
- }
-
- if (is_vcom_epfd (__epfd))
- {
- rv = vcom_epoll_pwait (__epfd, __events, __maxevents, __timeout, __ss);
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] epoll_pwait: "
- "'%04d'='%04d', '%p', "
- "'%04d', '%04d', "
- "'%p'\n",
- pid, rv, __epfd, __events, __maxevents, __timeout, __ss);
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return rv;
- }
- else
- {
- errno = EINVAL;
- return -1;
- }
-
- return 0;
-}
-
-/* Poll the file descriptors described by the NFDS structures starting at
- FDS. If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
- an event to occur; if TIMEOUT is -1, block until an event occurs.
- Returns the number of file descriptors with events, zero if timed out,
- or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-
-int
-vcom_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
-{
- int rv = 0;
- pid_t pid = getpid ();
-
- struct rlimit nofile_limit;
- struct pollfd vcom_fds[MAX_POLL_NFDS_DEFAULT];
- nfds_t fds_idx = 0;
-
- /* actual set of file descriptors to be monitored */
- nfds_t libc_nfds = 0;
- nfds_t vcom_nfds = 0;
-
- /* ready file descriptors
- *
- * number of structures which have nonzero revents fields
- * in other words, descriptors with events or errors reported.
- * */
- /* after call to libc_poll () */
- int rlibc_nfds = 0;
- /* after call to vcom_socket_poll () */
- int rvcom_nfds = 0;
-
-
- /* timeout value in units of timespec */
- struct timespec timeout_ts;
- struct timespec start_time, now, end_time;
-
-
- /* get start_time */
- rv = clock_gettime (CLOCK_MONOTONIC, &start_time);
- if (rv == -1)
- {
- rv = -errno;
- goto poll_done;
- }
-
- /* set timeout_ts & end_time */
- if (__timeout >= 0)
- {
- /* set timeout_ts */
- timeout_ts.tv_sec = __timeout / MSEC_PER_SEC;
- timeout_ts.tv_nsec = (__timeout % MSEC_PER_SEC) * NSEC_PER_MSEC;
- set_normalized_timespec (&timeout_ts,
- timeout_ts.tv_sec, timeout_ts.tv_nsec);
- /* set end_time */
- if (__timeout)
- {
- end_time = timespec_add (start_time, timeout_ts);
- }
- else
- {
- end_time = start_time;
- }
- }
-
- if (vcom_init () != 0)
- {
- rv = -1;
- goto poll_done;
- }
-
- /* validate __fds */
- if (!__fds)
- {
- rv = -EFAULT;
- goto poll_done;
- }
-
- /* validate __nfds */
- /*TBD: call getrlimit once when vcl-ldpreload library is init */
- rv = getrlimit (RLIMIT_NOFILE, &nofile_limit);
- if (rv != 0)
- {
- rv = -errno;
- goto poll_done;
- }
- if (__nfds >= nofile_limit.rlim_cur || __nfds < 0)
- {
- rv = -EINVAL;
- goto poll_done;
- }
-
- /*
- * for the POC, it's fair to assume that nfds is less than 1024
- * */
- if (__nfds >= MAX_POLL_NFDS_DEFAULT)
- {
- rv = -EINVAL;
- goto poll_done;
- }
-
- /* set revents field (output parameter)
- * to zero
- * */
- for (fds_idx = 0; fds_idx < __nfds; fds_idx++)
- {
- __fds[fds_idx].revents = 0;
- }
-
-#if 0
- /* set revents field (output parameter)
- * to zero for user ignored fds
- * */
- for (fds_idx = 0; fds_idx < __nfds; fds_idx++)
- {
- /*
- * if negative fd, ignore events field
- * and set output parameter (revents field) to zero */
- if (__fds[fds_idx].fd < 0)
- {
- __fds[fds_idx].revents = 0;
- }
- }
-#endif
-
- /*
- * 00. prepare __fds and vcom_fds for polling
- * copy __fds to vcom_fds
- * 01. negate all except libc fds in __fds,
- * ignore user negated fds
- * 02. negate all except vcom_fds in vocm fds,
- * ignore user negated fds
- * ignore fd 0 by setting it to negative number
- * */
- memcpy (vcom_fds, __fds, sizeof (*__fds) * __nfds);
- libc_nfds = 0;
- vcom_nfds = 0;
- for (fds_idx = 0; fds_idx < __nfds; fds_idx++)
- {
- /* ignore negative fds */
- if (__fds[fds_idx].fd < 0)
- {
- continue;
- }
-
- /*
- * 00. ignore vcom fds in __fds
- * 01. ignore libc fds in vcom_fds,
- * ignore fd 0 by setting it to negative number.
- * as fd 0 cannot be ignored.
- */
- if (is_vcom_socket_fd (__fds[fds_idx].fd) ||
- is_vcom_epfd (__fds[fds_idx].fd))
- {
- __fds[fds_idx].fd = -__fds[fds_idx].fd;
- vcom_nfds++;
- }
- else
- {
- libc_nfds++;
- /* ignore fd 0 by setting it to negative number */
- if (!vcom_fds[fds_idx].fd)
- {
- vcom_fds[fds_idx].fd = -1;
- }
- vcom_fds[fds_idx].fd = -vcom_fds[fds_idx].fd;
- }
- }
-
- /*
- * polling loop
- *
- * poll on libc fds and vcom fds
- *
- * specifying a timeout of zero causes libc_poll() and
- * vcom_socket_poll() to return immediately, even if no
- * file descriptors are ready
- * */
- do
- {
- rlibc_nfds = 0;
- rvcom_nfds = 0;
-
- /*
- * timeout parameter for libc_poll () set to zero
- * to poll on libc fds
- * */
-
- /* poll on libc fds */
- if (libc_nfds)
- {
- /*
- * a timeout of zero causes libc_poll()
- * to return immediately
- * */
- rlibc_nfds = libc_poll (__fds, __nfds, 0);
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d] poll libc: "
- "'%04d'='%08lu'\n", pid, rlibc_nfds, __nfds);
-
- if (rlibc_nfds < 0)
- {
- rv = -errno;
- goto poll_done_update_nfds;
- }
- }
-
- /*
- * timeout parameter for vcom_socket_poll () set to zero
- * to poll on vcom fds
- * */
-
- /* poll on vcom fds */
- if (vcom_nfds)
- {
- /*
- * a timeout of zero causes vcom_socket_poll()
- * to return immediately
- * */
- rvcom_nfds = vcom_socket_poll (vcom_fds, __nfds, 0);
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d] poll vcom: "
- "'%04d'='%08lu'\n", pid, rvcom_nfds, __nfds);
- if (rvcom_nfds < 0)
- {
- rv = rvcom_nfds;
- goto poll_done_update_nfds;
- }
- }
-
- /* check if any file descriptors changed status */
- if ((libc_nfds && rlibc_nfds > 0) || (vcom_nfds && rvcom_nfds > 0))
- {
- /* something interesting happened */
- rv = rlibc_nfds + rvcom_nfds;
- goto poll_done_update_nfds;
- }
-
- rv = clock_gettime (CLOCK_MONOTONIC, &now);
- if (rv == -1)
- {
- rv = -errno;
- goto poll_done_update_nfds;
- }
- }
-
- /* block indefinitely || timeout elapsed */
- while ((__timeout < 0) || timespec_compare (&now, &end_time) < 0);
-
- /* timeout expired before anything interesting happened */
- rv = 0;
-
-poll_done_update_nfds:
- for (fds_idx = 0; fds_idx < __nfds; fds_idx++)
- {
- /* ignore negative fds in vcom_fds
- * 00. user negated fds
- * 01. libc fds
- * */
- if (vcom_fds[fds_idx].fd < 0)
- {
- continue;
- }
-
- /* from here on handle positive vcom fds */
- /*
- * restore vcom fds to positive number in __fds
- * and update revents in __fds with the events
- * that actually occurred in vcom fds
- * */
- __fds[fds_idx].fd = -__fds[fds_idx].fd;
- if (rvcom_nfds)
- {
- __fds[fds_idx].revents = vcom_fds[fds_idx].revents;
- }
- }
-
-poll_done:
- if (VCOM_DEBUG > 2)
- fprintf (stderr, "[%d] vpoll: " "'%04d'='%08lu'\n", pid, rv, __nfds);
- return rv;
-}
-
-/*
- * 00. The field __fds[i].fd contains a file descriptor for an
- * open file.
- * If this field is negative, then the corresponding
- * events field is ignored and the revents field returns zero.
- * The field __fds[i].events is an input parameter.
- * The field __fds[i].revents is an output parameter.
- * 01. Specifying a negative value in timeout
- * means an infinite timeout.
- * Specifying a timeout of zero causes poll() to return
- * immediately, even if no file descriptors are ready.
- *
- * NOTE: observed __nfds is less than 128 from kubecon strace files
- */
-
-
-int
-poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
-{
- int rv = 0;
- pid_t pid = getpid ();
-
-
- if (VCOM_DEBUG > 2)
- fprintf (stderr, "[%d] poll1: " "'%04d'='%08lu, %d, 0x%x'\n",
- pid, rv, __nfds, __fds[0].fd, __fds[0].events);
- rv = vcom_poll (__fds, __nfds, __timeout);
- if (VCOM_DEBUG > 2)
- fprintf (stderr, "[%d] poll2: " "'%04d'='%08lu, %d, 0x%x'\n",
- pid, rv, __nfds, __fds[0].fd, __fds[0].revents);
- if (rv < 0)
- {
- errno = -rv;
- return -1;
- }
- return rv;
-}
-
-#ifdef __USE_GNU
-/* Like poll, but before waiting the threads signal mask is replaced
- with that specified in the fourth parameter. For better usability,
- the timeout value is specified using a TIMESPEC object.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-int
-vcom_ppoll (struct pollfd *__fds, nfds_t __nfds,
- const struct timespec *__timeout, const __sigset_t * __ss)
-{
- if (vcom_init () != 0)
- {
- return -1;
- }
-
- return -EOPNOTSUPP;
-}
-
-int
-ppoll (struct pollfd *__fds, nfds_t __nfds,
- const struct timespec *__timeout, const __sigset_t * __ss)
-{
- int rv = 0;
-
- errno = EOPNOTSUPP;
- rv = -1;
- return rv;
-}
-#endif
-
-void CONSTRUCTOR_ATTRIBUTE vcom_constructor (void);
-
-void DESTRUCTOR_ATTRIBUTE vcom_destructor (void);
-
-void
-vcom_constructor (void)
-{
- pid_t pid = getpid ();
-
- swrap_constructor ();
- if (vcom_init () != 0)
- {
- printf ("\n[%d] vcom_constructor...failed!\n", pid);
- }
- else
- {
- printf ("\n[%d] vcom_constructor...done!\n", pid);
- }
-}
-
-/*
- * This function is called when the library is unloaded
- */
-void
-vcom_destructor (void)
-{
- pid_t pid = getpid ();
-
- vcom_destroy ();
- swrap_destructor ();
- printf ("\n[%d] vcom_destructor...done!\n", pid);
-}
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.h b/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.h
deleted file mode 100644
index 5871b5205b0..00000000000
--- a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom.h
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef included_vcom_h
-#define included_vcom_h
-
-/* VCOM DEBUG flag. Setting this to 1 or 0 turns off
- ASSERT & other debugging code. */
-#ifndef VCOM_DEBUG
-#define VCOM_DEBUG 0
-#endif
-
-#include <libvcl-ldpreload/vcom_glibc_socket.h>
-
-#define MAX_VCOM_APP_NAME 256
-
-/* Returns 0 on success or -1 on error. */
-extern int vcom_set_app_name (char *__app_name);
-
-/*
- *
- * File descriptor based APIs
- *
- */
-
-/*
- * vpp implementation of glibc APIs from <unistd.h>
- */
-extern int vcom_close (int __fd);
-
-extern ssize_t __wur vcom_read (int __fd, void *__buf, size_t __nbytes);
-
-extern ssize_t __wur vcom_write (int __fd, const void *__buf, size_t __n);
-
-extern ssize_t __wur vcom_readv (int __fd, const struct iovec *__iov,
- int __iovcnt);
-
-extern ssize_t __wur vcom_writev (int __fd, const struct iovec *__iov,
- int __iovcnt);
-
-/*
- * vpp implementation of glibc APIs from <fcntl.h>
- */
-extern int vcom_fcntl (int __fd, int __cmd, ...);
-
-/*
- * VPP implementation of glibc APIs ioctl
- */
-extern int vcom_ioctl (int __fd, unsigned long int __cmd, ...);
-
-/*
- * vpp implementation of glibc APIs from <sys/select.h>
- */
-extern int
-vcom_select (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- struct timeval *__restrict __timeout);
-
-#ifdef __USE_XOPEN2K
-extern int
-vcom_pselect (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- const struct timespec *__restrict __timeout,
- const __sigset_t * __restrict __sigmask);
-#endif
-
-/*
- * vpp implementation of glibc APIs from <sys/socket.h>
- */
-extern int __THROW vcom_socket (int __domain, int __type, int __protocol);
-
-/* On Linux, the only supported domain for this call is AF_UNIX
-* (or synonymously, AF_LOCAL). Most implementations have the
-* same restriction.
-* vpp does not implement AF_UNIX domain in this release.
-* */
-extern int __THROW
-vcom_socketpair (int __domain, int __type, int __protocol, int __fds[2]);
-
-extern int __THROW
-vcom_bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len);
-
-extern int __THROW
-vcom_getsockname (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __len);
-
-extern int
-vcom_connect (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len);
-
-extern int __THROW
-vcom_getpeername (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __len);
-
-extern ssize_t
-vcom_send (int __fd, const void *__buf, size_t __n, int __flags);
-
-extern ssize_t vcom_recv (int __fd, void *__buf, size_t __n, int __flags);
-
-extern ssize_t
-vcom_sendto (int __fd, const void *__buf, size_t __n,
- int __flags, __CONST_SOCKADDR_ARG __addr, socklen_t __addr_len);
-
-extern ssize_t
-vcom_recvfrom (int __fd, void *__restrict __buf,
- size_t __n, int __flags,
- __SOCKADDR_ARG __addr, socklen_t * __restrict __addr_len);
-
-extern ssize_t
-vcom_sendmsg (int __fd, const struct msghdr *__message, int __flags);
-
-#ifdef __USE_GNU
-extern int
-sendmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags);
-#endif
-
-extern ssize_t vcom_recvmsg (int __fd, struct msghdr *__message, int __flags);
-
-#ifdef __USE_GNU
-extern int
-vcom_recvmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags, struct timespec *__tmo);
-#endif
-
-extern int __THROW
-vcom_getsockopt (int __fd, int __level, int __optname,
- void *__restrict __optval, socklen_t * __restrict __optlen);
-
-extern int __THROW
-vcom_setsockopt (int __fd, int __level, int __optname,
- const void *__optval, socklen_t __optlen);
-
-extern int __THROW vcom_listen (int __fd, int __n);
-
-extern int
-vcom_accept (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len);
-
-#ifdef __USE_GNU
-/*
- * Similar to 'accept' but takes an additional parameter to specify
- * flags.
- * */
-/* TBD: implemented later */
-extern int
-vcom_accept4 (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len, int __flags);
-#endif
-
-extern int __THROW vcom_shutdown (int __fd, int __how);
-
-extern int __THROW vcom_epoll_create (int __size);
-
-extern int __THROW vcom_epoll_create1 (int __flags);
-
-extern int __THROW
-vcom_epoll_ctl (int __epfd, int __op, int __fd, struct epoll_event *__event);
-
-extern int
-vcom_epoll_wait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout);
-
-extern int
-vcom_epoll_pwait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout, const __sigset_t * __ss);
-
-/*
- * NOTE: observed __nfds is less than 128 from kubecon strace files
- * for the POC, it's fair to assume that nfds is less than 1024.
- * TBD: make it thread safe and design to scale.
- * */
-#define MAX_POLL_NFDS_DEFAULT 1024
-extern int vcom_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
-
-#ifdef __USE_GNU
-extern int
-vcom_ppoll (struct pollfd *__fds, nfds_t __nfds,
- const struct timespec *__timeout, const __sigset_t * __ss);
-#endif
-
-
-#endif /* included_vcom_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_glibc_socket.h b/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_glibc_socket.h
deleted file mode 100644
index 4eb60fb65c7..00000000000
--- a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_glibc_socket.h
+++ /dev/null
@@ -1,351 +0,0 @@
-/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef included_vcom_glibc_socket_h
-#define included_vcom_glibc_socket_h
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/select.h>
-#include <arpa/inet.h>
-#include <fcntl.h>
-
-#include <sys/epoll.h>
-
-#include <signal.h>
-#include <poll.h>
-
-/*
- *
- * Generic glibc fd api
- *
- */
-/*
- * glibc APIs from <unistd.h>
- */
-
-/* Close the file descriptor FD.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int close (int __fd);
-
-/* Read NBYTES into BUF from FD. Return the
- number read, -1 for errors or 0 for EOF.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern ssize_t __wur read (int __fd, void *__buf, size_t __nbytes);
-
-/* Write N bytes of BUF to FD. Return the number written, or -1.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern ssize_t __wur write (int __fd, const void *__buf, size_t __n);
-
-
-/*
- * glibc APIs from <fcntl.h>
- */
-
-/* Do the file control operation described by CMD on FD.
- The remaining arguments are interpreted depending on CMD.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int fcntl (int __fd, int __cmd, ...);
-
-
-/*
- * glibc APIs from <sys/select.h>
- */
-
-/* Check the first NFDS descriptors each in READFDS (if not NULL) for read
- readiness, in WRITEFDS (if not NULL) for write readiness, and in EXCEPTFDS
- (if not NULL) for exceptional conditions. If TIMEOUT is not NULL, time out
- after waiting the interval specified therein. Returns the number of ready
- descriptors, or -1 for errors.
-
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int
-select (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- struct timeval *__restrict __timeout);
-
-#ifdef __USE_XOPEN2K
-/* Same as above only that the TIMEOUT value is given with higher
- resolution and a sigmask which is been set temporarily. This version
- should be used.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int
-pselect (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- const struct timespec *__restrict __timeout,
- const __sigset_t * __restrict __sigmask);
-#endif
-
-
-/*
- *
- * Socket specific glibc api
- *
- */
-
-/*
- * glibc APIs from <sys/socket.h>
- */
-
-/* Create a new socket of type TYPE in domain DOMAIN, using
- protocol PROTOCOL. If PROTOCOL is zero, one is chosen automatically.
- Returns a file descriptor for the new socket, or -1 for errors. */
-extern int __THROW socket (int __domain, int __type, int __protocol);
-
-/* Create two new sockets, of type TYPE in domain DOMAIN and using
- protocol PROTOCOL, which are connected to each other, and put file
- descriptors for them in FDS[0] and FDS[1]. If PROTOCOL is zero,
- one will be chosen automatically. Returns 0 on success, -1 for errors. */
-extern int __THROW
-socketpair (int __domain, int __type, int __protocol, int __fds[2]);
-
-/* Give the socket FD the local address ADDR (which is LEN bytes long). */
-extern int __THROW
-bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len);
-
-/* Put the local address of FD into *ADDR and its length in *LEN. */
-extern int __THROW
-getsockname (int __fd, __SOCKADDR_ARG __addr, socklen_t * __restrict __len);
-
-/* Open a connection on socket FD to peer at ADDR (which LEN bytes long).
- For connectionless socket types, just set the default address to send to
- and the only address from which to accept transmissions.
- Return 0 on success, -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int connect (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len);
-
-/* Put the address of the peer connected to socket FD into *ADDR
- (which is *LEN bytes long), and its actual length into *LEN. */
-extern int __THROW
-getpeername (int __fd, __SOCKADDR_ARG __addr, socklen_t * __restrict __len);
-
-/* Send N bytes of BUF to socket FD. Returns the number sent or -1.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern ssize_t send (int __fd, const void *__buf, size_t __n, int __flags);
-
-/* Read N bytes into BUF from socket FD.
- Returns the number read or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern ssize_t recv (int __fd, void *__buf, size_t __n, int __flags);
-
-/* Send N bytes of BUF on socket FD to peer at address ADDR (which is
- ADDR_LEN bytes long). Returns the number sent, or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern ssize_t
-sendto (int __fd, const void *__buf, size_t __n,
- int __flags, __CONST_SOCKADDR_ARG __addr, socklen_t __addr_len);
-
-/* Read N bytes into BUF through socket FD.
- If ADDR is not NULL, fill in *ADDR_LEN bytes of it with tha address of
- the sender, and store the actual size of the address in *ADDR_LEN.
- Returns the number of bytes read or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern ssize_t
-recvfrom (int __fd, void *__restrict __buf,
- size_t __n, int __flags,
- __SOCKADDR_ARG __addr, socklen_t * __restrict __addr_len);
-
-/* Send a message described MESSAGE on socket FD.
- Returns the number of bytes sent, or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern ssize_t
-sendmsg (int __fd, const struct msghdr *__message, int __flags);
-
-#ifdef __USE_GNU
-/* Send a VLEN messages as described by VMESSAGES to socket FD.
- Returns the number of datagrams successfully written or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int
-sendmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags);
-#endif
-
-/* Receive a message as described by MESSAGE from socket FD.
- Returns the number of bytes read or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern ssize_t recvmsg (int __fd, struct msghdr *__message, int __flags);
-
-#ifdef __USE_GNU
-/* Receive up to VLEN messages as described by VMESSAGES from socket FD.
- Returns the number of messages received or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int
-recvmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags, struct timespec *__tmo);
-#endif
-
-
-/* Put the current value for socket FD's option OPTNAME at protocol level LEVEL
- into OPTVAL (which is *OPTLEN bytes long), and set *OPTLEN to the value's
- actual length. Returns 0 on success, -1 for errors. */
-extern int __THROW
-getsockopt (int __fd, int __level, int __optname,
- void *__restrict __optval, socklen_t * __restrict __optlen);
-
-/* Set socket FD's option OPTNAME at protocol level LEVEL
- to *OPTVAL (which is OPTLEN bytes long).
- Returns 0 on success, -1 for errors. */
-extern int __THROW
-setsockopt (int __fd, int __level, int __optname,
- const void *__optval, socklen_t __optlen);
-
-/* Prepare to accept connections on socket FD.
- N connection requests will be queued before further requests are refused.
- Returns 0 on success, -1 for errors. */
-extern int __THROW listen (int __fd, int __n);
-
-/* Await a connection on socket FD.
- When a connection arrives, open a new socket to communicate with it,
- set *ADDR (which is *ADDR_LEN bytes long) to the address of the connecting
- peer and *ADDR_LEN to the address's actual length, and return the
- new socket's descriptor, or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int
-accept (int __fd, __SOCKADDR_ARG __addr, socklen_t * __restrict __addr_len);
-
-#ifdef __USE_GNU
-/* Similar to 'accept' but takes an additional parameter to specify flags.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
- /* TBD: implemented later */
-extern int
-accept4 (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len, int __flags);
-#endif
-
-/* Shut down all or part of the connection open on socket FD.
- HOW determines what to shut down:
- SHUT_RD = No more receptions;
- SHUT_WR = No more transmissions;
- SHUT_RDWR = No more receptions or transmissions.
- Returns 0 on success, -1 for errors. */
-extern int __THROW shutdown (int __fd, int __how);
-
-
-/*
- * glibc APIs from <sys/epoll.h>
- */
-
-/* Creates an epoll instance. Returns an fd for the new instance.
- The "size" parameter is a hint specifying the number of file
- descriptors to be associated with the new instance. The fd
- returned by epoll_create() should be closed with close(). */
-extern int __THROW epoll_create (int __size);
-
-/* Same as epoll_create but with an FLAGS parameter. The unused SIZE
- parameter has been dropped. */
-extern int __THROW epoll_create1 (int __flags);
-
-/* Manipulate an epoll instance "epfd". Returns 0 in case of success,
- -1 in case of error ( the "errno" variable will contain the
- specific error code ) The "op" parameter is one of the EPOLL_CTL_*
- constants defined above. The "fd" parameter is the target of the
- operation. The "event" parameter describes which events the caller
- is interested in and any associated user data. */
-extern int __THROW
-epoll_ctl (int __epfd, int __op, int __fd, struct epoll_event *__event);
-
-#define EP_INT_MAX ((int)(~0U>>1))
-#define EP_MAX_EVENTS (EP_INT_MAX / sizeof(struct epoll_event))
-
-/* Wait for events on an epoll instance "epfd". Returns the number of
- triggered events returned in "events" buffer. Or -1 in case of
- error with the "errno" variable set to the specific error code. The
- "events" parameter is a buffer that will contain triggered
- events. The "maxevents" is the maximum number of events to be
- returned ( usually size of "events" ). The "timeout" parameter
- specifies the maximum wait time in milliseconds (-1 == infinite).
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int
-epoll_wait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout);
-
-/* Same as epoll_wait, but the thread's signal mask is temporarily
- and atomically replaced with the one provided as parameter.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int
-epoll_pwait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout, const __sigset_t * __ss);
-
-/* Poll the file descriptors described by the NFDS structures starting at
- FDS. If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
- an event to occur; if TIMEOUT is -1, block until an event occurs.
- Returns the number of file descriptors with events, zero if timed out,
- or -1 for errors.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
-
-#ifdef __USE_GNU
-/* Like poll, but before waiting the threads signal mask is replaced
- with that specified in the fourth parameter. For better usability,
- the timeout value is specified using a TIMESPEC object.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int ppoll (struct pollfd *__fds, nfds_t __nfds,
- const struct timespec *__timeout, const __sigset_t * __ss);
-#endif
-
-
-#endif /* included_vcom_glibc_socket_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.c b/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.c
deleted file mode 100644
index 7b5f6c84f83..00000000000
--- a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.c
+++ /dev/null
@@ -1,3447 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <unistd.h>
-#include <stdio.h>
-#include <sys/uio.h>
-#include <limits.h>
-#define __need_IOV_MAX
-#include <bits/stdio_lim.h>
-#include <netinet/tcp.h>
-
-#include <vppinfra/types.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/pool.h>
-
-#include <libvcl-ldpreload/vcom_socket.h>
-#include <libvcl-ldpreload/vcom_socket_wrapper.h>
-#include <libvcl-ldpreload/vcom.h>
-
-#include <uri/vppcom.h>
-
-
-/*
- * VCOM_SOCKET Private definitions and functions.
- */
-
-typedef struct vcom_socket_main_t_
-{
- u8 init;
-
- /* vcom_socket pool */
- vcom_socket_t *vsockets;
-
- /* Hash table for socketidx to fd mapping */
- uword *sockidx_by_fd;
-
- /* vcom_epoll pool */
- vcom_epoll_t *vepolls;
-
- /* Hash table for epollidx to epfd mapping */
- uword *epollidx_by_epfd;
-
-
- /* common epitem poll for all epfd */
- /* TBD: epitem poll per epfd */
- /* vcom_epitem pool */
- vcom_epitem_t *vepitems;
-
- /* Hash table for epitemidx to epfdfd mapping */
- uword *epitemidx_by_epfdfd;
-
- /* Hash table - key:epfd, value:vec of epitemidx */
- uword *epitemidxs_by_epfd;
- /* Hash table - key:fd, value:vec of epitemidx */
- uword *epitemidxs_by_fd;
-
-} vcom_socket_main_t;
-
-vcom_socket_main_t vcom_socket_main;
-
-
-static int
-vcom_socket_open_socket (int domain, int type, int protocol)
-{
- int rv = -1;
-
- /* handle domains implemented by vpp */
- switch (domain)
- {
- case AF_INET:
- case AF_INET6:
- /* get socket type and
- * handle the socket types supported by vpp */
- switch (type & ~(SOCK_CLOEXEC | SOCK_NONBLOCK))
- {
- case SOCK_STREAM:
- case SOCK_DGRAM:
- /* the type argument serves a second purpose,
- * in addition to specifying a socket type,
- * it may include the bitwise OR of any of
- * SOCK_NONBLOCK and SOCK_CLOEXEC, to modify
- * the behavior of socket. */
- rv = libc_socket (domain, type, protocol);
- if (rv == -1)
- rv = -errno;
- break;
-
- default:
- break;
- }
-
- break;
-
- default:
- break;
- }
-
- return rv;
-}
-
-static int
-vcom_socket_open_epoll (int flags)
-{
- int rv = -1;
-
- if (flags < 0)
- {
- return -EINVAL;
- }
- if (flags && (flags & ~EPOLL_CLOEXEC))
- {
- return -EINVAL;
- }
-
- /* flags can be either zero or EPOLL_CLOEXEC */
- rv = libc_epoll_create1 (flags);
- if (rv == -1)
- rv = -errno;
-
- return rv;
-}
-
-static int
-vcom_socket_close_socket (int fd)
-{
- int rv;
-
- rv = libc_close (fd);
- if (rv == -1)
- rv = -errno;
-
- return rv;
-}
-
-static int
-vcom_socket_close_epoll (int epfd)
-{
- int rv;
-
- rv = libc_close (epfd);
- if (rv == -1)
- rv = -errno;
-
- return rv;
-}
-
-/*
- * Public API functions
- */
-
-
-int
-vcom_socket_is_vcom_fd (int fd)
-{
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, fd);
-
- if (p)
- {
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (vsock && vsock->type == SOCKET_TYPE_VPPCOM_BOUND)
- return 1;
- }
- return 0;
-}
-
-int
-vcom_socket_is_vcom_epfd (int epfd)
-{
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_epoll_t *vepoll;
-
- p = hash_get (vsm->epollidx_by_epfd, epfd);
-
- if (p)
- {
- vepoll = pool_elt_at_index (vsm->vepolls, p[0]);
- if (vepoll && vepoll->type == EPOLL_TYPE_VPPCOM_BOUND)
- return 1;
- }
- return 0;
-}
-
-static inline int
-vcom_socket_get_sid (int fd)
-{
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, fd);
-
- if (p)
- {
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (vsock && vsock->type == SOCKET_TYPE_VPPCOM_BOUND)
- return vsock->sid;
- }
- return INVALID_SESSION_ID;
-}
-
-static inline int
-vcom_socket_get_vep_idx (int epfd)
-{
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_epoll_t *vepoll;
-
- p = hash_get (vsm->epollidx_by_epfd, epfd);
-
- if (p)
- {
- vepoll = pool_elt_at_index (vsm->vepolls, p[0]);
- if (vepoll && vepoll->type == EPOLL_TYPE_VPPCOM_BOUND)
- return vepoll->vep_idx;
- }
- return INVALID_VEP_IDX;
-}
-
-static inline int
-vcom_socket_get_sid_and_vsock (int fd, vcom_socket_t ** vsockp)
-{
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, fd);
-
- if (p)
- {
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (vsock && vsock->type == SOCKET_TYPE_VPPCOM_BOUND)
- {
- *vsockp = vsock;
- return vsock->sid;
- }
- }
- return INVALID_SESSION_ID;
-}
-
-static inline int
-vcom_socket_get_vep_idx_and_vepoll (int epfd, vcom_epoll_t ** vepollp)
-{
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_epoll_t *vepoll;
-
- p = hash_get (vsm->epollidx_by_epfd, epfd);
-
- if (p)
- {
- vepoll = pool_elt_at_index (vsm->vepolls, p[0]);
- if (vepoll && vepoll->type == EPOLL_TYPE_VPPCOM_BOUND)
- {
- *vepollp = vepoll;
- return vepoll->vep_idx;
- }
- }
- return INVALID_VEP_IDX;
-}
-
-
-static int
-vcom_socket_close_vepoll (int epfd)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_epoll_t *vepoll;
-
- p = hash_get (vsm->epollidx_by_epfd, epfd);
- if (!p)
- return -EBADF;
-
- vepoll = pool_elt_at_index (vsm->vepolls, p[0]);
- if (!vepoll)
- return -EBADF;
-
- if (vepoll->type != EPOLL_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (vepoll->count)
- {
- if (!vepoll->close)
- {
- vepoll->close = 1;
- return 0;
- }
- else
- {
- return -EBADF;
- }
- }
-
- /* count is zero */
- rv = vppcom_session_close (vepoll->vep_idx);
- rv = vcom_socket_close_epoll (vepoll->epfd);
-
- vepoll_init (vepoll);
- hash_unset (vsm->epollidx_by_epfd, epfd);
- pool_put (vsm->vepolls, vepoll);
-
- return rv;
-}
-
-static int
-vcom_socket_close_vsock (int fd)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- vcom_epitem_t *vepitem;
-
- i32 *vepitemidxs = 0;
- i32 *vepitemidxs_var = 0;
-
- p = hash_get (vsm->sockidx_by_fd, fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- rv = vppcom_session_close (vsock->sid);
- rv = vcom_socket_close_socket (vsock->fd);
-
- vsocket_init (vsock);
- hash_unset (vsm->sockidx_by_fd, fd);
- pool_put (vsm->vsockets, vsock);
-
- /*
- * NOTE:
- * Before calling close(), user should remove
- * this fd from the epoll-set of all epoll instances,
- * otherwise resource(epitems) leaks ensues.
- */
-
- /*
- * 00. close all epoll instances that are marked as "close"
- * of which this fd is the "last" remaining member.
- * 01. epitems associated with this fd are intentionally
- * not removed, see NOTE: above.
- * */
-
- /* does this fd participate in epoll */
- p = hash_get (vsm->epitemidxs_by_fd, fd);
- if (p)
- {
- vepitemidxs = *(i32 **) p;
- vec_foreach (vepitemidxs_var, vepitemidxs)
- {
- vepitem = pool_elt_at_index (vsm->vepitems, vepitemidxs_var[0]);
- if (vepitem && vepitem->fd == fd &&
- vepitem->type == FD_TYPE_VCOM_SOCKET)
- {
- i32 vep_idx;
- vcom_epoll_t *vepoll;
- if ((vep_idx =
- vcom_socket_get_vep_idx_and_vepoll (vepitem->epfd,
- &vepoll)) !=
- INVALID_VEP_IDX)
- {
- if (vepoll->close)
- {
- if (vepoll->count == 1)
- {
- /*
- * force count to zero and
- * close this epoll instance
- * */
- vepoll->count = 0;
- vcom_socket_close_vepoll (vepoll->epfd);
- }
- else
- {
- vepoll->count -= 1;
- }
- }
- }
- }
-
- }
- }
-
- return rv;
-}
-
-int
-vcom_socket_close (int __fd)
-{
- int rv;
-
- if (vcom_socket_is_vcom_fd (__fd))
- {
- rv = vcom_socket_close_vsock (__fd);
- }
- else if (vcom_socket_is_vcom_epfd (__fd))
- {
- rv = vcom_socket_close_vepoll (__fd);
- }
- else
- {
- rv = -EBADF;
- }
-
- return rv;
-}
-
-ssize_t
-vcom_socket_read (int __fd, void *__buf, size_t __nbytes)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (!__buf || __nbytes < 0)
- {
- return -EINVAL;
- }
-
- rv = vcom_fcntl (__fd, F_GETFL, 0);
- if (rv < 0)
- {
- return rv;
-
- }
-
- /* is blocking */
- if (!(rv & O_NONBLOCK))
- {
- do
- {
- rv = vppcom_session_read (vsock->sid, __buf, __nbytes);
- }
- while (rv == -EAGAIN || rv == -EWOULDBLOCK);
- return rv;
- }
- /* The file descriptor refers to a socket and has been
- * marked nonblocking(O_NONBLOCK) and the read would
- * block.
- * */
- /* is non blocking */
- rv = vppcom_session_read (vsock->sid, __buf, __nbytes);
- return rv;
-}
-
-ssize_t
-vcom_socket_readv (int __fd, const struct iovec * __iov, int __iovcnt)
-{
- int rv;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
- ssize_t total = 0, len = 0;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (__iov == 0 || __iovcnt == 0 || __iovcnt > IOV_MAX)
- return -EINVAL;
-
- /* Sanity check */
- for (int i = 0; i < __iovcnt; ++i)
- {
- if (SSIZE_MAX - len < __iov[i].iov_len)
- return -EINVAL;
- len += __iov[i].iov_len;
- }
-
- rv = vcom_fcntl (__fd, F_GETFL, 0);
- if (rv < 0)
- {
- return rv;
- }
-
- /* is blocking */
- if (!(rv & O_NONBLOCK))
- {
- do
- {
- for (int i = 0; i < __iovcnt; ++i)
- {
- rv = vppcom_session_read (vsock->sid, __iov[i].iov_base,
- __iov[i].iov_len);
- if (rv < 0)
- break;
- else
- {
- total += rv;
- if (rv < __iov[i].iov_len)
- /* Read less than buffer provided, no point to continue */
- break;
- }
- }
- }
- while ((rv == -EAGAIN || rv == -EWOULDBLOCK) && total == 0);
- return total;
- }
-
- /* is non blocking */
- for (int i = 0; i < __iovcnt; ++i)
- {
- rv = vppcom_session_read (vsock->sid, __iov[i].iov_base,
- __iov[i].iov_len);
- if (rv < 0)
- {
- if (total > 0)
- break;
- else
- {
- errno = rv;
- return rv;
- }
- }
- else
- {
- total += rv;
- if (rv < __iov[i].iov_len)
- /* Read less than buffer provided, no point to continue */
- break;
- }
- }
- return total;
-}
-
-ssize_t
-vcom_socket_write (int __fd, const void *__buf, size_t __n)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (!__buf || __n < 0)
- {
- return -EINVAL;
- }
-
- rv = vppcom_session_write (vsock->sid, (void *) __buf, __n);
- return rv;
-}
-
-ssize_t
-vcom_socket_writev (int __fd, const struct iovec * __iov, int __iovcnt)
-{
- int rv = -1;
- ssize_t total = 0;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (__iov == 0 || __iovcnt == 0 || __iovcnt > IOV_MAX)
- return -EINVAL;
-
- for (int i = 0; i < __iovcnt; ++i)
- {
- rv = vppcom_session_write (vsock->sid, __iov[i].iov_base,
- __iov[i].iov_len);
- if (rv < 0)
- {
- if (total > 0)
- break;
- else
- return rv;
- }
- else
- total += rv;
- }
- return total;
-}
-
-/*
- * RETURN: 0 - invalid cmd
- * 1 - cmd not handled by vcom and vppcom
- * 2 - cmd handled by vcom socket resource
- * 3 - cmd handled by vppcom
- * */
-/* TBD: incomplete list of cmd */
-static int
-vcom_socket_check_fcntl_cmd (int __cmd)
-{
- switch (__cmd)
- {
- /*cmd not handled by vcom and vppcom */
- /* Fallthrough */
- case F_DUPFD:
- case F_DUPFD_CLOEXEC:
- return 1;
-
- /* cmd handled by vcom socket resource */
- /* Fallthrough */
- case F_GETFD:
- case F_SETFD:
- case F_GETLK:
- case F_SETLK:
- case F_SETLKW:
- case F_GETOWN:
- case F_SETOWN:
- return 2;
-
- /* cmd handled by vcom and vppcom */
- case F_SETFL:
- case F_GETFL:
- return 3;
-
- /* cmd not handled by vcom and vppcom */
- default:
- return 1;
- }
- return 0;
-}
-
-static inline int
-vcom_session_fcntl_va (int __sid, int __cmd, va_list __ap)
-{
- int flags = va_arg (__ap, int);
- int rv = -EOPNOTSUPP;
- uint32_t size;
-
- size = sizeof (flags);
- if (__cmd == F_SETFL)
- {
- rv = vppcom_session_attr (__sid, VPPCOM_ATTR_SET_FLAGS, &flags, &size);
- }
- else if (__cmd == F_GETFL)
- {
- rv = vppcom_session_attr (__sid, VPPCOM_ATTR_GET_FLAGS, &flags, &size);
- if (rv == VPPCOM_OK)
- rv = flags;
- }
-
- return rv;
-}
-
-int
-vcom_socket_fcntl_va (int __fd, int __cmd, va_list __ap)
-{
- int rv = -EBADF;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- switch (vcom_socket_check_fcntl_cmd (__cmd))
- {
- /* invalid cmd */
- case 0:
- rv = -EBADF;
- break;
- /*cmd not handled by vcom and vppcom */
- case 1:
- rv = libc_vfcntl (vsock->fd, __cmd, __ap);
- break;
- /* cmd handled by vcom socket resource */
- case 2:
- rv = libc_vfcntl (vsock->fd, __cmd, __ap);
- break;
- /* cmd handled by vppcom */
- case 3:
- rv = vcom_session_fcntl_va (vsock->sid, __cmd, __ap);
- break;
-
- default:
- rv = -EINVAL;
- break;
- }
-
- return rv;
-}
-
-/*
- * RETURN: 0 - invalid cmd
- * 1 - cmd not handled by vcom and vppcom
- * 2 - cmd handled by vcom socket resource
- * 3 - cmd handled by vppcom
- */
-static int
-vcom_socket_check_ioctl_cmd (unsigned long int __cmd)
-{
- int rc;
-
- switch (__cmd)
- {
- /* cmd handled by vppcom */
- case FIONREAD:
- rc = 3;
- break;
-
- /* cmd not handled by vcom and vppcom */
- default:
- rc = 1;
- break;
- }
- return rc;
-}
-
-static inline int
-vcom_session_ioctl_va (int __sid, int __cmd, va_list __ap)
-{
- int rv;
-
- if (__cmd == FIONREAD)
- rv = vppcom_session_attr (__sid, VPPCOM_ATTR_GET_NREAD, 0, 0);
- else
- rv = -EOPNOTSUPP;
- return rv;
-}
-
-int
-vcom_socket_ioctl_va (int __fd, unsigned long int __cmd, va_list __ap)
-{
- int rv = -EBADF;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- switch (vcom_socket_check_ioctl_cmd (__cmd))
- {
- /* Not supported cmd */
- case 0:
- rv = -EOPNOTSUPP;
- break;
-
- /* cmd not handled by vcom and vppcom */
- case 1:
- rv = libc_vioctl (vsock->fd, __cmd, __ap);
- break;
-
- /* cmd handled by vcom socket resource */
- case 2:
- rv = libc_vioctl (vsock->fd, __cmd, __ap);
- break;
-
- /* cmd handled by vppcom */
- case 3:
- rv = vcom_session_ioctl_va (vsock->sid, __cmd, __ap);
- break;
-
- default:
- rv = -EINVAL;
- break;
- }
-
- return rv;
-}
-
-static inline int
-vcom_socket_fds_2_sid_fds (
- /* dest */
- int *vcom_nsid_fds,
- fd_set * __restrict vcom_rd_sid_fds,
- fd_set * __restrict vcom_wr_sid_fds,
- fd_set * __restrict vcom_ex_sid_fds,
- /* src */
- int vcom_nfds,
- fd_set * __restrict vcom_readfds,
- fd_set * __restrict vcom_writefds,
- fd_set * __restrict vcom_exceptfds)
-{
- int rv = 0;
- int fd;
- int sid;
- /* invalid max_sid is -1 */
- int max_sid = -1;
- int nsid = 0;
-
- /*
- * set sid in sid sets corresponding to fd's in fd sets
- * compute nsid and vcom_nsid_fds from sid sets
- */
-
- for (fd = 0; fd < vcom_nfds; fd++)
- {
- /*
- * F fd set, src
- * S sid set, dest
- */
-#define _(S,F) \
- if ((F) && (S) && FD_ISSET (fd, (F))) \
- { \
- sid = vcom_socket_get_sid (fd); \
- if (sid != INVALID_SESSION_ID) \
- { \
- FD_SET (sid, (S)); \
- if (sid > max_sid) \
- { \
- max_sid = sid; \
- } \
- ++nsid; \
- } \
- else \
- { \
- rv = -EBADFD; \
- goto done; \
- } \
- }
-
-
- _(vcom_rd_sid_fds, vcom_readfds);
- _(vcom_wr_sid_fds, vcom_writefds);
- _(vcom_ex_sid_fds, vcom_exceptfds);
-#undef _
- }
-
- *vcom_nsid_fds = max_sid != -1 ? max_sid + 1 : 0;
- rv = nsid;
-
-done:
- return rv;
-}
-
-/*
- * PRE: 00. sid sets were derived from fd sets
- * 01. sid sets were updated with sids that actually changed
- * status
- * 02. fd sets still has watched fds
- *
- * This function will modify in place fd sets to indicate which fd's
- * actually changed status(inferred from sid sets)
- */
-static inline int
-vcom_socket_sid_fds_2_fds (
- /* dest */
- int *new_vcom_nfds,
- int vcom_nfds,
- fd_set * __restrict vcom_readfds,
- fd_set * __restrict vcom_writefds,
- fd_set * __restrict vcom_exceptfds,
- /* src */
- int vcom_nsid_fds,
- fd_set * __restrict vcom_rd_sid_fds,
- fd_set * __restrict vcom_wr_sid_fds,
- fd_set * __restrict vcom_ex_sid_fds)
-{
- int rv = 0;
- int fd;
- int sid;
- /* invalid max_fd is -1 */
- int max_fd = -1;
- int nfd = 0;
-
-
- /*
- * modify in place fd sets to indicate which fd's
- * actually changed status(inferred from sid sets)
- */
- for (fd = 0; fd < vcom_nfds; fd++)
- {
- /*
- * F fd set, dest
- * S sid set, src
- */
-#define _(S,F) \
- if ((F) && (S) && FD_ISSET (fd, (F))) \
- { \
- sid = vcom_socket_get_sid (fd); \
- if (sid != INVALID_SESSION_ID) \
- { \
- if (!FD_ISSET (sid, (S))) \
- { \
- FD_CLR(fd, (F)); \
- } \
- } \
- else \
- { \
- rv = -EBADFD; \
- goto done; \
- } \
- }
-
-
- _(vcom_rd_sid_fds, vcom_readfds);
- _(vcom_wr_sid_fds, vcom_writefds);
- _(vcom_ex_sid_fds, vcom_exceptfds);
-#undef _
- }
-
- /*
- * compute nfd and new_vcom_nfds from fd sets
- */
- for (fd = 0; fd < vcom_nfds; fd++)
- {
-
-#define _(F) \
- if ((F) && FD_ISSET (fd, (F))) \
- { \
- if (fd > max_fd) \
- { \
- max_fd = fd; \
- } \
- ++nfd; \
- }
-
-
- _(vcom_readfds);
- _(vcom_writefds);
- _(vcom_exceptfds);
-#undef _
-
- }
-
- *new_vcom_nfds = max_fd != -1 ? max_fd + 1 : 0;
- rv = nfd;
-
-done:
- return rv;
-}
-
-/*
- * PRE:
- * vom_socket_select is always called with
- * timeout->tv_sec and timeout->tv_usec set to zero.
- * hence vppcom_select return immediately.
- */
-/*
- * TBD: do{body;} while(timeout conditional); timeout loop
- */
-int
-vcom_socket_select (int vcom_nfds, fd_set * __restrict vcom_readfds,
- fd_set * __restrict vcom_writefds,
- fd_set * __restrict vcom_exceptfds,
- struct timeval *__restrict timeout)
-{
- static unsigned long vcom_nsid_fds = 0;
- int vcom_nsid = 0;
- int rv = -EBADF;
- pid_t pid = getpid ();
-
- int new_vcom_nfds = 0;
- int new_vcom_nfd = 0;
-
- /* vcom sid fds */
- fd_set vcom_rd_sid_fds;
- fd_set vcom_wr_sid_fds;
- fd_set vcom_ex_sid_fds;
-
- /* in seconds eg. 3.123456789 seconds */
- double time_to_wait = (double) 0;
-
- /* validate inputs */
- if (vcom_nfds < 0)
- {
- return -EINVAL;
- }
-
- /* convert timeval timeout to double time_to_wait */
- if (timeout)
- {
- if (timeout->tv_sec == 0 && timeout->tv_usec == 0)
- {
- /* polling: vppcom_select returns immediately */
- time_to_wait = (double) 0;
- }
- else
- {
- /*TBD: use timeval api */
- time_to_wait = (double) timeout->tv_sec +
- (double) timeout->tv_usec / (double) 1000000 +
- (double) (timeout->tv_usec % 1000000) / (double) 1000000;
- }
- }
- else
- {
- /*
- * no timeout: vppcom_select can block indefinitely
- * waiting for a file descriptor to become ready
- * */
- /* set to a phantom value */
- time_to_wait = ~0;
- }
-
- /* zero the sid_sets */
- /*
- * F fd set
- * S sid set
- */
-#define _(S,F) \
- if ((F)) \
- { \
- FD_ZERO ((S)); \
- }
-
-
- _(&vcom_rd_sid_fds, vcom_readfds);
- _(&vcom_wr_sid_fds, vcom_writefds);
- _(&vcom_ex_sid_fds, vcom_exceptfds);
-#undef _
-
- if (vcom_nfds == 0)
- {
- if (time_to_wait > 0)
- {
- if (VCOM_DEBUG > 0)
- fprintf (stderr,
- "[%d] vcom_socket_select called to "
- "emulate delay_ns()!\n", pid);
- rv = vppcom_select (0, NULL, NULL, NULL, time_to_wait);
- }
- else
- {
- fprintf (stderr, "[%d] vcom_socket_select called vcom_nfds = 0 "
- "and invalid time_to_wait (%f)!\n", pid, time_to_wait);
- }
- return 0;
- }
-
- /* populate read, write and except sid_sets */
- vcom_nsid = vcom_socket_fds_2_sid_fds (
- /* dest */
- vcom_readfds || vcom_writefds
- || vcom_exceptfds ? (int *)
- &vcom_nsid_fds : NULL,
- vcom_readfds ? &vcom_rd_sid_fds :
- NULL,
- vcom_writefds ? &vcom_wr_sid_fds :
- NULL,
- vcom_exceptfds ? &vcom_ex_sid_fds :
- NULL,
- /* src */
- vcom_nfds,
- vcom_readfds,
- vcom_writefds, vcom_exceptfds);
- if (vcom_nsid < 0)
- {
- return vcom_nsid;
- }
- if (vcom_nsid_fds < 0)
- {
- return -EINVAL;
- }
-
- rv = vppcom_select (vcom_nsid_fds,
- vcom_readfds ? (unsigned long *) &vcom_rd_sid_fds :
- NULL,
- vcom_writefds ? (unsigned long *) &vcom_wr_sid_fds :
- NULL,
- vcom_exceptfds ? (unsigned long *) &vcom_ex_sid_fds :
- NULL, time_to_wait);
- if (VCOM_DEBUG > 2)
- fprintf (stderr, "[%d] called vppcom_select(): "
- "'%04d'='%04d'\n", pid, rv, (int) vcom_nsid_fds);
-
- /* check if any file descriptors changed status */
- if (rv > 0)
- {
- /*
- * on exit, sets are modified in place to indicate which
- * file descriptors actually changed status
- * */
-
- /*
- * comply with pre-condition
- * do not clear vcom fd sets befor calling
- * vcom_socket_sid_fds_2_fds
- */
- new_vcom_nfd = vcom_socket_sid_fds_2_fds (
- /* dest */
- &new_vcom_nfds,
- vcom_nfds,
- vcom_readfds,
- vcom_writefds,
- vcom_exceptfds,
- /* src */
- vcom_nsid_fds,
- vcom_readfds ?
- &vcom_rd_sid_fds : NULL,
- vcom_writefds ?
- &vcom_wr_sid_fds : NULL,
- vcom_exceptfds ?
- &vcom_ex_sid_fds : NULL);
- if (new_vcom_nfd < 0)
- {
- return new_vcom_nfd;
- }
- if (new_vcom_nfds < 0)
- {
- return -EINVAL;
- }
- rv = new_vcom_nfd;
- }
- return rv;
-}
-
-
-int
-vcom_socket_socket (int __domain, int __type, int __protocol)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- vcom_socket_t *vsock;
-
- i32 fd;
- i32 sid;
- i32 sockidx;
- u8 is_nonblocking = __type & SOCK_NONBLOCK ? 1 : 0;
- int type = __type & ~(SOCK_NONBLOCK | SOCK_CLOEXEC);
-
- fd = vcom_socket_open_socket (__domain, __type, __protocol);
- if (fd < 0)
- {
- rv = fd;
- goto out;
- }
-
- sid = vppcom_session_create (VPPCOM_VRF_DEFAULT,
- (type == SOCK_DGRAM) ?
- VPPCOM_PROTO_UDP : VPPCOM_PROTO_TCP,
- is_nonblocking);
- if (sid < 0)
- {
- rv = sid;
- goto out_close_socket;
- }
-
- pool_get (vsm->vsockets, vsock);
- vsocket_init (vsock);
-
- sockidx = vsock - vsm->vsockets;
- hash_set (vsm->sockidx_by_fd, fd, sockidx);
-
- vsocket_set (vsock, fd, sid, SOCKET_TYPE_VPPCOM_BOUND);
- return fd;
-
-out_close_socket:
- vcom_socket_close_socket (fd);
-out:
- return rv;
-}
-
-int
-vcom_socket_socketpair (int __domain, int __type, int __protocol,
- int __fds[2])
-{
-/* TBD: */
- return 0;
-}
-
-int
-vcom_socket_bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- vppcom_endpt_t ep;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (!__addr)
- {
- return -EINVAL;
- }
-
- ep.vrf = VPPCOM_VRF_DEFAULT;
- switch (__addr->sa_family)
- {
- case AF_INET:
- if (__len != sizeof (struct sockaddr_in))
- {
- return -EINVAL;
- }
- ep.is_ip4 = VPPCOM_IS_IP4;
- ep.ip = (u8 *) & ((const struct sockaddr_in *) __addr)->sin_addr;
- ep.port = (u16) ((const struct sockaddr_in *) __addr)->sin_port;
- break;
-
- case AF_INET6:
- if (__len != sizeof (struct sockaddr_in6))
- {
- return -EINVAL;
- }
- ep.is_ip4 = VPPCOM_IS_IP6;
- ep.ip = (u8 *) & ((const struct sockaddr_in6 *) __addr)->sin6_addr;
- ep.port = (u16) ((const struct sockaddr_in6 *) __addr)->sin6_port;
- break;
-
- default:
- return -1;
- break;
- }
-
- rv = vppcom_session_bind (vsock->sid, &ep);
- return rv;
-}
-
-static inline int
-vcom_session_getsockname (int sid, vppcom_endpt_t * ep)
-{
- int rv;
- uint32_t size = sizeof (*ep);
-
- rv = vppcom_session_attr (sid, VPPCOM_ATTR_GET_LCL_ADDR, ep, &size);
- return rv;
-}
-
-int
-vcom_socket_getsockname (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __len)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (!__addr || !__len)
- return -EFAULT;
-
- if (*__len < 0)
- {
- return -EINVAL;
- }
-
- vppcom_endpt_t ep;
- ep.ip = (u8 *) & ((const struct sockaddr_in *) __addr)->sin_addr;
- rv = vcom_session_getsockname (vsock->sid, &ep);
- if (rv == 0)
- {
- if (ep.vrf == VPPCOM_VRF_DEFAULT)
- {
- __addr->sa_family = ep.is_ip4 == VPPCOM_IS_IP4 ? AF_INET : AF_INET6;
- switch (__addr->sa_family)
- {
- case AF_INET:
- ((struct sockaddr_in *) __addr)->sin_port = ep.port;
- *__len = sizeof (struct sockaddr_in);
- break;
-
- case AF_INET6:
- ((struct sockaddr_in6 *) __addr)->sin6_port = ep.port;
- *__len = sizeof (struct sockaddr_in6);
- break;
-
- default:
- break;
- }
- }
- }
-
- return rv;
-}
-
-int
-vcom_socket_connect (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- vppcom_endpt_t ep;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (p)
- {
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
-
- ep.vrf = VPPCOM_VRF_DEFAULT;
- switch (__addr->sa_family)
- {
- case AF_INET:
- ep.is_ip4 = VPPCOM_IS_IP4;
- ep.ip =
- (uint8_t *) & ((const struct sockaddr_in *) __addr)->sin_addr;
- ep.port =
- (uint16_t) ((const struct sockaddr_in *) __addr)->sin_port;
- break;
-
- case AF_INET6:
- ep.is_ip4 = VPPCOM_IS_IP6;
- ep.ip =
- (uint8_t *) & ((const struct sockaddr_in6 *) __addr)->sin6_addr;
- ep.port =
- (uint16_t) ((const struct sockaddr_in6 *) __addr)->sin6_port;
- break;
-
- default:
- return -1;
- break;
- }
-
- rv = vppcom_session_connect (vsock->sid, &ep);
- }
- return rv;
-}
-
-static inline int
-vcom_session_getpeername (int sid, vppcom_endpt_t * ep)
-{
- int rv;
- uint32_t size = sizeof (*ep);
-
- rv = vppcom_session_attr (sid, VPPCOM_ATTR_GET_PEER_ADDR, ep, &size);
- return rv;
-}
-
-int
-vcom_socket_getpeername (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __len)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (!__addr || !__len)
- return -EFAULT;
-
- if (*__len < 0)
- {
- return -EINVAL;
- }
-
- vppcom_endpt_t ep;
- ep.ip = (u8 *) & ((const struct sockaddr_in *) __addr)->sin_addr;
- rv = vcom_session_getpeername (vsock->sid, &ep);
- if (rv == 0)
- {
- if (ep.vrf == VPPCOM_VRF_DEFAULT)
- {
- __addr->sa_family = ep.is_ip4 == VPPCOM_IS_IP4 ? AF_INET : AF_INET6;
- switch (__addr->sa_family)
- {
- case AF_INET:
- ((struct sockaddr_in *) __addr)->sin_port = ep.port;
- *__len = sizeof (struct sockaddr_in);
- break;
-
- case AF_INET6:
- ((struct sockaddr_in6 *) __addr)->sin6_port = ep.port;
- *__len = sizeof (struct sockaddr_in6);
- break;
-
- default:
- break;
- }
- }
- }
-
- return rv;
-}
-
-ssize_t
-vcom_socket_send (int __fd, const void *__buf, size_t __n, int __flags)
-{
- return vcom_socket_sendto (__fd, __buf, __n, __flags, NULL, 0);
-}
-
-ssize_t
-vcom_socket_recv (int __fd, void *__buf, size_t __n, int __flags)
-{
- int rv = -1;
- rv = vcom_socket_recvfrom (__fd, __buf, __n, __flags, NULL, 0);
- return rv;
-}
-
-/*
- * RETURN 1 if __fd is (SOCK_STREAM, SOCK_SEQPACKET),
- * 0 otherwise
- * */
-int
-vcom_socket_is_connection_mode_socket (int __fd)
-{
- int rv = -1;
- /* TBD define new vppcom api */
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- int type;
- socklen_t optlen;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
-
- if (p)
- {
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (vsock && vsock->type == SOCKET_TYPE_VPPCOM_BOUND)
- {
- optlen = sizeof (type);
- rv = libc_getsockopt (__fd, SOL_SOCKET, SO_TYPE, &type, &optlen);
- if (rv != 0)
- {
- return 0;
- }
- /* get socket type */
- switch (type & ~(SOCK_CLOEXEC | SOCK_NONBLOCK))
- {
- case SOCK_STREAM:
- case SOCK_SEQPACKET:
- return 1;
- break;
-
- default:
- return 0;
- break;
- }
- }
- }
- return 0;
-}
-
-static inline ssize_t
-vcom_session_sendto (int __sid, void *__buf, size_t __n,
- int __flags, __CONST_SOCKADDR_ARG __addr,
- socklen_t __addr_len)
-{
- int rv = -1;
- /* TBD add new vpp api */
- /* TBD add flags parameter */
- rv = vppcom_session_write (__sid, (void *) __buf, (int) __n);
- return rv;
-}
-
-ssize_t
-vcom_socket_sendto (int __fd, const void *__buf, size_t __n,
- int __flags, __CONST_SOCKADDR_ARG __addr,
- socklen_t __addr_len)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if ((vsock->type != SOCKET_TYPE_VPPCOM_BOUND) || !__buf || __n < 0)
- {
- return -EINVAL;
- }
-
- if (vcom_socket_is_connection_mode_socket (__fd))
- {
- /* ignore __addr and _addr_len */
- /* and EISCONN may be returned when they are not NULL and 0 */
- if ((__addr != NULL) || (__addr_len != 0))
- {
- return -EISCONN;
- }
- }
- else
- {
- if (!__addr || __addr_len < 0)
- {
- return -EDESTADDRREQ;
- }
- /* not a vppcom supported address family */
- if ((__addr->sa_family != AF_INET) || (__addr->sa_family != AF_INET6))
- {
- return -EINVAL;
- }
- }
-
- rv = vcom_session_sendto (vsock->sid, (void *) __buf, (int) __n,
- __flags, __addr, __addr_len);
- return rv;
-}
-
-static inline ssize_t
-vcom_session_recvfrom (int __sid, void *__restrict __buf, size_t __n,
- int __flags, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len)
-{
- int rv = -1;
-
- /* TBD add flags parameter */
- rv = vppcom_session_read (__sid, __buf, __n);
- return rv;
-}
-
-ssize_t
-vcom_socket_recvfrom (int __fd, void *__restrict __buf, size_t __n,
- int __flags, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if ((vsock->type != SOCKET_TYPE_VPPCOM_BOUND) ||
- !__buf || __n < 0 || !__addr || !__addr_len || (__addr_len < 0))
- {
- return -EINVAL;
- }
-
- rv = vcom_session_recvfrom (vsock->sid, __buf, __n,
- __flags, __addr, __addr_len);
- return rv;
-}
-
-/* TBD: move it to vppcom */
-static inline ssize_t
-vcom_session_sendmsg (int __sid, const struct msghdr *__message, int __flags)
-{
- int rv = -1;
- /* rv = vppcom_session_write (__sid, (void *) __message->__buf,
- (int)__n); */
- return rv;
-}
-
-ssize_t
-vcom_socket_sendmsg (int __fd, const struct msghdr * __message, int __flags)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vcom_socket_is_connection_mode_socket (__fd))
- {
- /* ignore __addr and _addr_len */
- /* and EISCONN may be returned when they are not NULL and 0 */
- if ((__message->msg_name != NULL) || (__message->msg_namelen != 0))
- {
- return -EISCONN;
- }
- }
- else
- {
- /* TBD: validate __message->msg_name and __message->msg_namelen
- * and return -EINVAL on validation error
- * */
- ;
- }
-
- rv = vcom_session_sendmsg (vsock->sid, __message, __flags);
-
- return rv;
-}
-
-#ifdef __USE_GNU
-int
-vcom_socket_sendmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags)
-{
-
- /* TBD: define a new vppcom api */
- return 0;
-}
-#endif
-
-/* TBD: move it to vppcom */
-static inline ssize_t
-vcom_session_recvmsg (int __sid, struct msghdr *__message, int __flags)
-{
- int rv = -1;
- /* rv = vppcom_session_read (__sid, (void *) __message->__buf,
- (int)__n); */
- rv = -EOPNOTSUPP;
- return rv;
-}
-
-ssize_t
-vcom_socket_recvmsg (int __fd, struct msghdr * __message, int __flags)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (!__message)
- {
- return -EINVAL;
- }
-
- /* validate __flags */
-
- rv = vcom_session_recvmsg (vsock->sid, __message, __flags);
- return rv;
-}
-
-#ifdef __USE_GNU
-int
-vcom_socket_recvmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags,
- struct timespec *__tmo)
-{
- /* TBD: define a new vppcom api */
- return 0;
-}
-#endif
-
-/* TBD: move it to vppcom */
-static inline int
-vcom_session_get_sockopt (int __sid, int __level, int __optname,
- void *__restrict __optval,
- socklen_t * __restrict __optlen)
-{
- /* 1. for socket level options that are NOT socket attributes
- * and that has corresponding vpp options get from vppcom */
- return 0;
-}
-
-int
-vcom_socket_getsockopt (int __fd, int __level, int __optname,
- void *__restrict __optval,
- socklen_t * __restrict __optlen)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- if (!__optval && !__optlen)
- return -EFAULT;
-
- if (*__optlen < 0)
- {
- return -EINVAL;
- }
-
- switch (__level)
- {
- /* handle options at socket level */
- case SOL_SOCKET:
- switch (__optname)
- {
-/*
- * 1. for socket level options that are socket attributes,
- * get from libc_getsockopt.
- * 2. for socket level options that are NOT socket
- * attributes and that has corresponding vpp options
- * get from vppcom.
- * 3. for socket level options unimplemented
- * return -ENOPROTOOPT */
- case SO_DEBUG:
- case SO_DONTROUTE:
- case SO_BROADCAST:
- case SO_SNDBUF:
- case SO_RCVBUF:
- case SO_REUSEADDR:
- case SO_REUSEPORT:
- case SO_KEEPALIVE:
- case SO_TYPE:
- case SO_PROTOCOL:
- case SO_DOMAIN:
- case SO_ERROR:
- case SO_OOBINLINE:
- case SO_NO_CHECK:
- case SO_PRIORITY:
- case SO_LINGER:
- case SO_BSDCOMPAT:
- case SO_TIMESTAMP:
- case SO_TIMESTAMPNS:
- case SO_TIMESTAMPING:
- case SO_RCVTIMEO:
- case SO_SNDTIMEO:
- case SO_RCVLOWAT:
- case SO_SNDLOWAT:
- case SO_PASSCRED:
- case SO_PEERCRED:
- case SO_PEERNAME:
- case SO_ACCEPTCONN:
- case SO_PASSSEC:
- case SO_PEERSEC:
- case SO_MARK:
- case SO_RXQ_OVFL:
- case SO_WIFI_STATUS:
- case SO_PEEK_OFF:
- case SO_NOFCS:
- case SO_BINDTODEVICE:
- case SO_GET_FILTER:
- case SO_LOCK_FILTER:
- case SO_BPF_EXTENSIONS:
- case SO_SELECT_ERR_QUEUE:
-#ifdef CONFIG_NET_RX_BUSY_POLL
- case SO_BUSY_POLL:
-#endif
- case SO_MAX_PACING_RATE:
- case SO_INCOMING_CPU:
- rv = libc_getsockopt (__fd, __level, __optname, __optval, __optlen);
- if (rv != 0)
- {
- rv = -errno;
- return rv;
- }
- break;
-
- default:
- /* We implement the SO_SNDLOWAT etc to not be settable
- * (1003.1g 7).
- */
- return -ENOPROTOOPT;
- }
-
- break;
-
- default:
- /* 1. handle options that are NOT socket level options,
- * but have corresponding vpp otions. */
- rv = vcom_session_get_sockopt (vsock->sid, __level, __optname,
- __optval, __optlen);
- break;
- }
-
- return rv;
-}
-
-/* TBD: move it to vppcom */
-static inline int
-vcom_session_setsockopt (int __sid, int __level, int __optname,
- const void *__optval, socklen_t __optlen)
-{
- int rv = -EOPNOTSUPP;
-
- switch (__level)
- {
- case SOL_TCP:
- switch (__optname)
- {
- case TCP_KEEPIDLE:
- rv =
- vppcom_session_attr (__sid, VPPCOM_ATTR_SET_TCP_KEEPIDLE, 0, 0);
- break;
- case TCP_KEEPINTVL:
- rv =
- vppcom_session_attr (__sid, VPPCOM_ATTR_SET_TCP_KEEPINTVL, 0, 0);
- break;
- default:
- break;
- }
- break;
- case SOL_IPV6:
- switch (__optname)
- {
- case IPV6_V6ONLY:
- rv = vppcom_session_attr (__sid, VPPCOM_ATTR_SET_V6ONLY, 0, 0);
- break;
- default:
- break;
- }
- break;
- case SOL_SOCKET:
- switch (__optname)
- {
- case SO_KEEPALIVE:
- rv = vppcom_session_attr (__sid, VPPCOM_ATTR_SET_KEEPALIVE, 0, 0);
- break;
- case SO_REUSEADDR:
- rv = vppcom_session_attr (__sid, VPPCOM_ATTR_SET_REUSEADDR, 0, 0);
- break;
- case SO_BROADCAST:
- rv = vppcom_session_attr (__sid, VPPCOM_ATTR_SET_BROADCAST, 0, 0);
- break;
- default:
- break;
- }
- break;
- default:
- break;
- }
-
- return rv;
-}
-
-int
-vcom_socket_setsockopt (int __fd, int __level, int __optname,
- const void *__optval, socklen_t __optlen)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (!p)
- return -EBADF;
-
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- if (!vsock)
- return -ENOTSOCK;
-
- if (vsock->type != SOCKET_TYPE_VPPCOM_BOUND)
- return -EINVAL;
-
- /*
- * Options without arguments
- */
-
- if (__optname == SO_BINDTODEVICE)
- {
- rv = libc_setsockopt (__fd, __level, __optname, __optval, __optlen);
- if (rv != 0)
- {
- rv = -errno;
- }
- return rv;
- }
-
- if (!__optval)
- return -EFAULT;
-
- if ((__optlen < 0) || (__optlen < sizeof (int)))
- return -EINVAL;
-
- switch (__level)
- {
- case SOL_IPV6:
- switch (__optname)
- {
- case IPV6_V6ONLY:
- rv = vcom_session_setsockopt (vsock->sid, __level, __optname,
- __optval, __optlen);
- break;
- default:
- return -EOPNOTSUPP;
- }
- break;
- case SOL_TCP:
- switch (__optname)
- {
- case TCP_NODELAY:
- return 0;
- case TCP_KEEPIDLE:
- case TCP_KEEPINTVL:
- rv = vcom_session_setsockopt (vsock->sid, __level, __optname,
- __optval, __optlen);
- break;
- default:
- return -EOPNOTSUPP;
- }
- break;
- /* handle options at socket level */
- case SOL_SOCKET:
- switch (__optname)
- {
- case SO_REUSEADDR:
- case SO_BROADCAST:
- case SO_KEEPALIVE:
- rv = vcom_session_setsockopt (vsock->sid, __level, __optname,
- __optval, __optlen);
- break;
-
- /*
- * 1. for socket level options that are socket attributes,
- * set it from libc_getsockopt
- * 2. for socket level options that are NOT socket
- * attributes and that has corresponding vpp options
- * set it from vppcom
- * 3. for socket level options unimplemented
- * return -ENOPROTOOPT */
- case SO_DEBUG:
- case SO_DONTROUTE:
- case SO_SNDBUF:
- case SO_RCVBUF:
- case SO_REUSEPORT:
- case SO_TYPE:
- case SO_PROTOCOL:
- case SO_DOMAIN:
- case SO_ERROR:
- case SO_OOBINLINE:
- case SO_NO_CHECK:
- case SO_PRIORITY:
- case SO_LINGER:
- case SO_BSDCOMPAT:
- case SO_TIMESTAMP:
- case SO_TIMESTAMPNS:
- case SO_TIMESTAMPING:
- case SO_RCVTIMEO:
- case SO_SNDTIMEO:
- case SO_RCVLOWAT:
- case SO_SNDLOWAT:
- case SO_PASSCRED:
- case SO_PEERCRED:
- case SO_PEERNAME:
- case SO_ACCEPTCONN:
- case SO_PASSSEC:
- case SO_PEERSEC:
- case SO_MARK:
- case SO_RXQ_OVFL:
- case SO_WIFI_STATUS:
- case SO_PEEK_OFF:
- case SO_NOFCS:
- /*
- * SO_BINDTODEVICE already handled as
- * "Options without arguments" */
- /* case SO_BINDTODEVICE: */
- case SO_GET_FILTER:
- case SO_LOCK_FILTER:
- case SO_BPF_EXTENSIONS:
- case SO_SELECT_ERR_QUEUE:
-#ifdef CONFIG_NET_RX_BUSY_POLL
- case SO_BUSY_POLL:
-#endif
- case SO_MAX_PACING_RATE:
- case SO_INCOMING_CPU:
- rv = libc_setsockopt (__fd, __level, __optname, __optval, __optlen);
- if (rv != 0)
- {
- rv = -errno;
- return rv;
- }
- break;
-
- default:
- /* We implement the SO_SNDLOWAT etc to not be settable
- * (1003.1g 7).
- */
- return -ENOPROTOOPT;
- }
-
- break;
-
- default:
- return -ENOPROTOOPT;
- }
-
- return rv;
-}
-
-int
-vcom_socket_listen (int __fd, int __n)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (p)
- {
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
-
- /* TBD vppcom to accept __n parameter */
- rv = vppcom_session_listen (vsock->sid, __n);
- }
-
- return rv;
-}
-
-static int
-vcom_socket_connected_socket (int __fd, int __sid,
- int *__domain,
- int *__type, int *__protocol, int flags)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- vcom_socket_t *vsock;
-
- i32 fd;
- i32 sockidx;
-
- socklen_t optlen;
-
- optlen = sizeof (*__domain);
- rv = libc_getsockopt (__fd, SOL_SOCKET, SO_DOMAIN, __domain, &optlen);
- if (rv != 0)
- {
- rv = -errno;
- goto out;
- }
-
- optlen = sizeof (*__type);
- rv = libc_getsockopt (__fd, SOL_SOCKET, SO_TYPE, __type, &optlen);
- if (rv != 0)
- {
- rv = -errno;
- goto out;
- }
-
- optlen = sizeof (*__protocol);
- rv = libc_getsockopt (__fd, SOL_SOCKET, SO_PROTOCOL, __protocol, &optlen);
- if (rv != 0)
- {
- rv = -errno;
- goto out;
- }
-
- fd = vcom_socket_open_socket (*__domain, *__type | flags, *__protocol);
- if (fd < 0)
- {
- rv = fd;
- goto out;
- }
-
- pool_get (vsm->vsockets, vsock);
- vsocket_init (vsock);
-
- sockidx = vsock - vsm->vsockets;
- hash_set (vsm->sockidx_by_fd, fd, sockidx);
-
- vsocket_set (vsock, fd, __sid, SOCKET_TYPE_VPPCOM_BOUND);
- return fd;
-
-out:
- return rv;
-}
-
-/* If flag is 0, then accept4() is the same as accept().
- * SOCK_NONBLOCK and SOCK_CLOEXEC can be bitwise ORed in flags
- */
-static int
-vcom_socket_accept_flags (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len, int flags)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- int fd;
- int sid;
- int domain;
- int type;
- int protocol;
-
- uint8_t addr8[sizeof (struct in6_addr)];
- vppcom_endpt_t ep;
-
- ep.ip = addr8;
-
- /* validate flags */
-
- /*
- * for documentation
- * switch (flags)
- * {
- * case 0:
- * case SOCK_NONBLOCK:
- * case SOCK_CLOEXEC:
- * case SOCK_NONBLOCK | SOCK_CLOEXEC:
- * break;
- *
- * default:
- * return -1;
- * }
- */
- /* flags can be 0 or can be bitwise OR
- * of any of SOCK_NONBLOCK and SOCK_CLOEXEC */
-
- if (!(!flags || (flags & (SOCK_NONBLOCK | SOCK_CLOEXEC))))
- {
- /* TBD: return proper error code */
- return -1;
- }
-
- /* TBD: return proper error code */
-
- if (!vcom_socket_is_connection_mode_socket (__fd))
- {
- return -EOPNOTSUPP;
- }
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (p)
- {
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
-
-
- rv = vcom_fcntl (vsock->fd, F_GETFL, 0);
- if (rv < 0)
- {
- return rv;
- }
-
- /* is blocking */
- if (!(rv & O_NONBLOCK))
- {
- /* socket is not marked as nonblocking
- * and no pending connections are present
- * on the queue, accept () blocks the caller
- * until a connection is present.
- */
- rv = vppcom_session_accept (vsock->sid, &ep,
- -1.0 /* wait forever */ );
- }
- else
- {
- /* The file descriptor refers to a socket and has been
- * marked nonblocking(O_NONBLOCK) and the accept would
- * block.
- * */
- /* is non blocking */
- rv = vppcom_session_accept (vsock->sid, &ep, 0);
- /* If the socket is marked nonblocking and
- * no pending connections are present on the
- * queue, accept fails with the error
- * EAGAIN or EWOULDBLOCK
- */
- if (rv == VPPCOM_ETIMEDOUT)
- {
- rv = VPPCOM_EAGAIN;
- }
- }
- if (rv < 0)
- {
- return rv;
- }
-
- sid = rv;
-
- /* create a new connected socket resource and set flags
- * on the new file descriptor.
- * update vsockets and sockidx_by_fd table
- * */
- fd = vcom_socket_connected_socket (__fd, sid,
- &domain, &type, &protocol, flags);
- if (fd < 0)
- {
- return fd;
- }
-
- rv = fd;
-
- /* TBD populate __addr and __addr_len */
- /* TBD: The returned address is truncated if the buffer
- * provided is too small, in this case, __addr_len will
- * return a value greater than was supplied to the call.*/
- if (__addr)
- {
- if (ep.is_cut_thru)
- {
- /* TBD populate __addr and __addr_len */
- switch (domain)
- {
- case AF_INET:
- ((struct sockaddr_in *) __addr)->sin_family = AF_INET;
- ((struct sockaddr_in *) __addr)->sin_port = ep.port;
- memcpy (&((struct sockaddr_in *) __addr)->sin_addr,
- addr8, sizeof (struct in_addr));
- /* TBD: populate __addr_len */
- if (__addr_len)
- {
- *__addr_len = sizeof (struct sockaddr_in);
- }
- break;
-
- case AF_INET6:
- ((struct sockaddr_in6 *) __addr)->sin6_family = AF_INET6;
- ((struct sockaddr_in6 *) __addr)->sin6_port = ep.port;
- memcpy (((struct sockaddr_in6 *) __addr)->sin6_addr.
- __in6_u.__u6_addr8, addr8,
- sizeof (struct in6_addr));
- /* TBD: populate __addr_len */
- if (__addr_len)
- {
- *__addr_len = sizeof (struct sockaddr_in6);
- }
- break;
-
- default:
- return -EAFNOSUPPORT;
- }
- }
- else
- {
- switch (ep.is_ip4)
- {
- case VPPCOM_IS_IP4:
- ((struct sockaddr_in *) __addr)->sin_family = AF_INET;
- ((struct sockaddr_in *) __addr)->sin_port = ep.port;
- memcpy (&((struct sockaddr_in *) __addr)->sin_addr,
- addr8, sizeof (struct in_addr));
- /* TBD: populate __addr_len */
- if (__addr_len)
- {
- *__addr_len = sizeof (struct sockaddr_in);
- }
- break;
-
- case VPPCOM_IS_IP6:
- ((struct sockaddr_in6 *) __addr)->sin6_family = AF_INET6;
- ((struct sockaddr_in6 *) __addr)->sin6_port = ep.port;
- memcpy (((struct sockaddr_in6 *) __addr)->sin6_addr.
- __in6_u.__u6_addr8, addr8,
- sizeof (struct in6_addr));
- /* TBD: populate __addr_len */
- if (__addr_len)
- {
- *__addr_len = sizeof (struct sockaddr_in6);
- }
- break;
-
- default:
- return -EAFNOSUPPORT;
- }
- }
- }
- else
- {
- /* when __addr is NULL, nothing is filled in,
- * in this case, __addr_len is not used,
- * and should also be null
- * */
- if (__addr_len)
- {
- /* TBD: return proper error code */
- return -1;
- }
- }
- }
-
- return rv;
-}
-
-int
-vcom_socket_accept (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len)
-{
- /* set flags to 0 for accept() */
- return vcom_socket_accept_flags (__fd, __addr, __addr_len, 0);
-}
-
-#ifdef __USE_GNU
-int
-vcom_socket_accept4 (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len, int __flags)
-{
- /* SOCK_NONBLOCK and SOCK_CLOEXEC can be bitwise ORed in flags */
- return vcom_socket_accept_flags (__fd, __addr, __addr_len, __flags);
-}
-#endif
-
-/* TBD: move it to vppcom */
-static inline int
-vcom_session_shutdown (int __fd, int __how)
-{
- return 0;
-}
-
-int
-vcom_socket_shutdown (int __fd, int __how)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- uword *p;
- vcom_socket_t *vsock;
-
- p = hash_get (vsm->sockidx_by_fd, __fd);
- if (p)
- {
- vsock = pool_elt_at_index (vsm->vsockets, p[0]);
- switch (__how)
- {
- case SHUT_RD:
- case SHUT_WR:
- case SHUT_RDWR:
- rv = vcom_session_shutdown (vsock->sid, __how);
- return rv;
- break;
-
- default:
- return -EINVAL;
- break;
- }
- }
-
- return rv;
-}
-
-int
-vcom_socket_epoll_create1 (int __flags)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- vcom_epoll_t *vepoll;
-
- i32 epfd;
- i32 vep_idx;
- i32 epollidx;
-
- epfd = vcom_socket_open_epoll (__flags);
- if (epfd < 0)
- {
- rv = epfd;
- goto out;
- }
-
- vep_idx = vppcom_epoll_create ();
- if (vep_idx < 0)
- {
- rv = vep_idx;
- goto out_close_epoll;
- }
-
- pool_get (vsm->vepolls, vepoll);
- vepoll_init (vepoll);
-
- epollidx = vepoll - vsm->vepolls;
- hash_set (vsm->epollidx_by_epfd, epfd, epollidx);
-
- vepoll_set (vepoll, epfd, vep_idx, EPOLL_TYPE_VPPCOM_BOUND, __flags, 0, 0);
-
- return epfd;
-
-out_close_epoll:
- vcom_socket_close_epoll (epfd);
-out:
- return rv;
-}
-
-/*
- * PRE: vppcom_epoll_ctl() is successful
- * free_vepitem_on_del : 0 - no_pool_put, 1 - pool_put
- */
-int
-vcom_socket_ctl_vepitem (int __epfd, int __op, int __fd,
- struct epoll_event *__event,
- i32 vep_idx, vcom_epoll_t * vepoll,
- i32 vfd_id, void *vfd, vcom_fd_type_t type,
- int free_vepitem_on_del)
-{
- int rv = -1;
- vcom_socket_main_t *vsm = &vcom_socket_main;
- vcom_epitem_t *vepitem;
-
- vcom_epitem_key_t epfdfd = {.epfd = __epfd,.fd = __fd };
- uword *p;
- i32 vepitemidx;
-
- i32 *vepitemidxs = 0;
-
- struct epoll_event revent = {.events = 0,.data.fd = INVALID_FD };
-
- i32 vec_idx;
-
- /* perform control operations on the epoll instance */
- switch (__op)
- {
- case EPOLL_CTL_ADD:
- /*
- * supplied file descriptor is already
- * registered with this epoll instance
- * */
- /* vepitem exists */
- p = hash_get (vsm->epitemidx_by_epfdfd, epfdfd.key);
- if (p)
- {
- rv = -EEXIST;
- goto out;
- }
-
- /* add a new vepitem */
- pool_get (vsm->vepitems, vepitem);
- vepitem_init (vepitem);
-
- vepitemidx = vepitem - vsm->vepitems;
- hash_set (vsm->epitemidx_by_epfdfd, epfdfd.key, vepitemidx);
- vepitem_set (vepitem, __epfd, __fd, __fd, __fd, type, *__event, revent);
-
- /* update epitemidxs */
- /* by_epfd */
- p = hash_get (vsm->epitemidxs_by_epfd, __epfd);
- if (!p) /* not exist */
- {
- vepitemidxs = 0;
- vec_add1 (vepitemidxs, vepitemidx);
- hash_set (vsm->epitemidxs_by_epfd, __epfd, vepitemidxs);
- }
- else /* exists */
- {
- vepitemidxs = *(i32 **) p;
- vec_add1 (vepitemidxs, vepitemidx);
- hash_set3 (vsm->epitemidxs_by_epfd, __epfd, vepitemidxs, 0);
- }
- /* update epitemidxs */
- /* by_fd */
- p = hash_get (vsm->epitemidxs_by_fd, __fd);
- if (!p) /* not exist */
- {
- vepitemidxs = 0;
- vec_add1 (vepitemidxs, vepitemidx);
- hash_set (vsm->epitemidxs_by_fd, __fd, vepitemidxs);
- }
- else /* exists */
- {
- vepitemidxs = *(i32 **) p;
- vec_add1 (vepitemidxs, vepitemidx);
- hash_set3 (vsm->epitemidxs_by_fd, __fd, vepitemidxs, 0);
- }
-
- /* increment vepoll fd count by 1 */
- vepoll->count += 1;
-
- rv = 0;
- goto out;
- break;
-
- case EPOLL_CTL_MOD:
- /*
- * supplied file descriptor is not
- * registered with this epoll instance
- * */
- /* vepitem not exist */
- p = hash_get (vsm->epitemidx_by_epfdfd, epfdfd.key);
- if (!p)
- {
- rv = -ENOENT;
- goto out;
- }
- vepitem = pool_elt_at_index (vsm->vepitems, p[0]);
- if (vepitem)
- {
- vepitem->event = *__event;
- vepitem->revent = revent;
- }
-
- rv = 0;
- goto out;
- break;
-
- case EPOLL_CTL_DEL:
- /*
- * supplied file descriptor is not
- * registered with this epoll instance
- * */
- /* vepitem not exist */
- p = hash_get (vsm->epitemidx_by_epfdfd, epfdfd.key);
- if (!p)
- {
- rv = -ENOENT;
- goto out;
- }
- vepitemidx = *(i32 *) p;
- hash_unset (vsm->epitemidx_by_epfdfd, epfdfd.key);
-
- /* update epitemidxs */
- /* by_epfd */
- p = hash_get (vsm->epitemidxs_by_epfd, __epfd);
- if (!p) /* not exist */
- {
- rv = -ENOENT;
- goto out;
- }
- else /* exists */
- {
- vepitemidxs = *(i32 **) p;
- vec_idx = vec_search (vepitemidxs, vepitemidx);
- if (vec_idx != ~0)
- {
- vec_del1 (vepitemidxs, vec_idx);
- if (!vec_len (vepitemidxs))
- {
- vec_free (vepitemidxs);
- hash_unset (vsm->epitemidxs_by_epfd, __epfd);
- }
- }
- }
-
- /* update epitemidxs */
- /* by_fd */
- p = hash_get (vsm->epitemidxs_by_fd, __fd);
- if (!p) /* not exist */
- {
- rv = -ENOENT;
- goto out;
- }
- else /* exists */
- {
- vepitemidxs = *(i32 **) p;
- vec_idx = vec_search (vepitemidxs, vepitemidx);
- if (vec_idx != ~0)
- {
- vec_del1 (vepitemidxs, vec_idx);
- if (!vec_len (vepitemidxs))
- {
- vec_free (vepitemidxs);
- hash_unset (vsm->epitemidxs_by_fd, __fd);
- }
- }
- }
-
- /* pool put vepitem */
- vepitem = pool_elt_at_index (vsm->vepitems, vepitemidx);
- if (free_vepitem_on_del)
- {
- if (!vepitem)
- {
- rv = -ENOENT;
- goto out;
- }
- vepitem_init (vepitem);
- pool_put (vsm->vepitems, vepitem);
- }
- else
- {
- if (!vepitem)
- {
- vepitem_init (vepitem);
- }
- }
-
- /* decrement vepoll fd count by 1 */
- vepoll->count -= 1;
-
- rv = 0;
- goto out;
- break;
-
- default:
- rv = -EINVAL;
- goto out;
- break;
- }
-
-out:
- return rv;
-}
-
-/*
- * PRE: 00. null pointer check on __event
- * 01. all other parameters are validated
- */
-
-static int
-vcom_socket_epoll_ctl_internal (int __epfd, int __op, int __fd,
- struct epoll_event *__event,
- int free_vepitem_on_del)
-{
- int rv = -1;
-
- /* vcom_socket_main_t *vsm = &vcom_socket_main; */
- vcom_epoll_t *vepoll;
-
- /*__fd could could be vcom socket or vcom epoll or kernel fd */
- void *vfd;
- vcom_epoll_t *vfd_vepoll;
- vcom_socket_t *vfd_vsock;
-
- i32 vep_idx;
- i32 vfd_id;
-
- vcom_fd_type_t type = FD_TYPE_INVALID;
-
- /* validate __event */
-
- /* get vep_idx and vepoll */
- vep_idx = vcom_socket_get_vep_idx_and_vepoll (__epfd, &vepoll);
- if (vep_idx == INVALID_VEP_IDX)
- {
- return -EBADF;
- }
-
- /* get vcom fd type, vfd_id and vfd */
- vfd_id = vcom_socket_get_sid_and_vsock (__fd, &vfd_vsock);
- if (vfd_id != INVALID_SESSION_ID)
- {
- type = FD_TYPE_VCOM_SOCKET;
- vfd = vfd_vsock;
- }
- else if ((vfd_id = vcom_socket_get_vep_idx_and_vepoll (__fd, &vfd_vepoll))
- != INVALID_VEP_IDX)
- {
- type = FD_TYPE_EPOLL;
- vfd = vfd_vepoll;
- }
- else
- {
- /* FD_TYPE_KERNEL not supported by epoll instance */
- type = FD_TYPE_INVALID;
- return -EBADF;
- }
-
-
- /* vepoll and vsock are now valid */
- rv = vppcom_epoll_ctl (vep_idx, __op, vfd_id, __event);
- if (rv < 0)
- {
- return rv;
- }
-
- rv = vcom_socket_ctl_vepitem (__epfd, __op, __fd,
- __event,
- vep_idx, vepoll,
- vfd_id, vfd, type, free_vepitem_on_del);
- return rv;
-}
-
-int
-vcom_socket_epoll_ctl (int __epfd, int __op, int __fd,
- struct epoll_event *__event)
-{
- int rv = -1;
-
- rv = vcom_socket_epoll_ctl_internal (__epfd, __op, __fd, __event, 1);
- return rv;
-}
-
-static int
-vcom_socket_epoll_ctl1 (int __epfd, int __op, int __fd,
- struct epoll_event *__event)
-{
- int rv = -1;
-
- rv = vcom_socket_epoll_ctl_internal (__epfd, __op, __fd, __event, 0);
- return rv;
-}
-
-int
-vcom_socket_epoll_pwait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout,
- const __sigset_t * __ss)
-{
- int rv = -EBADF;
-
- /* in seconds eg. 3.123456789 seconds */
- double time_to_wait = (double) 0;
-
- i32 vep_idx;
-
- /* validate __event */
- if (!__events)
- {
- rv = -EFAULT;
- goto out;
- }
-
- /* validate __timeout */
- if (__timeout > 0)
- {
- time_to_wait = (double) __timeout / (double) 1000;
- }
- else if (__timeout == 0)
- {
- time_to_wait = (double) 0;
- }
- else if (__timeout == -1)
- {
- time_to_wait = ~0;
- }
- else
- {
- rv = -EBADF;
- goto out;
- }
-
- /* get vep_idx */
- vep_idx = vcom_socket_get_vep_idx (__epfd);
- if (vep_idx != INVALID_VEP_IDX)
- {
- rv = vppcom_epoll_wait (vep_idx, __events, __maxevents, time_to_wait);
- }
-out:
- return rv;
-}
-
-static inline void
-vcom_pollfds_2_selectfds (
- /* src */
- struct pollfd *__fds, nfds_t __nfds,
- /* dest */
- int vcom_nfds,
- fd_set * __restrict vcom_readfds,
- fd_set * __restrict vcom_writefds,
- fd_set * __restrict vcom_exceptfds)
-{
- nfds_t fds_idx = 0;
-
- for (fds_idx = 0; fds_idx < __nfds; fds_idx++)
- {
- /* ignore negative fds */
- if (__fds[fds_idx].fd < 0)
- {
- continue;
- }
-
- /* for POLLRDHUP, POLLERR, POLLHUP and POLLNVAL */
- FD_SET (__fds[fds_idx].fd, vcom_exceptfds);
-
- /* requested events */
- if (__fds[fds_idx].events)
- {
- if (__fds[fds_idx].events & POLLIN)
- {
- FD_SET (__fds[fds_idx].fd, vcom_readfds);
- }
- if (__fds[fds_idx].events & POLLPRI)
- {
- FD_SET (__fds[fds_idx].fd, vcom_readfds);
- }
- if (__fds[fds_idx].events & POLLOUT)
- {
- FD_SET (__fds[fds_idx].fd, vcom_writefds);
- }
-#if defined __USE_XOPEN || defined __USE_XOPEN2K8
- if (__fds[fds_idx].events & POLLRDNORM)
- {
- FD_SET (__fds[fds_idx].fd, vcom_readfds);
- }
- if (__fds[fds_idx].events & POLLRDBAND)
- {
- FD_SET (__fds[fds_idx].fd, vcom_readfds);
- }
- if (__fds[fds_idx].events & POLLWRNORM)
- {
- FD_SET (__fds[fds_idx].fd, vcom_writefds);
- }
- if (__fds[fds_idx].events & POLLWRBAND)
- {
- FD_SET (__fds[fds_idx].fd, vcom_writefds);
- }
-#endif
- }
- } /* for (fds_idx = 0; fds_idx < __nfds; fds_idx++) */
-}
-
-static inline void
-vcom_selectfds_2_pollfds (
- /* dest */
- struct pollfd *__fds, nfds_t __nfds, int *nfd,
- /* src */
- int vcom_nfds,
- fd_set * __restrict vcom_readfds,
- fd_set * __restrict vcom_writefds,
- fd_set * __restrict vcom_exceptfds)
-{
- nfds_t fds_idx = 0;
-
-
- for (fds_idx = 0; fds_idx < __nfds; fds_idx++)
- {
- /* ignore negative fds */
- if (__fds[fds_idx].fd < 0)
- {
- __fds[fds_idx].revents = 0;
- }
-
- /* for POLLRDHUP, POLLERR, POLLHUP and POLLNVAL */
- if (FD_ISSET (__fds[fds_idx].fd, vcom_exceptfds))
- {
- /*
- * TBD: for now any select exception
- * is flagged as POLLERR
- * */
- __fds[fds_idx].revents |= POLLERR;
- }
-
- /* requested events */
- if (__fds[fds_idx].events & POLLIN)
- {
- if (FD_ISSET (__fds[fds_idx].fd, vcom_readfds))
- {
- __fds[fds_idx].revents |= POLLIN;
- }
- }
- if (__fds[fds_idx].events & POLLPRI)
- {
- if (FD_ISSET (__fds[fds_idx].fd, vcom_readfds))
- {
- __fds[fds_idx].revents |= POLLIN;
- }
- }
- if (__fds[fds_idx].events & POLLOUT)
- {
- if (FD_ISSET (__fds[fds_idx].fd, vcom_writefds))
- {
- __fds[fds_idx].revents |= POLLOUT;
- }
- }
-#if defined __USE_XOPEN || defined __USE_XOPEN2K8
- if (__fds[fds_idx].events & POLLRDNORM)
- {
- if (FD_ISSET (__fds[fds_idx].fd, vcom_readfds))
- {
- __fds[fds_idx].revents |= POLLRDNORM;
- }
- }
- if (__fds[fds_idx].events & POLLRDBAND)
- {
- if (FD_ISSET (__fds[fds_idx].fd, vcom_readfds))
- {
- __fds[fds_idx].revents |= POLLRDBAND;
- }
- }
- if (__fds[fds_idx].events & POLLWRNORM)
- {
- if (FD_ISSET (__fds[fds_idx].fd, vcom_writefds))
- {
- __fds[fds_idx].revents |= POLLWRNORM;
- }
- }
- if (__fds[fds_idx].events & POLLWRBAND)
- {
- if (FD_ISSET (__fds[fds_idx].fd, vcom_writefds))
- {
- __fds[fds_idx].revents |= POLLWRBAND;
- }
- }
-#endif
- } /* for (fds_idx = 0; fds_idx < __nfds; fds_idx++) */
-
- /*
- * nfd:
- * the number of structures which have nonzero revents fields
- * (in other words, those descriptors with events or
- * errors reported)
- * */
- *nfd = 0;
- for (fds_idx = 0; fds_idx < __nfds; fds_idx++)
- {
- /* ignore negative fds */
- if (__fds[fds_idx].fd < 0)
- {
- continue;
- }
-
- if (__fds[fds_idx].revents)
- {
- (*nfd)++;
- }
- }
-}
-
-/*
- * PRE: parameters are validated,
- * vcom_socket_poll is always called with __timeout set to zero
- * hence returns immediately
- *
- * ACTION: handle non negative validated vcom fds and ignore rest
- */
-
-/*
- * implements vcom_socket_poll () interface
- *
- * internally uses vcom_socket_select ()
- * to realize the behavior
- * */
-int
-vcom_socket_poll_select_impl (struct pollfd *__fds, nfds_t __nfds,
- int __timeout)
-{
- int rv;
- pid_t pid = getpid ();
-
- nfds_t fds_idx = 0;
- int nfd = 0;
-
- /* vcom */
- int vcom_nfds = 0;
- fd_set vcom_readfds;
- fd_set vcom_writefds;
- fd_set vcom_exceptfds;
- int vcom_nfd = -1;
- /* invalid max_vcom_fd is -1 */
- int max_vcom_fd = -1;
-
- /* __timeout is zero to get ready events and return immediately */
- struct timeval tv = {.tv_sec = 0,.tv_usec = 0 };
-
- /* validate __nfds from select perspective */
- if (__nfds < 0 || __nfds > FD_SETSIZE)
- {
- rv = -EINVAL;
- goto poll_done;
- }
-
- /* zero vcom fd sets */
- /*
- * V vcom fd set
- */
-#define _(V) \
- FD_ZERO ((V))
-
- _(&vcom_readfds);
- _(&vcom_writefds);
- _(&vcom_exceptfds);
-#undef _
-
- vcom_nfds = 0;
- vcom_nfd = -1;
-
-
- for (fds_idx = 0; fds_idx < __nfds; fds_idx++)
- {
- /* ignore negative fds */
- if (__fds[fds_idx].fd < 0)
- {
- continue;
- }
-
- /* non negative validated vcom fds */
- if (__fds[fds_idx].fd > FD_SETSIZE)
- {
- rv = -EINVAL;
- goto poll_done;
- }
-
- /* max_vcom_fd and vcom_nfd */
- if (__fds[fds_idx].fd > max_vcom_fd)
- {
- /* requested events */
- if (__fds[fds_idx].events)
- {
- max_vcom_fd = __fds[fds_idx].fd;
- }
- }
- ++vcom_nfd;
- }
-
- vcom_nfds = max_vcom_fd != -1 ? max_vcom_fd + 1 : 0;
-
- if (!vcom_nfds)
- {
- rv = vcom_nfds;
- goto poll_done;
- }
-
- vcom_pollfds_2_selectfds (
- /* src */
- __fds, __nfds,
- /* dest */
- vcom_nfds,
- &vcom_readfds, &vcom_writefds, &vcom_exceptfds);
-
- /* select on vcom fds */
- vcom_nfd = vcom_socket_select (vcom_nfds,
- &vcom_readfds,
- &vcom_writefds, &vcom_exceptfds, &tv);
- if (VCOM_DEBUG > 2)
- fprintf (stderr,
- "[%d] vcom_socket_select: "
- "'%04d'='%04d'\n", pid, vcom_nfd, vcom_nfds);
-
- if (vcom_nfd < 0)
- {
- rv = vcom_nfd;
- goto poll_done;
- }
-
- vcom_selectfds_2_pollfds (
- /* dest */
- __fds, __nfds, &nfd,
- /* src */
- vcom_nfds,
- &vcom_readfds, &vcom_writefds, &vcom_exceptfds);
-
- rv = nfd;
-
-poll_done:
- return rv;
-}
-
-/*
- * TBD: remove this static function once vppcom
- * has an implementation in place
- *
- * ACTION:
- */
-static int
-vppcom_poll (struct pollfd *__fds, nfds_t __nfds, double time_to_wait)
-{
- return -EOPNOTSUPP;
-}
-
-int
-vcom_socket_poll_vppcom_impl (struct pollfd *__fds, nfds_t __nfds,
- int __timeout)
-{
- nfds_t fds_idx = 0;
-
- /* in seconds eg. 3.123456789 seconds */
- double time_to_wait = (double) 0;
-
- i32 sid;
- i32 vep_idx;
-
- /* replace vcom fd with session idx */
- for (fds_idx = 0; fds_idx < __nfds; fds_idx++)
- {
- /* ignore negative fds */
- if (__fds[fds_idx].fd < 0)
- {
- continue;
- }
-
- /* non negative validated vcom fds */
- sid = vcom_socket_get_sid (__fds[fds_idx].fd);
- if (sid != INVALID_SESSION_ID)
- {
- __fds[fds_idx].fd = sid;
- }
- else
- {
- /* get vep_idx */
- vep_idx = vcom_socket_get_vep_idx (__fds[fds_idx].fd);
- if (vep_idx != INVALID_VEP_IDX)
- {
- __fds[fds_idx].fd = vep_idx;
- }
- else
- {
- return -EBADF;
- }
- }
- }
-
- /* validate __timeout */
- if (__timeout > 0)
- {
- time_to_wait = (double) __timeout / (double) 1000;
- }
- else if (__timeout == 0)
- {
- time_to_wait = (double) 0;
- }
- else if (__timeout < 0)
- {
- time_to_wait = ~0;
- }
- else
- {
- return -EBADF;
- }
-
- return vppcom_poll (__fds, __nfds, time_to_wait);
-}
-
-int
-vcom_socket_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
-{
- /* select an implementation */
-
- /* return vcom_socket_poll_vppcom_impl (__fds, __nfds, __timeout); */
- return vcom_socket_poll_select_impl (__fds, __nfds, __timeout);
-}
-
-#ifdef __USE_GNU
-int
-vcom_socket_ppoll (struct pollfd *__fds, nfds_t __nfds,
- const struct timespec *__timeout, const __sigset_t * __ss)
-{
- return -EOPNOTSUPP;
-}
-#endif
-
-int
-vcom_socket_main_init (void)
-{
- vcom_socket_main_t *vsm = &vcom_socket_main;
-
- if (VCOM_DEBUG > 0)
- printf ("vcom_socket_main_init\n");
-
- if (!vsm->init)
- {
- /* TBD: define FD_MAXSIZE and use it here */
- pool_alloc (vsm->vsockets, FD_SETSIZE);
- vsm->sockidx_by_fd = hash_create (0, sizeof (i32));
-
- pool_alloc (vsm->vepolls, FD_SETSIZE);
- vsm->epollidx_by_epfd = hash_create (0, sizeof (i32));
-
- pool_alloc (vsm->vepitems, FD_SETSIZE);
- vsm->epitemidx_by_epfdfd = hash_create (0, sizeof (i32));
-
- vsm->epitemidxs_by_epfd = hash_create (0, sizeof (i32 *));
- vsm->epitemidxs_by_fd = hash_create (0, sizeof (i32 *));
-
- vsm->init = 1;
- }
-
- return 0;
-}
-
-
-void
-vcom_socket_main_show (void)
-{
- vcom_socket_main_t *vsm = &vcom_socket_main;
- vcom_socket_t *vsock;
-
- vcom_epoll_t *vepoll;
-
- vcom_epitem_t *vepitem;
-
- i32 epfd;
- i32 fd;
- i32 *vepitemidxs, *vepitemidxs_var;
-
- if (vsm->init)
- {
- /* from active list of vsockets show vsock */
-
- /* *INDENT-OFF* */
- pool_foreach (vsock, vsm->vsockets,
- ({
- printf(
- "fd='%04d', sid='%08x',type='%-30s'\n",
- vsock->fd, vsock->sid,
- vcom_socket_type_str (vsock->type));
- }));
- /* *INDENT-ON* */
-
- /* from active list of vepolls, show vepoll */
-
- /* *INDENT-OFF* */
- pool_foreach (vepoll, vsm->vepolls,
- ({
- printf(
- "epfd='%04d', vep_idx='%08x', "
- "type='%-30s', "
- "flags='%d', count='%d', close='%d'\n",
- vepoll->epfd, vepoll->vep_idx,
- vcom_socket_epoll_type_str (vepoll->type),
- vepoll->flags, vepoll->count, vepoll->close);
- }));
- /* *INDENT-ON* */
-
- /* from active list of vepitems, show vepitem */
-
- /* *INDENT-OFF* */
- pool_foreach (vepitem, vsm->vepitems,
- ({
- printf(
- "epfd='%04d', fd='%04d', "
- "next_fd='%04d', prev_fd='%04d', "
- "type='%-30s', "
- "events='%04x', revents='%04x'\n",
- vepitem->epfd, vepitem->fd,
- vepitem->next_fd, vepitem->prev_fd,
- vcom_socket_vcom_fd_type_str (vepitem->type),
- vepitem->event.events, vepitem->revent.events);
- }));
-
- /* *INDENT-ON* */
-
- /* show epitemidxs for epfd */
- /* *INDENT-OFF* */
- hash_foreach (epfd, vepitemidxs,
- vsm->epitemidxs_by_epfd,
- ({
- printf("\n[ '%04d': ", epfd);
- vec_foreach (vepitemidxs_var,vepitemidxs)
- {
- printf("'%04d' ", (int)vepitemidxs_var[0]);
- }
- printf("]\n");
- }));
- /* *INDENT-ON* */
-
- /* show epitemidxs for fd */
- /* *INDENT-OFF* */
- hash_foreach (fd, vepitemidxs,
- vsm->epitemidxs_by_fd,
- ({
- printf("\n{ '%04d': ", fd);
- vec_foreach (vepitemidxs_var,vepitemidxs)
- {
- printf("'%04d' ", (int)vepitemidxs_var[0]);
- }
- printf("}\n");
- }));
- /* *INDENT-ON* */
-
- }
-}
-
-void
-vcom_socket_main_destroy (void)
-{
- vcom_socket_main_t *vsm = &vcom_socket_main;
- vcom_socket_t *vsock;
-
- vcom_epoll_t *vepoll;
-
- vcom_epitem_t *vepitem;
-
- i32 epfd;
- i32 fd;
- i32 *vepitemidxs;
-
-
- if (VCOM_DEBUG > 0)
- printf ("vcom_socket_main_destroy\n");
-
- if (vsm->init)
- {
-
- /*
- * from active list of vepitems,
- * remove all "vepitem" elements from the pool in a safe way
- * */
-
- /* *INDENT-OFF* */
- pool_flush (vepitem, vsm->vepitems,
- ({
- if (vepitem->type == FD_TYPE_EPOLL || FD_TYPE_VCOM_SOCKET)
- {
- vcom_socket_epoll_ctl1 (vepitem->epfd, EPOLL_CTL_DEL,
- vepitem->fd, NULL);
- vepitem_init (vepitem);
- }
- }));
- /* *INDENT-ON* */
-
- pool_free (vsm->vepitems);
- hash_free (vsm->epitemidx_by_epfdfd);
-
- /* free vepitemidxs for each epfd */
- /* *INDENT-OFF* */
- hash_foreach (epfd, vepitemidxs,
- vsm->epitemidxs_by_epfd,
- ({
- vec_free (vepitemidxs);
- }));
- /* *INDENT-ON* */
- hash_free (vsm->epitemidxs_by_epfd);
-
- /* free vepitemidxs for each fd */
- /* *INDENT-OFF* */
- hash_foreach (fd, vepitemidxs,
- vsm->epitemidxs_by_fd,
- ({
- vec_free (vepitemidxs);
- }));
- /* *INDENT-ON* */
- hash_free (vsm->epitemidxs_by_fd);
-
-
- /*
- * from active list of vsockets,
- * close socket and vppcom session
- * */
-
- /* *INDENT-OFF* */
- pool_foreach (vsock, vsm->vsockets,
- ({
- if (vsock->type == SOCKET_TYPE_VPPCOM_BOUND)
- {
- vppcom_session_close (vsock->sid);
- vcom_socket_close_socket (vsock->fd);
- vsocket_init (vsock);
- }
- }));
- /* *INDENT-ON* */
-
- /*
- * return vsocket element to the pool
- * */
-
- /* *INDENT-OFF* */
- pool_flush (vsock, vsm->vsockets,
- ({
- // vsocket_init(vsock);
- ;
- }));
- /* *INDENT-ON* */
-
- pool_free (vsm->vsockets);
- hash_free (vsm->sockidx_by_fd);
-
- /*
- * from active list of vepolls,
- * close epoll and vppcom_epoll
- * */
-
- /* *INDENT-OFF* */
- pool_foreach (vepoll, vsm->vepolls,
- ({
- if (vepoll->type == EPOLL_TYPE_VPPCOM_BOUND)
- {
- vppcom_session_close (vepoll->vep_idx);
- vcom_socket_close_epoll (vepoll->epfd); /* TBD: */
- vepoll_init (vepoll);
- }
- }));
- /* *INDENT-ON* */
-
- /*
- * return vepoll element to the pool
- * */
-
- /* *INDENT-OFF* */
- pool_flush (vepoll, vsm->vepolls,
- ({
- // vepoll_init(vepoll);
- ;
- }));
- /* *INDENT-ON* */
-
- pool_free (vsm->vepolls);
- hash_free (vsm->epollidx_by_epfd);
-
- vsm->init = 0;
- }
-}
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.h b/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.h
deleted file mode 100644
index 9dc18f58af2..00000000000
--- a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket.h
+++ /dev/null
@@ -1,470 +0,0 @@
-/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef included_vcom_socket_h
-#define included_vcom_socket_h
-
-#include <string.h>
-
-#include <libvcl-ldpreload/vcom_glibc_socket.h>
-#include <vppinfra/types.h>
-
-#define INVALID_SESSION_ID (~0)
-#define INVALID_FD (~0)
-
-#define INVALID_VEP_IDX INVALID_SESSION_ID
-#define INVALID_EPFD INVALID_FD
-
-typedef enum
-{
- SOCKET_TYPE_UNBOUND = 0,
- SOCKET_TYPE_KERNEL_BOUND,
- SOCKET_TYPE_VPPCOM_BOUND
-} vcom_socket_type_t;
-
-typedef enum
-{
- EPOLL_TYPE_UNBOUND = 0,
- EPOLL_TYPE_KERNEL_BOUND,
- EPOLL_TYPE_VPPCOM_BOUND
-} vcom_epoll_type_t;
-
-typedef enum
-{
- FD_TYPE_INVALID = 0,
- FD_TYPE_KERNEL,
- FD_TYPE_EPOLL,
- FD_TYPE_VCOM_SOCKET,
- /* add new types here */
- /* FD_TYPE_MAX should be the last entry */
- FD_TYPE_MAX
-} vcom_fd_type_t;
-
-typedef struct
-{
- /* file descriptor -
- * fd 0, 1, 2 have special meaning and are reserved,
- * -1 denote invalid fd */
- i32 fd;
-
- /* session id - -1 denote invalid sid */
- i32 sid;
-
- /* socket type */
- vcom_socket_type_t type;
-
- /* vcom socket attributes here */
-
-} vcom_socket_t;
-
-typedef struct
-{
- /* epoll file descriptor -
- * epfd 0, 1, 2 have special meaning and are reserved,
- * -1 denote invalid epfd */
- i32 epfd;
-
- /* vep idx - -1 denote invalid vep_idx */
- i32 vep_idx;
-
- /* epoll type */
- vcom_epoll_type_t type;
-
- /* flags - 0 or EPOLL_CLOEXEC */
- i32 flags;
-
- /* vcom epoll attributes here */
-
- /*
- * 00. count of file descriptors currently registered
- * on this epoll instance.
- * 01. number of file descriptors in the epoll set.
- * 02. EPOLL_CTL_ADD, EPOLL_CTL_MOD, EPOLL_CTL_DEL
- * update the count.
- * 03. cached for frequent access.
- * */
- i32 count;
-
- /* close( ) called on this epoll instance */
- /* 0 - close ( ) not called, 1 - close( ) called. */
- u32 close;
-
-} vcom_epoll_t;
-
-typedef struct
-{
- /* "container" of this item */
- i32 epfd;
-
- /* fd - file descriptor information this item refers to */
- i32 fd;
- /* next and prev fd in the "epoll set" of epfd */
- i32 next_fd;
- i32 prev_fd;
-
- /* vcom fd type */
- vcom_fd_type_t type;
-
- /* interested events and the source fd */
- struct epoll_event event;
-
- /* ready events and the source fd */
- struct epoll_event revent;
-
- /* epitem attributes here */
-
-} vcom_epitem_t;
-
-typedef union vcom_epitem_key
-{
- struct
- {
- i32 fd;
- i32 epfd;
- };
- i64 key;
-} __EPOLL_PACKED vcom_epitem_key_t;
-
-static inline char *
-vcom_socket_type_str (vcom_socket_type_t t)
-{
- switch (t)
- {
- case SOCKET_TYPE_UNBOUND:
- return "SOCKET_TYPE_UNBOUND";
-
- case SOCKET_TYPE_KERNEL_BOUND:
- return "SOCKET_TYPE_KERNEL_BOUND";
-
- case SOCKET_TYPE_VPPCOM_BOUND:
- return "SOCKET_TYPE_VPPCOM_BOUND";
-
- default:
- return "SOCKET_TYPE_UNKNOWN";
- }
-}
-
-static inline char *
-vcom_socket_epoll_type_str (vcom_epoll_type_t t)
-{
- switch (t)
- {
- case EPOLL_TYPE_UNBOUND:
- return "EPOLL_TYPE_UNBOUND";
-
- case EPOLL_TYPE_KERNEL_BOUND:
- return "EPOLL_TYPE_KERNEL_BOUND";
-
- case EPOLL_TYPE_VPPCOM_BOUND:
- return "EPOLL_TYPE_VPPCOM_BOUND";
-
- default:
- return "EPOLL_TYPE_UNKNOWN";
- }
-}
-
-static inline char *
-vcom_socket_vcom_fd_type_str (vcom_fd_type_t t)
-{
- switch (t)
- {
- case FD_TYPE_KERNEL:
- return "FD_TYPE_KERNEL";
-
- case FD_TYPE_EPOLL:
- return "FD_TYPE_EPOLL";
-
- case FD_TYPE_VCOM_SOCKET:
- return "FD_TYPE_VCOM_SOCKET";
-
- default:
- return "FD_TYPE_UNKNOWN";
- }
-}
-
-static inline int
-vcom_socket_type_is_vppcom_bound (vcom_socket_type_t t)
-{
- return t == SOCKET_TYPE_VPPCOM_BOUND;
-}
-
-static inline int
-vcom_socket_epoll_type_is_vppcom_bound (vcom_epoll_type_t t)
-{
- return t == EPOLL_TYPE_VPPCOM_BOUND;
-}
-
-static inline void
-vsocket_init (vcom_socket_t * vsock)
-{
- memset (vsock, 0, sizeof (*vsock));
-
- vsock->fd = INVALID_FD;
- vsock->sid = INVALID_SESSION_ID;
- vsock->type = SOCKET_TYPE_UNBOUND;
- /* vcom socket attributes init here */
-}
-
-static inline void
-vepoll_init (vcom_epoll_t * vepoll)
-{
- memset (vepoll, 0, sizeof (*vepoll));
-
- vepoll->epfd = INVALID_EPFD;
- vepoll->vep_idx = INVALID_VEP_IDX;
- vepoll->type = EPOLL_TYPE_UNBOUND;
- vepoll->flags = 0;
-
- vepoll->count = 0;
- vepoll->close = 0;
- /* vcom epoll attributes init here */
-}
-
-static inline void
-vepitem_init (vcom_epitem_t * vepitem)
-{
- struct epoll_event event = {.events = 0,.data.fd = INVALID_FD };
-
- memset (vepitem, 0, sizeof (*vepitem));
-
- vepitem->epfd = INVALID_EPFD;
-
- vepitem->fd = INVALID_FD;
- vepitem->next_fd = INVALID_FD;
- vepitem->prev_fd = INVALID_FD;
-
- vepitem->type = FD_TYPE_INVALID;
-
- vepitem->event = event;
- vepitem->revent = event;
- /* vepoll attributes init here */
-}
-
-static inline void
-vepitemkey_init (vcom_epitem_key_t * epfdfd)
-{
- memset (epfdfd, 0, sizeof (*epfdfd));
-
- epfdfd->epfd = INVALID_EPFD;
- epfdfd->fd = INVALID_FD;
-}
-
-static inline void
-vsocket_set (vcom_socket_t * vsock, i32 fd, i32 sid, vcom_socket_type_t type)
-{
- vsock->fd = fd;
- vsock->sid = sid;
- vsock->type = type;
- /* vcom socket attributes set here */
-}
-
-static inline void
-vepoll_set (vcom_epoll_t * vepoll,
- i32 epfd, i32 vep_idx,
- vcom_epoll_type_t type, i32 flags, i32 count, u32 close)
-{
- vepoll->epfd = epfd;
- vepoll->vep_idx = vep_idx;
- vepoll->type = type;
- vepoll->flags = flags;
-
- vepoll->count = count;
- vepoll->close = close;
- /* vcom epoll attributes set here */
-}
-
-static inline void
-vepitem_set (vcom_epitem_t * vepitem,
- i32 epfd,
- i32 fd, i32 next_fd, i32 prev_fd,
- vcom_fd_type_t type,
- struct epoll_event event, struct epoll_event revent)
-{
- vepitem->epfd = epfd;
-
- vepitem->fd = fd;
- vepitem->next_fd = next_fd;
- vepitem->prev_fd = prev_fd;
-
- vepitem->type = type;
-
- vepitem->event = event;
- vepitem->revent = revent;
- /* vcom epitem attributes set here */
-}
-
-static inline void
-vepitemkey_set (vcom_epitem_key_t * epfdfd, i32 epfd, i32 fd)
-{
- epfdfd->epfd = epfd;
- epfdfd->fd = fd;
-}
-
-static inline int
-vsocket_is_vppcom_bound (vcom_socket_t * vsock)
-{
- return vcom_socket_type_is_vppcom_bound (vsock->type);
-}
-
-static inline int
-vepoll_is_vppcom_bound (vcom_epoll_t * vepoll)
-{
- return vcom_socket_epoll_type_is_vppcom_bound (vepoll->type);
-}
-
-int vcom_socket_main_init (void);
-
-void vcom_socket_main_destroy (void);
-
-void vcom_socket_main_show (void);
-
-int vcom_socket_is_vcom_fd (int fd);
-
-int vcom_socket_is_vcom_epfd (int epfd);
-
-int vcom_socket_close (int __fd);
-
-ssize_t vcom_socket_read (int __fd, void *__buf, size_t __nbytes);
-
-ssize_t vcom_socket_readv (int __fd, const struct iovec *__iov, int __iovcnt);
-
-ssize_t vcom_socket_write (int __fd, const void *__buf, size_t __n);
-
-ssize_t vcom_socket_writev (int __fd, const struct iovec *__iov,
- int __iovcnt);
-
-int vcom_socket_fcntl_va (int __fd, int __cmd, va_list __ap);
-
-int vcom_socket_ioctl_va (int __fd, unsigned long int __cmd, va_list __ap);
-
-int
-vcom_socket_select (int vcom_nfds, fd_set * __restrict vcom_readfds,
- fd_set * __restrict vcom_writefds,
- fd_set * __restrict vcom_exceptfds,
- struct timeval *__restrict timeout);
-
-
-int vcom_socket_socket (int __domain, int __type, int __protocol);
-
-int
-vcom_socket_socketpair (int __domain, int __type, int __protocol,
- int __fds[2]);
-
-int vcom_socket_bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len);
-
-int
-vcom_socket_getsockname (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __len);
-
-int
-vcom_socket_connect (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len);
-
-int
-vcom_socket_getpeername (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __len);
-
-ssize_t
-vcom_socket_send (int __fd, const void *__buf, size_t __n, int __flags);
-
-ssize_t vcom_socket_recv (int __fd, void *__buf, size_t __n, int __flags);
-
-/*
- * RETURN 1 if __fd is (SOCK_STREAM, SOCK_SEQPACKET),
- * 0 otherwise
- * */
-int vcom_socket_is_connection_mode_socket (int __fd);
-
-ssize_t
-vcom_socket_sendto (int __fd, const void *__buf, size_t __n,
- int __flags, __CONST_SOCKADDR_ARG __addr,
- socklen_t __addr_len);
-
-ssize_t
-vcom_socket_recvfrom (int __fd, void *__restrict __buf, size_t __n,
- int __flags, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len);
-
-ssize_t
-vcom_socket_sendmsg (int __fd, const struct msghdr *__message, int __flags);
-
-#ifdef __USE_GNU
-int
-vcom_socket_sendmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags);
-#endif
-
-ssize_t vcom_socket_recvmsg (int __fd, struct msghdr *__message, int __flags);
-
-#ifdef __USE_GNU
-int
-vcom_socket_recvmmsg (int __fd, struct mmsghdr *__vmessages,
- unsigned int __vlen, int __flags,
- struct timespec *__tmo);
-#endif
-
-int
-vcom_socket_getsockopt (int __fd, int __level, int __optname,
- void *__restrict __optval,
- socklen_t * __restrict __optlen);
-
-int
-vcom_socket_setsockopt (int __fd, int __level, int __optname,
- const void *__optval, socklen_t __optlen);
-
-int vcom_socket_listen (int __fd, int __n);
-
-int
-vcom_socket_accept (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len);
-
-#ifdef __USE_GNU
-int
-vcom_socket_accept4 (int __fd, __SOCKADDR_ARG __addr,
- socklen_t * __restrict __addr_len, int __flags);
-#endif
-
-int vcom_socket_shutdown (int __fd, int __how);
-
-int vcom_socket_epoll_create1 (int __flags);
-
-int
-vcom_socket_epoll_ctl (int __epfd, int __op, int __fd,
- struct epoll_event *__event);
-
-int
-vcom_socket_epoll_pwait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout,
- const __sigset_t * __ss);
-
-/*
- * handle only vcom fds
- */
-int vcom_socket_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
-
-#ifdef __USE_GNU
-int
-vcom_socket_ppoll (struct pollfd *__fds, nfds_t __nfds,
- const struct timespec *__timeout, const __sigset_t * __ss);
-#endif
-
-#endif /* included_vcom_socket_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.c b/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.c
deleted file mode 100644
index 9b961af6bad..00000000000
--- a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.c
+++ /dev/null
@@ -1,906 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Copyright (c) 2005-2008 Jelmer Vernooij <jelmer@samba.org>
- * Copyright (C) 2006-2014 Stefan Metzmacher <metze@samba.org>
- * Copyright (C) 2013-2014 Andreas Schneider <asn@samba.org>
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the author nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
-/*
- Socket wrapper library. Passes all socket communication over
- unix domain sockets if the environment variable SOCKET_WRAPPER_DIR
- is set.
-*/
-
-#include <signal.h>
-#include <dlfcn.h>
-
-#include <stdio.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <pthread.h>
-
-#include <libvcl-ldpreload/vcom_socket_wrapper.h>
-
-
-enum swrap_dbglvl_e
-{
- SWRAP_LOG_ERROR = 0,
- SWRAP_LOG_WARN,
- SWRAP_LOG_DEBUG,
- SWRAP_LOG_TRACE
-};
-
-
-/* Macros for accessing mutexes */
-#define SWRAP_LOCK(m) do { \
- pthread_mutex_lock(&(m ## _mutex)); \
-} while(0)
-
-#define SWRAP_UNLOCK(m) do { \
- pthread_mutex_unlock(&(m ## _mutex)); \
-} while(0)
-
-/* Add new global locks here please */
-#define SWRAP_LOCK_ALL \
- SWRAP_LOCK(libc_symbol_binding); \
-
-#define SWRAP_UNLOCK_ALL \
- SWRAP_UNLOCK(libc_symbol_binding); \
-
-
-
-/* The mutex for accessing the global libc.symbols */
-static pthread_mutex_t libc_symbol_binding_mutex = PTHREAD_MUTEX_INITIALIZER;
-
-/* Function prototypes */
-
-#ifdef NDEBUG
-#define SWRAP_LOG(...)
-#else
-static void
-swrap_log (enum swrap_dbglvl_e dbglvl, const char *func,
- const char *format, ...)
-PRINTF_ATTRIBUTE (3, 4);
-#define SWRAP_LOG(dbglvl, ...) swrap_log((dbglvl), __func__, __VA_ARGS__)
-
- static void
- swrap_log (enum swrap_dbglvl_e dbglvl,
- const char *func, const char *format, ...)
-{
- char buffer[1024];
- va_list va;
- unsigned int lvl = SWRAP_LOG_WARN;
-
- va_start (va, format);
- vsnprintf (buffer, sizeof (buffer), format, va);
- va_end (va);
-
- if (lvl >= dbglvl)
- {
- switch (dbglvl)
- {
- case SWRAP_LOG_ERROR:
- fprintf (stderr,
- "SWRAP_ERROR(%d) - %s: %s\n",
- (int) getpid (), func, buffer);
- break;
- case SWRAP_LOG_WARN:
- fprintf (stderr,
- "SWRAP_WARN(%d) - %s: %s\n",
- (int) getpid (), func, buffer);
- break;
- case SWRAP_LOG_DEBUG:
- fprintf (stderr,
- "SWRAP_DEBUG(%d) - %s: %s\n",
- (int) getpid (), func, buffer);
- break;
- case SWRAP_LOG_TRACE:
- fprintf (stderr,
- "SWRAP_TRACE(%d) - %s: %s\n",
- (int) getpid (), func, buffer);
- break;
- }
- }
-}
-#endif
-
-
-/*********************************************************
- * SWRAP LOADING LIBC FUNCTIONS
- *********************************************************/
-
-#ifdef HAVE_ACCEPT4
-typedef int (*__libc_accept4) (int sockfd,
- struct sockaddr * addr,
- socklen_t * addrlen, int flags);
-#else
-typedef int (*__libc_accept) (int sockfd,
- struct sockaddr * addr, socklen_t * addrlen);
-#endif
-typedef int (*__libc_bind) (int sockfd,
- const struct sockaddr * addr, socklen_t addrlen);
-typedef int (*__libc_close) (int fd);
-typedef int (*__libc_connect) (int sockfd,
- const struct sockaddr * addr,
- socklen_t addrlen);
-
-#if 0
-/* TBD: dup and dup2 to be implemented later */
-typedef int (*__libc_dup) (int fd);
-typedef int (*__libc_dup2) (int oldfd, int newfd);
-#endif
-
-typedef int (*__libc_fcntl) (int fd, int cmd, ...);
-typedef FILE *(*__libc_fopen) (const char *name, const char *mode);
-#ifdef HAVE_FOPEN64
-typedef FILE *(*__libc_fopen64) (const char *name, const char *mode);
-#endif
-#ifdef HAVE_EVENTFD
-typedef int (*__libc_eventfd) (int count, int flags);
-#endif
-typedef int (*__libc_getpeername) (int sockfd,
- struct sockaddr * addr,
- socklen_t * addrlen);
-typedef int (*__libc_getsockname) (int sockfd,
- struct sockaddr * addr,
- socklen_t * addrlen);
-typedef int (*__libc_getsockopt) (int sockfd,
- int level,
- int optname,
- void *optval, socklen_t * optlen);
-typedef int (*__libc_ioctl) (int d, unsigned long int request, ...);
-typedef int (*__libc_listen) (int sockfd, int backlog);
-typedef int (*__libc_open) (const char *pathname, int flags, mode_t mode);
-#ifdef HAVE_OPEN64
-typedef int (*__libc_open64) (const char *pathname, int flags, mode_t mode);
-#endif /* HAVE_OPEN64 */
-typedef int (*__libc_openat) (int dirfd, const char *path, int flags, ...);
-typedef int (*__libc_pipe) (int pipefd[2]);
-typedef int (*__libc_read) (int fd, void *buf, size_t count);
-typedef ssize_t (*__libc_readv) (int fd, const struct iovec * iov,
- int iovcnt);
-typedef int (*__libc_recv) (int sockfd, void *buf, size_t len, int flags);
-typedef int (*__libc_recvfrom) (int sockfd,
- void *buf,
- size_t len,
- int flags,
- struct sockaddr * src_addr,
- socklen_t * addrlen);
-typedef int (*__libc_recvmsg) (int sockfd, const struct msghdr * msg,
- int flags);
-typedef int (*__libc_send) (int sockfd, const void *buf, size_t len,
- int flags);
-typedef int (*__libc_sendmsg) (int sockfd, const struct msghdr * msg,
- int flags);
-typedef int (*__libc_sendto) (int sockfd, const void *buf, size_t len,
- int flags, const struct sockaddr * dst_addr,
- socklen_t addrlen);
-typedef int (*__libc_setsockopt) (int sockfd, int level, int optname,
- const void *optval, socklen_t optlen);
-#ifdef HAVE_SIGNALFD
-typedef int (*__libc_signalfd) (int fd, const sigset_t * mask, int flags);
-#endif
-typedef int (*__libc_socket) (int domain, int type, int protocol);
-typedef int (*__libc_socketpair) (int domain, int type, int protocol,
- int sv[2]);
-#ifdef HAVE_TIMERFD_CREATE
-typedef int (*__libc_timerfd_create) (int clockid, int flags);
-#endif
-typedef ssize_t (*__libc_write) (int fd, const void *buf, size_t count);
-typedef ssize_t (*__libc_writev) (int fd, const struct iovec * iov,
- int iovcnt);
-
-typedef int (*__libc_shutdown) (int fd, int how);
-
-typedef int (*__libc_select) (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- struct timeval * __restrict __timeout);
-
-#ifdef __USE_XOPEN2K
-typedef int (*__libc_pselect) (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- const struct timespec * __restrict __timeout,
- const __sigset_t * __restrict __sigmask);
-#endif
-
-typedef int (*__libc_epoll_create) (int __size);
-
-typedef int (*__libc_epoll_create1) (int __flags);
-
-typedef int (*__libc_epoll_ctl) (int __epfd, int __op, int __fd,
- struct epoll_event * __event);
-
-typedef int (*__libc_epoll_wait) (int __epfd, struct epoll_event * __events,
- int __maxevents, int __timeout);
-
-typedef int (*__libc_epoll_pwait) (int __epfd, struct epoll_event * __events,
- int __maxevents, int __timeout,
- const __sigset_t * __ss);
-
-typedef int (*__libc_poll) (struct pollfd * __fds, nfds_t __nfds,
- int __timeout);
-
-#ifdef __USE_GNU
-typedef int (*__libc_ppoll) (struct pollfd * __fds, nfds_t __nfds,
- const struct timespec * __timeout,
- const __sigset_t * __ss);
-#endif
-
-
-#define SWRAP_SYMBOL_ENTRY(i) \
- union { \
- __libc_##i f; \
- void *obj; \
- } _libc_##i
-
-struct swrap_libc_symbols
-{
-#ifdef HAVE_ACCEPT4
- SWRAP_SYMBOL_ENTRY (accept4);
-#else
- SWRAP_SYMBOL_ENTRY (accept);
-#endif
- SWRAP_SYMBOL_ENTRY (bind);
- SWRAP_SYMBOL_ENTRY (close);
- SWRAP_SYMBOL_ENTRY (connect);
-#if 0
- /* TBD: dup and dup2 to be implemented later */
- SWRAP_SYMBOL_ENTRY (dup);
- SWRAP_SYMBOL_ENTRY (dup2);
-#endif
- SWRAP_SYMBOL_ENTRY (fcntl);
- SWRAP_SYMBOL_ENTRY (fopen);
-#ifdef HAVE_FOPEN64
- SWRAP_SYMBOL_ENTRY (fopen64);
-#endif
-#ifdef HAVE_EVENTFD
- SWRAP_SYMBOL_ENTRY (eventfd);
-#endif
- SWRAP_SYMBOL_ENTRY (getpeername);
- SWRAP_SYMBOL_ENTRY (getsockname);
- SWRAP_SYMBOL_ENTRY (getsockopt);
- SWRAP_SYMBOL_ENTRY (ioctl);
- SWRAP_SYMBOL_ENTRY (listen);
- SWRAP_SYMBOL_ENTRY (open);
-#ifdef HAVE_OPEN64
- SWRAP_SYMBOL_ENTRY (open64);
-#endif
- SWRAP_SYMBOL_ENTRY (openat);
- SWRAP_SYMBOL_ENTRY (pipe);
- SWRAP_SYMBOL_ENTRY (read);
- SWRAP_SYMBOL_ENTRY (readv);
- SWRAP_SYMBOL_ENTRY (recv);
- SWRAP_SYMBOL_ENTRY (recvfrom);
- SWRAP_SYMBOL_ENTRY (recvmsg);
- SWRAP_SYMBOL_ENTRY (send);
- SWRAP_SYMBOL_ENTRY (sendmsg);
- SWRAP_SYMBOL_ENTRY (sendto);
- SWRAP_SYMBOL_ENTRY (setsockopt);
-#ifdef HAVE_SIGNALFD
- SWRAP_SYMBOL_ENTRY (signalfd);
-#endif
- SWRAP_SYMBOL_ENTRY (socket);
- SWRAP_SYMBOL_ENTRY (socketpair);
-#ifdef HAVE_TIMERFD_CREATE
- SWRAP_SYMBOL_ENTRY (timerfd_create);
-#endif
- SWRAP_SYMBOL_ENTRY (write);
- SWRAP_SYMBOL_ENTRY (writev);
-
- SWRAP_SYMBOL_ENTRY (shutdown);
- SWRAP_SYMBOL_ENTRY (select);
-#ifdef __USE_XOPEN2K
- SWRAP_SYMBOL_ENTRY (pselect);
-#endif
- SWRAP_SYMBOL_ENTRY (epoll_create);
- SWRAP_SYMBOL_ENTRY (epoll_create1);
- SWRAP_SYMBOL_ENTRY (epoll_ctl);
- SWRAP_SYMBOL_ENTRY (epoll_wait);
- SWRAP_SYMBOL_ENTRY (epoll_pwait);
- SWRAP_SYMBOL_ENTRY (poll);
-#ifdef __USE_GNU
- SWRAP_SYMBOL_ENTRY (ppoll);
-#endif
-};
-
-struct swrap
-{
- struct
- {
- void *handle;
- void *socket_handle;
- struct swrap_libc_symbols symbols;
- } libc;
-};
-
-static struct swrap swrap;
-
-#define LIBC_NAME "libc.so"
-
-enum swrap_lib
-{
- SWRAP_LIBC,
-};
-
-#ifndef NDEBUG
-static const char *
-swrap_str_lib (enum swrap_lib lib)
-{
- switch (lib)
- {
- case SWRAP_LIBC:
- return "libc";
- }
-
- /* Compiler would warn us about unhandled enum value if we get here */
- return "unknown";
-}
-#endif
-
-static void *
-swrap_load_lib_handle (enum swrap_lib lib)
-{
- int flags = RTLD_LAZY;
- void *handle = NULL;
- int i;
-
-#ifdef RTLD_DEEPBIND
- flags |= RTLD_DEEPBIND;
-#endif
-
- switch (lib)
- {
- case SWRAP_LIBC:
- handle = swrap.libc.handle;
-#ifdef LIBC_SO
- if (handle == NULL)
- {
- handle = dlopen (LIBC_SO, flags);
-
- swrap.libc.handle = handle;
- }
-#endif
- if (handle == NULL)
- {
- for (i = 10; i >= 0; i--)
- {
- char soname[256] = { 0 };
-
- snprintf (soname, sizeof (soname), "libc.so.%d", i);
- handle = dlopen (soname, flags);
- if (handle != NULL)
- {
- break;
- }
- }
-
- swrap.libc.handle = handle;
- }
- break;
- }
-
- if (handle == NULL)
- {
- SWRAP_LOG (SWRAP_LOG_ERROR,
- "Failed to dlopen library: %s\n", dlerror ());
- exit (-1);
- }
-
- return handle;
-}
-
-static void *
-_swrap_bind_symbol (enum swrap_lib lib, const char *fn_name)
-{
- void *handle;
- void *func;
-
- handle = swrap_load_lib_handle (lib);
-
- func = dlsym (handle, fn_name);
- if (func == NULL)
- {
- SWRAP_LOG (SWRAP_LOG_ERROR,
- "Failed to find %s: %s\n", fn_name, dlerror ());
- exit (-1);
- }
-
- SWRAP_LOG (SWRAP_LOG_TRACE,
- "Loaded %s from %s", fn_name, swrap_str_lib (lib));
-
- return func;
-}
-
-#define swrap_bind_symbol_libc(sym_name) \
- SWRAP_LOCK(libc_symbol_binding); \
- if (swrap.libc.symbols._libc_##sym_name.obj == NULL) { \
- swrap.libc.symbols._libc_##sym_name.obj = \
- _swrap_bind_symbol(SWRAP_LIBC, #sym_name); \
- } \
- SWRAP_UNLOCK(libc_symbol_binding)
-
-/*
- * IMPORTANT
- *
- * Functions especially from libc need to be loaded individually, you can't load
- * all at once or gdb will segfault at startup. The same applies to valgrind and
- * has probably something todo with with the linker.
- * So we need load each function at the point it is called the first time.
- */
-#ifdef HAVE_ACCEPT4
-int
-libc_accept4 (int sockfd,
- struct sockaddr *addr, socklen_t * addrlen, int flags)
-{
- swrap_bind_symbol_libc (accept4);
-
- return swrap.libc.symbols._libc_accept4.f (sockfd, addr, addrlen, flags);
-}
-
-#else /* HAVE_ACCEPT4 */
-
-int
-libc_accept (int sockfd, struct sockaddr *addr, socklen_t * addrlen)
-{
- swrap_bind_symbol_libc (accept);
-
- return swrap.libc.symbols._libc_accept.f (sockfd, addr, addrlen);
-}
-#endif /* HAVE_ACCEPT4 */
-
-int
-libc_bind (int sockfd, const struct sockaddr *addr, socklen_t addrlen)
-{
- swrap_bind_symbol_libc (bind);
-
- return swrap.libc.symbols._libc_bind.f (sockfd, addr, addrlen);
-}
-
-int
-libc_close (int fd)
-{
- swrap_bind_symbol_libc (close);
-
- return swrap.libc.symbols._libc_close.f (fd);
-}
-
-int
-libc_connect (int sockfd, const struct sockaddr *addr, socklen_t addrlen)
-{
- swrap_bind_symbol_libc (connect);
-
- return swrap.libc.symbols._libc_connect.f (sockfd, addr, addrlen);
-}
-
-#if 0
-/* TBD: dup and dup2 to be implemented later */
-int
-libc_dup (int fd)
-{
- swrap_bind_symbol_libc (dup);
-
- return swrap.libc.symbols._libc_dup.f (fd);
-}
-
-int
-libc_dup2 (int oldfd, int newfd)
-{
- swrap_bind_symbol_libc (dup2);
-
- return swrap.libc.symbols._libc_dup2.f (oldfd, newfd);
-}
-#endif
-
-#ifdef HAVE_EVENTFD
-int
-libc_eventfd (int count, int flags)
-{
- swrap_bind_symbol_libc (eventfd);
-
- return swrap.libc.symbols._libc_eventfd.f (count, flags);
-}
-#endif
-
-DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE int
-libc_vfcntl (int fd, int cmd, va_list ap)
-{
- long int args[4];
- int rc;
- int i;
-
- swrap_bind_symbol_libc (fcntl);
-
- for (i = 0; i < 4; i++)
- {
- args[i] = va_arg (ap, long int);
- }
-
- rc = swrap.libc.symbols._libc_fcntl.f (fd,
- cmd,
- args[0], args[1], args[2], args[3]);
-
- return rc;
-}
-
-DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE int
-libc_vioctl (int fd, int cmd, va_list ap)
-{
- long int args[4];
- int rc;
- int i;
-
- swrap_bind_symbol_libc (ioctl);
-
- for (i = 0; i < 4; i++)
- {
- args[i] = va_arg (ap, long int);
- }
-
- rc = swrap.libc.symbols._libc_ioctl.f (fd,
- cmd,
- args[0], args[1], args[2], args[3]);
-
- return rc;
-}
-
-int
-libc_getpeername (int sockfd, struct sockaddr *addr, socklen_t * addrlen)
-{
- swrap_bind_symbol_libc (getpeername);
-
- return swrap.libc.symbols._libc_getpeername.f (sockfd, addr, addrlen);
-}
-
-int
-libc_getsockname (int sockfd, struct sockaddr *addr, socklen_t * addrlen)
-{
- swrap_bind_symbol_libc (getsockname);
-
- return swrap.libc.symbols._libc_getsockname.f (sockfd, addr, addrlen);
-}
-
-int
-libc_getsockopt (int sockfd,
- int level, int optname, void *optval, socklen_t * optlen)
-{
- swrap_bind_symbol_libc (getsockopt);
-
- return swrap.libc.symbols._libc_getsockopt.f (sockfd,
- level,
- optname, optval, optlen);
-}
-
-int
-libc_listen (int sockfd, int backlog)
-{
- swrap_bind_symbol_libc (listen);
-
- return swrap.libc.symbols._libc_listen.f (sockfd, backlog);
-}
-
-int
-libc_read (int fd, void *buf, size_t count)
-{
- swrap_bind_symbol_libc (read);
-
- return swrap.libc.symbols._libc_read.f (fd, buf, count);
-}
-
-ssize_t
-libc_readv (int fd, const struct iovec * iov, int iovcnt)
-{
- swrap_bind_symbol_libc (readv);
-
- return swrap.libc.symbols._libc_readv.f (fd, iov, iovcnt);
-}
-
-int
-libc_recv (int sockfd, void *buf, size_t len, int flags)
-{
- swrap_bind_symbol_libc (recv);
-
- return swrap.libc.symbols._libc_recv.f (sockfd, buf, len, flags);
-}
-
-int
-libc_recvfrom (int sockfd,
- void *buf,
- size_t len,
- int flags, struct sockaddr *src_addr, socklen_t * addrlen)
-{
- swrap_bind_symbol_libc (recvfrom);
-
- return swrap.libc.symbols._libc_recvfrom.f (sockfd,
- buf,
- len, flags, src_addr, addrlen);
-}
-
-int
-libc_recvmsg (int sockfd, struct msghdr *msg, int flags)
-{
- swrap_bind_symbol_libc (recvmsg);
-
- return swrap.libc.symbols._libc_recvmsg.f (sockfd, msg, flags);
-}
-
-int
-libc_send (int sockfd, const void *buf, size_t len, int flags)
-{
- swrap_bind_symbol_libc (send);
-
- return swrap.libc.symbols._libc_send.f (sockfd, buf, len, flags);
-}
-
-int
-libc_sendmsg (int sockfd, const struct msghdr *msg, int flags)
-{
- swrap_bind_symbol_libc (sendmsg);
-
- return swrap.libc.symbols._libc_sendmsg.f (sockfd, msg, flags);
-}
-
-int
-libc_sendto (int sockfd,
- const void *buf,
- size_t len,
- int flags, const struct sockaddr *dst_addr, socklen_t addrlen)
-{
- swrap_bind_symbol_libc (sendto);
-
- return swrap.libc.symbols._libc_sendto.f (sockfd,
- buf,
- len, flags, dst_addr, addrlen);
-}
-
-int
-libc_setsockopt (int sockfd,
- int level, int optname, const void *optval, socklen_t optlen)
-{
- swrap_bind_symbol_libc (setsockopt);
-
- return swrap.libc.symbols._libc_setsockopt.f (sockfd,
- level,
- optname, optval, optlen);
-}
-
-int
-libc_socket (int domain, int type, int protocol)
-{
- swrap_bind_symbol_libc (socket);
-
- return swrap.libc.symbols._libc_socket.f (domain, type, protocol);
-}
-
-int
-libc_socketpair (int domain, int type, int protocol, int sv[2])
-{
- swrap_bind_symbol_libc (socketpair);
-
- return swrap.libc.symbols._libc_socketpair.f (domain, type, protocol, sv);
-}
-
-ssize_t
-libc_write (int fd, const void *buf, size_t count)
-{
- swrap_bind_symbol_libc (write);
-
- return swrap.libc.symbols._libc_write.f (fd, buf, count);
-}
-
-ssize_t
-libc_writev (int fd, const struct iovec * iov, int iovcnt)
-{
- swrap_bind_symbol_libc (writev);
-
- return swrap.libc.symbols._libc_writev.f (fd, iov, iovcnt);
-}
-
-int
-libc_shutdown (int fd, int how)
-{
- swrap_bind_symbol_libc (shutdown);
-
- return swrap.libc.symbols._libc_shutdown.f (fd, how);
-}
-
-int
-libc_select (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- struct timeval *__restrict __timeout)
-{
- swrap_bind_symbol_libc (select);
-
- return swrap.libc.symbols._libc_select.f (__nfds, __readfds,
- __writefds,
- __exceptfds, __timeout);
-}
-
-#ifdef __USE_XOPEN2K
-int
-libc_pselect (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- const struct timespec *__restrict __timeout,
- const __sigset_t * __restrict __sigmask)
-{
- swrap_bind_symbol_libc (pselect);
-
- return swrap.libc.symbols._libc_pselect.f (__nfds, __readfds,
- __writefds,
- __exceptfds,
- __timeout, __sigmask);
-}
-#endif
-
-int
-libc_epoll_create (int __size)
-{
- swrap_bind_symbol_libc (epoll_create);
-
- return swrap.libc.symbols._libc_epoll_create.f (__size);
-}
-
-int
-libc_epoll_create1 (int __flags)
-{
- swrap_bind_symbol_libc (epoll_create1);
-
- return swrap.libc.symbols._libc_epoll_create1.f (__flags);
-}
-
-int
-libc_epoll_ctl (int __epfd, int __op, int __fd, struct epoll_event *__event)
-{
- swrap_bind_symbol_libc (epoll_ctl);
-
- return swrap.libc.symbols._libc_epoll_ctl.f (__epfd, __op, __fd, __event);
-}
-
-int
-libc_epoll_wait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout)
-{
- swrap_bind_symbol_libc (epoll_wait);
-
- return swrap.libc.symbols._libc_epoll_wait.f (__epfd, __events,
- __maxevents, __timeout);
-}
-
-int
-libc_epoll_pwait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout, const __sigset_t * __ss)
-{
- swrap_bind_symbol_libc (epoll_pwait);
-
- return swrap.libc.symbols._libc_epoll_pwait.f (__epfd, __events,
- __maxevents, __timeout,
- __ss);
-}
-
-int
-libc_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
-{
- swrap_bind_symbol_libc (poll);
-
- return swrap.libc.symbols._libc_poll.f (__fds, __nfds, __timeout);
-}
-
-#ifdef __USE_GNU
-int
-libc_ppoll (struct pollfd *__fds, nfds_t __nfds,
- const struct timespec *__timeout, const __sigset_t * __ss)
-{
- swrap_bind_symbol_libc (ppoll);
-
- return swrap.libc.symbols._libc_ppoll.f (__fds, __nfds, __timeout, __ss);
-}
-#endif
-
-static void
-swrap_thread_prepare (void)
-{
- SWRAP_LOCK_ALL;
-}
-
-static void
-swrap_thread_parent (void)
-{
- SWRAP_UNLOCK_ALL;
-}
-
-static void
-swrap_thread_child (void)
-{
- SWRAP_UNLOCK_ALL;
-}
-
-/****************************
- * CONSTRUCTOR
- ***************************/
-void
-swrap_constructor (void)
-{
- /*
- * If we hold a lock and the application forks, then the child
- * is not able to unlock the mutex and we are in a deadlock.
- * This should prevent such deadlocks.
- */
- pthread_atfork (&swrap_thread_prepare,
- &swrap_thread_parent, &swrap_thread_child);
-}
-
-/****************************
- * DESTRUCTOR
- ***************************/
-
-/*
- * This function is called when the library is unloaded and makes sure that
- * sockets get closed and the unix file for the socket are unlinked.
- */
-void
-swrap_destructor (void)
-{
- if (swrap.libc.handle != NULL)
- {
- dlclose (swrap.libc.handle);
- }
- if (swrap.libc.socket_handle)
- {
- dlclose (swrap.libc.socket_handle);
- }
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.h b/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.h
deleted file mode 100644
index 9e85ecf2b6c..00000000000
--- a/extras/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.h
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Copyright (c) 2005-2008 Jelmer Vernooij <jelmer@samba.org>
- * Copyright (C) 2006-2014 Stefan Metzmacher <metze@samba.org>
- * Copyright (C) 2013-2014 Andreas Schneider <asn@samba.org>
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the author nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
-/*
- Socket wrapper library. Passes all socket communication over
- unix domain sockets if the environment variable SOCKET_WRAPPER_DIR
- is set.
-*/
-
-#ifndef included_vcom_socket_wrapper_h
-#define included_vcom_socket_wrapper_h
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <sys/select.h>
-#include <sys/epoll.h>
-#include <poll.h>
-#include <sys/uio.h>
-#include <stdlib.h>
-
-
-/* GCC have printf type attribute check. */
-#ifdef HAVE_FUNCTION_ATTRIBUTE_FORMAT
-#define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
-#else
-#define PRINTF_ATTRIBUTE(a,b)
-#endif /* HAVE_FUNCTION_ATTRIBUTE_FORMAT */
-
-#define HAVE_CONSTRUCTOR_ATTRIBUTE
-#ifdef HAVE_CONSTRUCTOR_ATTRIBUTE
-#define CONSTRUCTOR_ATTRIBUTE __attribute__ ((constructor))
-#else
-#define CONSTRUCTOR_ATTRIBUTE
-#endif /* HAVE_CONSTRUCTOR_ATTRIBUTE */
-
-#define HAVE_DESTRUCTOR_ATTRIBUTE
-#ifdef HAVE_DESTRUCTOR_ATTRIBUTE
-#define DESTRUCTOR_ATTRIBUTE __attribute__ ((destructor))
-#else
-#define DESTRUCTOR_ATTRIBUTE
-#endif
-
-#define HAVE_ADDRESS_SANITIZER_ATTRIBUTE
-#ifdef HAVE_ADDRESS_SANITIZER_ATTRIBUTE
-#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE __attribute__((no_sanitize_address))
-#else
-#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE
-#endif
-
-/*
- * IMPORTANT
- *
- * Functions especially from libc need to be loaded individually, you can't load
- * all at once or gdb will segfault at startup. The same applies to valgrind and
- * has probably something todo with with the linker.
- * So we need load each function at the point it is called the first time.
- */
-#ifdef HAVE_ACCEPT4
-int
-libc_accept4 (int sockfd,
- struct sockaddr *addr, socklen_t * addrlen, int flags);
-#else /* HAVE_ACCEPT4 */
-int libc_accept (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
-#endif /* HAVE_ACCEPT4 */
-
-int libc_bind (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
-
-int libc_close (int fd);
-
-int libc_connect (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
-
-#if 0
-/* TBD: dup and dup2 to be implemented later */
-int libc_dup (int fd);
-
-int libc_dup2 (int oldfd, int newfd);
-#endif
-
-#ifdef HAVE_EVENTFD
-int libc_eventfd (int count, int flags);
-#endif
-
-DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE int
-libc_vfcntl (int fd, int cmd, va_list ap);
-
-DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE int
-libc_vioctl (int fd, int cmd, va_list ap);
-
-int libc_getpeername (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
-
-int libc_getsockname (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
-
-int
-libc_getsockopt (int sockfd,
- int level, int optname, void *optval, socklen_t * optlen);
-
-int libc_listen (int sockfd, int backlog);
-
-int libc_read (int fd, void *buf, size_t count);
-
-ssize_t libc_readv (int fd, const struct iovec *iov, int iovcnt);
-
-int libc_recv (int sockfd, void *buf, size_t len, int flags);
-
-int
-libc_recvfrom (int sockfd,
- void *buf,
- size_t len,
- int flags, struct sockaddr *src_addr, socklen_t * addrlen);
-
-int libc_recvmsg (int sockfd, struct msghdr *msg, int flags);
-
-int libc_send (int sockfd, const void *buf, size_t len, int flags);
-
-int libc_sendmsg (int sockfd, const struct msghdr *msg, int flags);
-
-int
-libc_sendto (int sockfd,
- const void *buf,
- size_t len,
- int flags, const struct sockaddr *dst_addr, socklen_t addrlen);
-
-int
-libc_setsockopt (int sockfd,
- int level, int optname, const void *optval,
- socklen_t optlen);
-
-int libc_socket (int domain, int type, int protocol);
-
-int libc_socketpair (int domain, int type, int protocol, int sv[2]);
-
-ssize_t libc_write (int fd, const void *buf, size_t count);
-
-ssize_t libc_writev (int fd, const struct iovec *iov, int iovcnt);
-
-int libc_shutdown (int fd, int how);
-
-int
-libc_select (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- struct timeval *__restrict __timeout);
-
-#ifdef __USE_XOPEN2K
-int
-libc_pselect (int __nfds, fd_set * __restrict __readfds,
- fd_set * __restrict __writefds,
- fd_set * __restrict __exceptfds,
- const struct timespec *__restrict __timeout,
- const __sigset_t * __restrict __sigmask);
-#endif
-
-int libc_epoll_create (int __size);
-
-int libc_epoll_create1 (int __flags);
-
-int libc_epoll_ctl (int __epfd, int __op, int __fd,
- struct epoll_event *__event);
-
-int libc_epoll_wait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout);
-
-int libc_epoll_pwait (int __epfd, struct epoll_event *__events,
- int __maxevents, int __timeout,
- const __sigset_t * __ss);
-
-int libc_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
-
-#ifdef __USE_GNU
-int libc_ppoll (struct pollfd *__fds, nfds_t __nfds,
- const struct timespec *__timeout, const __sigset_t * __ss);
-#endif
-
-void swrap_constructor (void);
-
-void swrap_destructor (void);
-
-#endif /* included_vcom_socket_wrapper_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */