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-rw-r--r--vlib-api/vlibsocket/api.h79
-rw-r--r--vlib-api/vlibsocket/sock_test.c144
-rw-r--r--vlib-api/vlibsocket/sockclnt.api50
-rw-r--r--vlib-api/vlibsocket/sockclnt_vlib.c192
-rw-r--r--vlib-api/vlibsocket/socksvr_vlib.c646
-rw-r--r--vlib-api/vlibsocket/vl_socket_api_h.h25
-rw-r--r--vlib-api/vlibsocket/vl_socket_msg_enum.h33
7 files changed, 1169 insertions, 0 deletions
diff --git a/vlib-api/vlibsocket/api.h b/vlib-api/vlibsocket/api.h
new file mode 100644
index 00000000000..3477f9560c9
--- /dev/null
+++ b/vlib-api/vlibsocket/api.h
@@ -0,0 +1,79 @@
+/*
+ *------------------------------------------------------------------
+ * api.h
+ *
+ * Copyright (c) 2009 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_vlibsocket_api_h
+#define included_vlibsocket_api_h
+
+#include <vlibapi/api.h>
+
+typedef struct {
+ /* Server port number */
+ int portno;
+
+ /* By default, localhost... */
+ u32 bind_address;
+
+ /*
+ * (listen, server, client) registrations. Shared memory
+ * registrations are in shared memory
+ */
+ vl_api_registration_t *registration_pool;
+ /*
+ * Chain-drag variables, so message API handlers
+ * (generally) don't know whether they're talking to a socket
+ * or to a shared-memory connection.
+ */
+ vl_api_registration_t *current_rp;
+ unix_file_t *current_uf;
+ /* One input buffer, shared across all sockets */
+ i8 *input_buffer;
+} socket_main_t;
+
+socket_main_t socket_main;
+
+void socksvr_add_pending_output (struct unix_file * uf,
+ struct vl_api_registration_ * cf,
+ u8 * buffer, uword buffer_bytes);
+
+#define SOCKSVR_DEFAULT_PORT 32741 /* whatever */
+
+void vl_free_socket_registration_index (u32 pool_index);
+void vl_socket_process_msg (struct unix_file *uf,
+ struct vl_api_registration_ *rp, i8 *input_v);
+clib_error_t * vl_socket_read_ready (struct unix_file * uf);
+void vl_socket_add_pending_output (struct unix_file * uf,
+ struct vl_api_registration_ * rp,
+ u8 * buffer,
+ uword buffer_bytes);
+clib_error_t * vl_socket_write_ready (struct unix_file * uf);
+void vl_socket_api_send (vl_api_registration_t *rp, u8 *elem) ;
+void vl_socket_api_send_with_data (vl_api_registration_t *rp,
+ u8 *elem, u8 *data_vector);
+void vl_socket_api_send_with_length (vl_api_registration_t *rp,
+ u8 *elem, u32 msg_length);
+void vl_socket_api_send_with_length_no_free (vl_api_registration_t *rp,
+ u8 *elem, u32 msg_length);
+u32 sockclnt_open_index (char *client_name, char *hostname, int port);
+void sockclnt_close_index (u32 index);
+void vl_client_msg_api_send (vl_api_registration_t *cm, u8 *elem);
+vl_api_registration_t *sockclnt_get_registration (u32 index);
+void socksvr_set_port (u16 port);
+void socksvr_set_bind_address (u32 bind_address);
+
+#endif /* included_vlibsocket_api_h */
diff --git a/vlib-api/vlibsocket/sock_test.c b/vlib-api/vlibsocket/sock_test.c
new file mode 100644
index 00000000000..cfae32f68fa
--- /dev/null
+++ b/vlib-api/vlibsocket/sock_test.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2015 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+
+#define SOCKCLNT_SERVER_PORT 32741 /* whatever */
+
+typedef signed char i8;
+typedef signed short i16;
+typedef signed int i32;
+typedef signed long long i64;
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+typedef unsigned long long u64;
+typedef unsigned long uword;
+
+#define VL_API_PACKED(x) x __attribute__ ((packed))
+
+typedef VL_API_PACKED(struct _vl_api_sockclnt_create {
+ u16 _vl_msg_id;
+ u8 name[64];
+ u32 context;
+}) vl_api_sockclnt_create_t;
+
+typedef VL_API_PACKED(struct _vl_api_sockclnt_create_reply {
+ u16 _vl_msg_id;
+ i32 response;
+ u64 handle;
+ u32 index;
+ u32 context;
+}) vl_api_sockclnt_create_reply_t;
+
+typedef VL_API_PACKED(struct _vl_api_sockclnt_delete {
+ u16 _vl_msg_id;
+ u32 index;
+ u64 handle;
+}) vl_api_sockclnt_delete_t;
+
+typedef VL_API_PACKED(struct _vl_api_sockclnt_delete_reply {
+ u16 _vl_msg_id;
+ i32 response;
+ u64 handle;
+}) vl_api_sockclnt_delete_reply_t;
+
+void error(char *msg)
+{
+ perror(msg);
+ exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+ int sockfd, portno, n;
+ struct sockaddr_in serv_addr;
+ struct hostent *server;
+ char buffer[256];
+ int i;
+ u32 nbytes;
+ vl_api_sockclnt_create_t *mp;
+ vl_api_sockclnt_create_reply_t *rp;
+ char *rdptr;
+ int total_bytes;
+
+ for (i = 0; i < 1; i++) {
+ portno = SOCKCLNT_SERVER_PORT;
+ sockfd = socket(AF_INET, SOCK_STREAM, 0);
+ if (sockfd < 0)
+ error("ERROR opening socket");
+ server = gethostbyname("localhost");
+ if (server == NULL) {
+ fprintf(stderr,"ERROR, no such host\n");
+ exit(0);
+ }
+ bzero((char *) &serv_addr, sizeof(serv_addr));
+ serv_addr.sin_family = AF_INET;
+ bcopy((char *)server->h_addr,
+ (char *)&serv_addr.sin_addr.s_addr,
+ server->h_length);
+ serv_addr.sin_port = htons(portno);
+ if (connect(sockfd,(const void *)&serv_addr,sizeof(serv_addr)) < 0)
+ error("ERROR connecting");
+
+ memset(buffer, 0, sizeof(buffer));
+
+ mp = (vl_api_sockclnt_create_t *)buffer;
+ mp->_vl_msg_id = ntohs(8); /* VL_API_SOCKCLNT_CREATE */
+ strncpy ((char *) mp->name, "socket-test", sizeof(mp->name)-1);
+ mp->name[sizeof(mp->name)-1]=0;
+ mp->context = 0xfeedface;
+ /* length of the message, including the length itself */
+ nbytes = sizeof (*mp) + sizeof (nbytes);
+ nbytes = ntohl(nbytes);
+ n = write(sockfd, &nbytes, sizeof(nbytes));
+ if (n < 0)
+ error("ERROR writing len to socket");
+ n = write(sockfd, mp, sizeof (*mp));
+ if (n < 0)
+ error("ERROR writing msg to socket");
+
+ memset(buffer, 0, sizeof (buffer));
+
+ total_bytes = 0;
+ rdptr = buffer;
+ do {
+ n = read(sockfd,rdptr,sizeof(buffer) - (rdptr - buffer));
+ if (n < 0)
+ error("ERROR reading from socket");
+ printf ("read %d bytes\n", n);
+ total_bytes += n;
+ rdptr += n;
+ } while (total_bytes < sizeof (vl_api_sockclnt_create_reply_t) + 4);
+
+ rp = (vl_api_sockclnt_create_reply_t *)(buffer + 4);
+ /* VL_API_SOCKCLNT_CREATE_REPLY */
+ if (ntohs(rp->_vl_msg_id) != 9) {
+ printf ("WARNING: msg id %d\n", ntohs(rp->_vl_msg_id));
+ }
+
+ printf ("response %d, handle 0x%llx, index %d, context 0x%x\n",
+ ntohl(rp->response), rp->handle, rp->index, rp->context);
+ close(sockfd);
+ }
+ return 0;
+}
diff --git a/vlib-api/vlibsocket/sockclnt.api b/vlib-api/vlibsocket/sockclnt.api
new file mode 100644
index 00000000000..e0a7505fe87
--- /dev/null
+++ b/vlib-api/vlibsocket/sockclnt.api
@@ -0,0 +1,50 @@
+/* Hey Emacs use -*- mode: C -*- */
+
+/*
+ *------------------------------------------------------------------
+ * sockclnt.api - API message(s) to hook up clients, pass traffic
+ * to client processes via TCP sockets
+ *
+ * Copyright (c) 2009 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.
+ *------------------------------------------------------------------
+ */
+
+/*
+ * Create a socket client registration
+ */
+define sockclnt_create {
+ u8 name[64]; /* for show, find by name, whatever */
+ u32 context; /* opaque value to be returned in the reply */
+};
+
+define sockclnt_create_reply {
+ i32 response; /* Non-negative = success */
+ u64 handle; /* handle by which vlib knows this client */
+ u32 index; /* index, used e.g. by API trace replay */
+ u32 context; /* opaque value from the create request */
+};
+
+/*
+ * Delete a client registration
+ */
+define sockclnt_delete {
+ u32 index; /* index, used e.g. by API trace replay */
+ u64 handle; /* handle by which vlib knows this client */
+};
+
+define sockclnt_delete_reply {
+ i32 response; /* Non-negative = success */
+ u64 handle; /* in case the client wonders */
+};
+
diff --git a/vlib-api/vlibsocket/sockclnt_vlib.c b/vlib-api/vlibsocket/sockclnt_vlib.c
new file mode 100644
index 00000000000..8ea4f3083a3
--- /dev/null
+++ b/vlib-api/vlibsocket/sockclnt_vlib.c
@@ -0,0 +1,192 @@
+/*
+ *------------------------------------------------------------------
+ * sockclnt_vlib.c
+ *
+ * Copyright (c) 2009 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 <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <netinet/in.h>
+#include <sys/ioctl.h>
+#include <vppinfra/byte_order.h>
+#include <netdb.h>
+
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+
+#include <vlibsocket/vl_socket_msg_enum.h>
+
+#define vl_typedefs /* define message structures */
+#include <vlibsocket/vl_socket_api_h.h>
+#undef vl_typedefs
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <vlibsocket/vl_socket_api_h.h>
+#undef vl_printfun
+
+/* instantiate all the endian swap functions we know about */
+#define vl_endianfun
+#include <vlibsocket/vl_socket_api_h.h>
+#undef vl_endianfun
+
+static void vl_api_sockclnt_create_reply_t_handler (
+ vl_api_sockclnt_create_reply_t *mp)
+{
+ vl_api_registration_t *rp = socket_main.current_rp;
+
+ rp->server_handle = mp->handle;
+ rp->server_index = mp->index;
+}
+
+static void vl_api_sockclnt_delete_reply_t_handler (
+ vl_api_sockclnt_delete_reply_t *mp)
+{
+ unix_main_t *um = &unix_main;
+ unix_file_t *uf = socket_main.current_uf;
+ vl_api_registration_t *rp = socket_main.current_rp;
+
+ unix_file_del (um, uf);
+ vl_free_socket_registration_index (rp->vl_api_registration_pool_index);
+}
+
+u32 sockclnt_open_index (char *client_name, char *hostname, int port)
+{
+ vl_api_registration_t * rp;
+ unix_main_t * um = &unix_main;
+ unix_file_t template = {0};
+ int sockfd;
+ int one = 1;
+ int rv;
+ struct sockaddr_in serv_addr;
+ struct hostent *server;
+ vl_api_sockclnt_create_t *mp;
+ char my_hostname[64];
+
+ server = gethostbyname(hostname);
+ if (server == NULL) {
+ clib_warning("Couldn't translate server name %s", hostname);
+ return ~0;
+ }
+
+ /* Set up non-blocking server socket on CLIENT_API_SERVER_PORT */
+ sockfd = socket(AF_INET, SOCK_STREAM, 0);
+
+ if (sockfd < 0) {
+ clib_unix_warning ("socket");
+ return ~0;
+ }
+
+ bzero((char *) &serv_addr, sizeof(serv_addr));
+ serv_addr.sin_family = AF_INET;
+ bcopy((char *)server->h_addr,
+ (char *)&serv_addr.sin_addr.s_addr,
+ server->h_length);
+ serv_addr.sin_port = htons(port);
+
+ if (connect(sockfd,(const void *)&serv_addr,sizeof(serv_addr)) < 0) {
+ clib_unix_warning("Connect failure to (%s, %d)",
+ hostname, port);
+ return ~0;
+ }
+
+ rv = ioctl (sockfd, FIONBIO, &one);
+ if (rv < 0) {
+ clib_unix_warning ("FIONBIO");
+ return ~0;
+ }
+
+ pool_get (socket_main.registration_pool, rp);
+ memset(rp, 0, sizeof(*rp));
+ rp->registration_type = REGISTRATION_TYPE_SOCKET_CLIENT;
+ rp->vl_api_registration_pool_index = rp - socket_main.registration_pool;
+
+ template.read_function = vl_socket_read_ready;
+ template.write_function = vl_socket_write_ready;
+ template.file_descriptor = sockfd;
+ template.private_data = rp - socket_main.registration_pool;
+
+ rp->unix_file_index = unix_file_add (um, &template);
+ rp->name = format(0, "%s:%d", hostname, port);
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ mp->_vl_msg_id = ntohs(VL_API_SOCKCLNT_CREATE);
+ mp->context = rp - socket_main.registration_pool;
+
+ if (gethostname(my_hostname, sizeof (my_hostname)) < 0) {
+ clib_unix_warning("gethostname");
+ strncpy (my_hostname, "unknown!", sizeof(my_hostname)-1);
+ }
+ strncpy ((char *)mp->name, my_hostname, sizeof (mp->name)-1);
+
+ vl_msg_api_send (rp, (u8 *)mp);
+ return rp - socket_main.registration_pool;
+}
+
+void sockclnt_close_index (u32 index)
+{
+ vl_api_sockclnt_delete_t *mp;
+ vl_api_registration_t *rp;
+
+ /* Don't crash / assert if fed garbage */
+ if (pool_is_free_index (socket_main.registration_pool, index)) {
+ clib_warning ("registration_pool index %d already free", index);
+ return;
+ }
+ rp = pool_elt_at_index(socket_main.registration_pool, index);
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ mp->_vl_msg_id = ntohs(VL_API_SOCKCLNT_DELETE);
+ mp->handle = rp->server_handle;
+ mp->index = rp->server_index;
+ vl_msg_api_send (rp, (u8 *)mp);
+}
+
+vl_api_registration_t *sockclnt_get_registration (u32 index)
+{
+ return pool_elt_at_index (socket_main.registration_pool, index);
+}
+
+/*
+ * Both rx and tx msgs MUST be initialized, or we'll have
+ * precisely no idea how many bytes to write into the API trace...
+ */
+#define foreach_sockclnt_api_msg \
+_(SOCKCLNT_CREATE_REPLY, sockclnt_create_reply) \
+_(SOCKCLNT_DELETE_REPLY, sockclnt_delete_reply)
+
+
+static clib_error_t *
+sockclnt_vlib_api_init (vlib_main_t *vm)
+{
+#define _(N,n) \
+ vl_msg_api_set_handlers(VL_API_##N, #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_sockclnt_api_msg;
+#undef _
+ return 0;
+}
+
+VLIB_API_INIT_FUNCTION(sockclnt_vlib_api_init);
diff --git a/vlib-api/vlibsocket/socksvr_vlib.c b/vlib-api/vlibsocket/socksvr_vlib.c
new file mode 100644
index 00000000000..91dff22f631
--- /dev/null
+++ b/vlib-api/vlibsocket/socksvr_vlib.c
@@ -0,0 +1,646 @@
+/*
+ *------------------------------------------------------------------
+ * socksvr_vlib.c
+ *
+ * Copyright (c) 2009 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 <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <sys/ioctl.h>
+#include <vppinfra/byte_order.h>
+
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#include <vlibsocket/api.h>
+#include <vlibmemory/api.h>
+
+#include <vlibsocket/vl_socket_msg_enum.h> /* enumerate all vlib messages */
+
+#define vl_typedefs /* define message structures */
+#include <vlibsocket/vl_socket_api_h.h>
+#undef vl_typedefs
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <vlibsocket/vl_socket_api_h.h>
+#undef vl_printfun
+
+/* instantiate all the endian swap functions we know about */
+#define vl_endianfun
+#include <vlibsocket/vl_socket_api_h.h>
+#undef vl_endianfun
+
+socket_main_t socket_main;
+
+void dump_socket_clients (vlib_main_t *vm, api_main_t *am)
+{
+ vl_api_registration_t *reg;
+ socket_main_t *sm = &socket_main;
+ unix_main_t *um = &unix_main;
+ unix_file_t *f;
+
+ /*
+ * Must have at least one active client, not counting the
+ * REGISTRATION_TYPE_SOCKET_LISTEN bind/accept socket
+ */
+ if (pool_elts (sm->registration_pool) < 2)
+ return;
+
+ vlib_cli_output (vm, "TCP socket clients");
+ vlib_cli_output (vm, "%16s %8s", "Name", "Fildesc");
+ pool_foreach (reg, sm->registration_pool,
+ ({
+ if (reg->registration_type == REGISTRATION_TYPE_SOCKET_SERVER) {
+ f = pool_elt_at_index (um->file_pool, reg->unix_file_index);
+ vlib_cli_output (vm, "%16s %8d",
+ reg->name, f->file_descriptor);
+ }
+ }));
+}
+
+void
+vl_socket_api_send (vl_api_registration_t *rp, u8 *elem)
+{
+ u32 nbytes = 4; /* for the length... */
+ u16 msg_id = ntohs(*(u16 *)elem);
+ u32 msg_length;
+ u32 tmp;
+ api_main_t *am = &api_main;
+
+ ASSERT(rp->registration_type > REGISTRATION_TYPE_SHMEM);
+
+ if (msg_id >= vec_len(am->api_trace_cfg)) {
+ clib_warning("id out of range: %d", msg_id);
+ vl_msg_api_free((void *)elem);
+ return;
+ }
+
+ msg_length = am->api_trace_cfg[msg_id].size;
+ nbytes += msg_length;
+ tmp = clib_host_to_net_u32 (nbytes);
+
+ vl_socket_add_pending_output (rp->unix_file_index
+ + unix_main.file_pool,
+ rp->vl_api_registration_pool_index
+ + socket_main.registration_pool,
+ (u8 *) &tmp,
+ sizeof(tmp));
+ vl_socket_add_pending_output (rp->unix_file_index
+ + unix_main.file_pool,
+ rp->vl_api_registration_pool_index
+ + socket_main.registration_pool,
+ elem, msg_length);
+ vl_msg_api_free((void *)elem);
+}
+
+void vl_socket_api_send_with_data (vl_api_registration_t *rp,
+ u8 *elem, u8 *data_vector)
+{
+ u32 nbytes = 4; /* for the length... */
+ u16 msg_id = ntohs(*(u16 *)elem);
+ u32 msg_length;
+ u32 tmp;
+ api_main_t *am = &api_main;
+
+ ASSERT(rp->registration_type > REGISTRATION_TYPE_SHMEM);
+
+ if (msg_id >= vec_len(am->api_trace_cfg)) {
+ clib_warning("id out of range: %d", msg_id);
+ vec_free(data_vector);
+ vl_msg_api_free((void *)elem);
+ return;
+ }
+
+ msg_length = am->api_trace_cfg[msg_id].size;
+ nbytes += msg_length;
+ nbytes += vec_len(data_vector);
+
+ /* Length in network byte order */
+ tmp = clib_host_to_net_u32(nbytes);
+
+ vl_socket_add_pending_output (rp->unix_file_index
+ + unix_main.file_pool,
+ rp->vl_api_registration_pool_index
+ + socket_main.registration_pool,
+ (u8 *) &tmp,
+ sizeof(tmp));
+ vl_socket_add_pending_output (rp->unix_file_index
+ + unix_main.file_pool,
+ rp->vl_api_registration_pool_index
+ + socket_main.registration_pool,
+ elem, msg_length);
+ vl_socket_add_pending_output (rp->unix_file_index
+ + unix_main.file_pool,
+ rp->vl_api_registration_pool_index
+ + socket_main.registration_pool,
+ data_vector, vec_len(data_vector));
+ vl_msg_api_free((void *)elem);
+}
+
+static inline void
+vl_socket_api_send_with_length_internal (vl_api_registration_t *rp,
+ u8 *elem, u32 msg_length, int free)
+{
+ u32 nbytes = 4; /* for the length... */
+ u16 msg_id = ntohs(*(u16 *)elem);
+ u32 tmp;
+ api_main_t *am = &api_main;
+
+ ASSERT(rp->registration_type > REGISTRATION_TYPE_SHMEM);
+
+ if (msg_id >= vec_len(am->api_trace_cfg)) {
+ clib_warning("id out of range: %d", msg_id);
+ if (free)
+ vl_msg_api_free((void *)elem);
+ return;
+ }
+
+ nbytes += msg_length;
+
+ /* Length in network byte order */
+ tmp = clib_host_to_net_u32(nbytes);
+
+ vl_socket_add_pending_output (rp->unix_file_index
+ + unix_main.file_pool,
+ rp->vl_api_registration_pool_index
+ + socket_main.registration_pool,
+ (u8 *) &tmp,
+ sizeof(tmp));
+ vl_socket_add_pending_output (rp->unix_file_index
+ + unix_main.file_pool,
+ rp->vl_api_registration_pool_index
+ + socket_main.registration_pool,
+ elem, msg_length);
+ if (free)
+ vl_msg_api_free((void *)elem);
+}
+
+void vl_socket_api_send_with_length (vl_api_registration_t *rp,
+ u8 *elem, u32 msg_length)
+{
+ vl_socket_api_send_with_length_internal(rp,elem,msg_length, 1 /* free */);
+}
+
+void vl_socket_api_send_with_length_no_free (vl_api_registration_t *rp,
+ u8 *elem, u32 msg_length)
+{
+ vl_socket_api_send_with_length_internal(rp,elem,msg_length, 0 /* free */);
+}
+
+void vl_free_socket_registration_index (u32 pool_index)
+{
+ vl_api_registration_t *rp;
+ if (pool_is_free_index (socket_main.registration_pool, pool_index)) {
+ clib_warning ("main pool index %d already free", pool_index);
+ return;
+ }
+ rp = pool_elt_at_index (socket_main.registration_pool, pool_index);
+
+ ASSERT(rp->registration_type != REGISTRATION_TYPE_FREE);
+ vec_free (rp->name);
+ vec_free (rp->unprocessed_input);
+ vec_free (rp->output_vector);
+ rp->registration_type = REGISTRATION_TYPE_FREE;
+ pool_put (socket_main.registration_pool, rp);
+}
+
+static inline void
+socket_process_msg (unix_file_t *uf, vl_api_registration_t *rp, i8 *input_v)
+{
+ u8 *the_msg = (u8 *)(input_v+sizeof(u32));
+ socket_main.current_uf = uf;
+ socket_main.current_rp = rp;
+ vl_msg_api_socket_handler (the_msg);
+ socket_main.current_uf = 0;
+ socket_main.current_rp = 0;
+}
+
+clib_error_t * vl_socket_read_ready (unix_file_t * uf)
+{
+ unix_main_t * um = &unix_main;
+ vl_api_registration_t * rp;
+ int n;
+ i8 *msg_buffer=0;
+ u32 msg_len;
+ u32 save_input_buffer_length = vec_len(socket_main.input_buffer);
+
+ rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
+
+ n = read (uf->file_descriptor, socket_main.input_buffer,
+ vec_len(socket_main.input_buffer));
+
+ if (n <= 0 && errno != EAGAIN) {
+ unix_file_del (um, uf);
+
+ if (!pool_is_free (socket_main.registration_pool, rp)) {
+ u32 index = rp - socket_main.registration_pool;
+ vl_free_socket_registration_index (index);
+ } else {
+ clib_warning("client index %d already free?",
+ rp->vl_api_registration_pool_index);
+ }
+ return 0;
+ }
+
+ _vec_len(socket_main.input_buffer) = n;
+
+ /*
+ * Look for bugs here. This code is tricky because
+ * data read from a stream socket does honor message
+ * boundaries. In the case of a long message (>4K bytes)
+ * we have to do (at least) 2 reads, etc.
+ */
+ do {
+ if (vec_len(rp->unprocessed_input)) {
+ vec_append(rp->unprocessed_input, socket_main.input_buffer);
+ msg_buffer = rp->unprocessed_input;
+ msg_len = rp->unprocessed_msg_length;
+ } else {
+ msg_buffer = socket_main.input_buffer;
+ msg_len = 0;
+ }
+
+ if (msg_len == 0) {
+ /* Length may be split across two reads */
+ if (vec_len(msg_buffer) < sizeof (u32))
+ goto save_and_split;
+
+ /* total length, including msg_len itself, in network byte order */
+ msg_len = clib_net_to_host_u32 (*((u32 *)msg_buffer));
+ }
+
+ /* Happens if the client sent msg_len == 0 */
+ if (msg_len == 0) {
+ clib_warning ("msg_len == 0");
+ goto turf_it;
+ }
+
+ /* We don't have the entire message yet. */
+ if (msg_len > vec_len(msg_buffer)) {
+ save_and_split:
+ /*
+ * if we were using the shared input buffer,
+ * save the fragment.
+ */
+ if (msg_buffer == socket_main.input_buffer) {
+ ASSERT(vec_len(rp->unprocessed_input) == 0);
+ vec_validate (rp->unprocessed_input, vec_len (msg_buffer)-1);
+ memcpy (rp->unprocessed_input, msg_buffer, vec_len(msg_buffer));
+ _vec_len (rp->unprocessed_input) = vec_len (msg_buffer);
+ }
+ _vec_len(socket_main.input_buffer) = save_input_buffer_length;
+ rp->unprocessed_msg_length = msg_len;
+ return 0;
+ }
+
+ socket_process_msg (uf, rp, msg_buffer);
+ if (n > msg_len)
+ vec_delete(msg_buffer, msg_len, 0);
+ else
+ _vec_len(msg_buffer) = 0;
+ n -= msg_len;
+ msg_len = 0;
+ rp->unprocessed_msg_length = 0;
+ } while (n > 0);
+
+turf_it:
+ _vec_len(socket_main.input_buffer) = save_input_buffer_length;
+
+ return 0;
+}
+
+void
+vl_socket_add_pending_output (unix_file_t * uf,
+ vl_api_registration_t * rp,
+ u8 * buffer,
+ uword buffer_bytes)
+{
+ unix_main_t * um = &unix_main;
+
+ vec_add (rp->output_vector, buffer, buffer_bytes);
+ if (vec_len (rp->output_vector) > 0) {
+ int skip_update = 0 != (uf->flags & UNIX_FILE_DATA_AVAILABLE_TO_WRITE);
+ uf->flags |= UNIX_FILE_DATA_AVAILABLE_TO_WRITE;
+ if (! skip_update)
+ um->file_update (uf, UNIX_FILE_UPDATE_MODIFY);
+ }
+}
+
+static void
+socket_del_pending_output (unix_file_t * uf,
+ vl_api_registration_t * rp,
+ uword n_bytes)
+{
+ unix_main_t * um = &unix_main;
+
+ vec_delete (rp->output_vector, n_bytes, 0);
+ if (vec_len (rp->output_vector) <= 0)
+ {
+ int skip_update = 0 == (uf->flags & UNIX_FILE_DATA_AVAILABLE_TO_WRITE);
+ uf->flags &= ~UNIX_FILE_DATA_AVAILABLE_TO_WRITE;
+ if (! skip_update)
+ um->file_update (uf, UNIX_FILE_UPDATE_MODIFY);
+ }
+}
+
+clib_error_t *
+vl_socket_write_ready (unix_file_t * uf)
+{
+ unix_main_t * um = &unix_main;
+ vl_api_registration_t * rp;
+ int n;
+
+ rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
+
+ /* Flush output vector. */
+ n = write (uf->file_descriptor,
+ rp->output_vector, vec_len (rp->output_vector));
+
+ if (n < 0) {
+#if DEBUG > 2
+ clib_warning ("write error, close the file...\n");
+#endif
+ unix_file_del (um, uf);
+
+ vl_free_socket_registration_index (rp - socket_main.registration_pool);
+ return 0;
+ }
+
+ else if (n > 0)
+ socket_del_pending_output (uf, rp, n);
+
+ return 0;
+}
+
+clib_error_t * vl_socket_error_ready (unix_file_t * uf)
+{
+ vl_api_registration_t * rp;
+ unix_main_t * um = &unix_main;
+
+ rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
+ unix_file_del (um, uf);
+ vl_free_socket_registration_index (rp - socket_main.registration_pool);
+
+ return 0;
+}
+
+void socksvr_file_add (unix_main_t *um, int fd)
+{
+ vl_api_registration_t *rp;
+ unix_file_t template = {0};
+
+ pool_get (socket_main.registration_pool, rp);
+ memset(rp, 0, sizeof(*rp));
+
+ template.read_function = vl_socket_read_ready;
+ template.write_function = vl_socket_write_ready;
+ template.error_function = vl_socket_error_ready;
+ template.file_descriptor = fd;
+ template.private_data = rp - socket_main.registration_pool;
+
+ rp->registration_type = REGISTRATION_TYPE_SOCKET_SERVER;
+ rp->vl_api_registration_pool_index = rp - socket_main.registration_pool;
+ rp->unix_file_index = unix_file_add (um, &template);
+}
+
+static clib_error_t * socksvr_accept_ready (unix_file_t * uf)
+{
+ unix_main_t * um = &unix_main;
+ struct sockaddr_in client_addr;
+ int client_fd;
+ int client_len;
+
+ client_len = sizeof(client_addr);
+
+ /*
+ * Supposedly acquires the non-blocking attrib from the
+ * server socket.
+ */
+ client_fd = accept (uf->file_descriptor,
+ (struct sockaddr *)&client_addr,
+ (socklen_t *)&client_len);
+
+ if (client_fd < 0)
+ return clib_error_return_unix (0, "socksvr_accept_ready: accept");
+
+ socksvr_file_add (um, client_fd);
+ return 0;
+}
+
+static clib_error_t * socksvr_bogus_write (unix_file_t * uf)
+{
+ clib_warning ("why am I here?");
+ return 0;
+}
+
+/*
+ * vl_api_sockclnt_create_t_handler
+ */
+void vl_api_sockclnt_create_t_handler (vl_api_sockclnt_create_t *mp)
+{
+ vl_api_registration_t *regp;
+ vl_api_sockclnt_create_reply_t *rp;
+ int rv = 1;
+
+ regp = socket_main.current_rp;
+
+ ASSERT(regp->registration_type == REGISTRATION_TYPE_SOCKET_SERVER);
+
+ regp->name = format(0, "%s%c", mp->name, 0);
+
+ rp = vl_msg_api_alloc(sizeof(*rp));
+ rp->_vl_msg_id = htons(VL_API_SOCKCLNT_CREATE_REPLY);
+ rp->handle = (uword)regp;
+ rp->index = (uword)regp->vl_api_registration_pool_index;
+ rp->context = mp->context;
+ rp->response = htonl(rv);
+
+ vl_msg_api_send (regp, (u8 *)rp);
+}
+
+/*
+ * vl_api_sockclnt_delete_t_handler
+ */
+void vl_api_sockclnt_delete_t_handler (vl_api_sockclnt_delete_t *mp)
+{
+ vl_api_registration_t *regp;
+ vl_api_sockclnt_delete_reply_t *rp;
+
+ if (!pool_is_free_index(socket_main.registration_pool, mp->index)) {
+ regp = pool_elt_at_index(socket_main.registration_pool, mp->index);
+
+ rp = vl_msg_api_alloc(sizeof(*rp));
+ rp->_vl_msg_id = htons(VL_API_SOCKCLNT_DELETE_REPLY);
+ rp->handle = mp->handle;
+ rp->response = htonl(1);
+
+ vl_msg_api_send (regp, (u8 *)rp);
+
+ unix_file_del (&unix_main,
+ unix_main.file_pool + regp->unix_file_index);
+
+ vl_free_socket_registration_index (mp->index);
+ } else {
+ clib_warning("unknown client ID %d", mp->index);
+ }
+}
+
+#define foreach_vlib_api_msg \
+_(SOCKCLNT_CREATE, sockclnt_create) \
+_(SOCKCLNT_DELETE, sockclnt_delete)
+
+static clib_error_t *socksvr_api_init (vlib_main_t * vm)
+{
+ unix_main_t * um = &unix_main;
+ unix_file_t template = {0};
+ int sockfd;
+ int one = 1;
+ int rv;
+ struct sockaddr_in serv_addr;
+ vl_api_registration_t *rp;
+ u16 portno;
+ u32 bind_address;
+
+#define _(N,n) \
+ vl_msg_api_set_handlers(VL_API_##N, #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vlib_api_msg;
+#undef _
+
+ vec_resize(socket_main.input_buffer, 4096);
+
+ /* Set up non-blocking server socket on CLIENT_API_SERVER_PORT */
+ sockfd = socket(AF_INET, SOCK_STREAM, 0);
+
+ if (sockfd < 0) {
+ return clib_error_return_unix (0, "socket");
+ }
+
+ rv = ioctl (sockfd, FIONBIO, &one);
+ if (rv < 0) {
+ return clib_error_return_unix (0, "FIONBIO");
+ }
+
+ rv = setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
+ if (rv < 0) {
+ return clib_error_return_unix (0, "SO_REUSEADDR");
+ }
+
+ bzero((char *) &serv_addr, sizeof(serv_addr));
+ serv_addr.sin_family = AF_INET;
+
+ if (socket_main.bind_address)
+ bind_address = socket_main.bind_address;
+ else
+ bind_address = INADDR_LOOPBACK;
+
+ if (socket_main.portno)
+ portno = socket_main.portno;
+ else
+ portno = SOCKSVR_DEFAULT_PORT;
+
+ serv_addr.sin_port = clib_host_to_net_u16 (portno);
+ serv_addr.sin_addr.s_addr = clib_host_to_net_u32(bind_address);
+
+ if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
+ return clib_error_return_unix (0, "bind");
+ }
+
+ rv = listen(sockfd,5);
+ if (rv < 0) {
+ return clib_error_return_unix (0, "listen");
+ }
+
+ pool_get (socket_main.registration_pool, rp);
+ memset(rp, 0, sizeof(*rp));
+
+ rp->registration_type = REGISTRATION_TYPE_SOCKET_LISTEN;
+
+ template.read_function = socksvr_accept_ready;
+ template.write_function = socksvr_bogus_write;
+ template.file_descriptor = sockfd;
+ template.private_data = rp - socket_main.registration_pool;
+
+ rp->unix_file_index = unix_file_add (um, &template);
+ return 0;
+}
+
+static clib_error_t *
+socket_exit (vlib_main_t * vm)
+{
+ unix_main_t * um = &unix_main;
+ vl_api_registration_t *rp;
+
+ /* Defensive driving in case something wipes out early */
+ if (socket_main.registration_pool) {
+ u32 index;
+ pool_foreach (rp, socket_main.registration_pool, ({
+ unix_file_del (um, um->file_pool + rp->unix_file_index);
+ index = rp->vl_api_registration_pool_index;
+ vl_free_socket_registration_index (index);
+ }));
+ }
+
+ return 0;
+}
+
+VLIB_MAIN_LOOP_EXIT_FUNCTION (socket_exit);
+
+static clib_error_t *
+socksvr_config (vlib_main_t * vm, unformat_input_t * input)
+{
+ int portno;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "port %d", &portno)) {
+ socket_main.portno = portno;
+ } else {
+ return clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, input);
+ }
+ }
+ return socksvr_api_init (vm);
+}
+
+VLIB_CONFIG_FUNCTION (socksvr_config, "socksvr");
+
+/* argument in host byte order */
+void socksvr_set_port (u16 port)
+{
+ socket_main.portno = port;
+}
+
+/* argument in host byte order */
+void socksvr_set_bind_address (u32 bind_address)
+{
+ socket_main.bind_address = bind_address;
+}
+
+clib_error_t *
+vlibsocket_init (vlib_main_t * vm)
+{
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (vlibsocket_init);
diff --git a/vlib-api/vlibsocket/vl_socket_api_h.h b/vlib-api/vlibsocket/vl_socket_api_h.h
new file mode 100644
index 00000000000..7877ba66e1c
--- /dev/null
+++ b/vlib-api/vlibsocket/vl_socket_api_h.h
@@ -0,0 +1,25 @@
+/*
+ *------------------------------------------------------------------
+ * vl_socket_api_h.h - all API headers, in a specific order.
+ *
+ * Copyright (c) 2009 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.
+ *------------------------------------------------------------------
+ */
+
+/*
+ * Add to the bottom of the #include list, or elves will steal your
+ * keyboard in the middle of the night!
+ */
+#include <vlibmemory/vl_memory_api_h.h>
+#include <vlibsocket/sockclnt.api.h>
diff --git a/vlib-api/vlibsocket/vl_socket_msg_enum.h b/vlib-api/vlibsocket/vl_socket_msg_enum.h
new file mode 100644
index 00000000000..13786a08e04
--- /dev/null
+++ b/vlib-api/vlibsocket/vl_socket_msg_enum.h
@@ -0,0 +1,33 @@
+/*
+ *------------------------------------------------------------------
+ * vl_msg_enum.h - Our view of how to number API messages
+ * Clients have their own view, which has to agree with ours.
+ *
+ * Copyright (c) 2009 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 __VL_MSG_ENUM_H__
+#define __VL_MSG_ENUM_H__
+
+#include <vppinfra/byte_order.h>
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+ VL_ILLEGAL_MESSAGE_ID=0,
+#include <vlibsocket/vl_socket_api_h.h>
+} vl_msg_id_t;
+#undef vl_msg_id
+
+#endif /* __VL_MSG_ENUM_H__ */