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-rw-r--r--src/uri/vppcom.c3258
1 files changed, 0 insertions, 3258 deletions
diff --git a/src/uri/vppcom.c b/src/uri/vppcom.c
deleted file mode 100644
index 24475b46606..00000000000
--- a/src/uri/vppcom.c
+++ /dev/null
@@ -1,3258 +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
- * 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 <signal.h>
-#include <svm/svm_fifo_segment.h>
-#include <vlibmemory/api.h>
-#include <vpp/api/vpe_msg_enum.h>
-#include <vnet/session/application_interface.h>
-#include <uri/vppcom.h>
-#include <vlib/unix/unix.h>
-#include <vppinfra/vec_bootstrap.h>
-
-#define vl_typedefs /* define message structures */
-#include <vpp/api/vpe_all_api_h.h>
-#undef vl_typedefs
-
-/* declare message handlers for each api */
-
-#define vl_endianfun /* define message structures */
-#include <vpp/api/vpe_all_api_h.h>
-#undef vl_endianfun
-
-/* instantiate all the print functions we know about */
-#define vl_print(handle, ...)
-#define vl_printfun
-#include <vpp/api/vpe_all_api_h.h>
-#undef vl_printfun
-
-#if (CLIB_DEBUG > 0)
-/* Set VPPCOM_DEBUG 2 for connection debug, 3 for read/write debug output */
-#define VPPCOM_DEBUG 1
-#else
-#define VPPCOM_DEBUG 0
-#endif
-
-/*
- * VPPCOM Private definitions and functions.
- */
-typedef enum
-{
- STATE_APP_START,
- STATE_APP_CONN_VPP,
- STATE_APP_ENABLED,
- STATE_APP_ATTACHED,
-} app_state_t;
-
-typedef enum
-{
- STATE_START,
- STATE_CONNECT,
- STATE_LISTEN,
- STATE_ACCEPT,
- STATE_DISCONNECT,
- STATE_FAILED
-} session_state_t;
-
-typedef struct epoll_event vppcom_epoll_event_t;
-
-typedef struct
-{
- u32 next_sid;
- u32 prev_sid;
- u32 vep_idx;
- vppcom_epoll_event_t ev;
-#define VEP_DEFAULT_ET_MASK (EPOLLIN|EPOLLOUT)
- u32 et_mask;
-} vppcom_epoll_t;
-
-typedef struct
-{
- u8 is_ip4;
- ip46_address_t ip46;
-} vppcom_ip46_t;
-
-typedef struct
-{
- volatile session_state_t state;
-
- svm_fifo_t *server_rx_fifo;
- svm_fifo_t *server_tx_fifo;
- u32 sm_seg_index;
- u64 vpp_session_handle;
- unix_shared_memory_queue_t *vpp_event_queue;
-
- /* Socket configuration state */
- /* TBD: covert 'is_*' vars to bit in u8 flags; */
- u8 is_server;
- u8 is_listen;
- u8 is_cut_thru;
- u8 is_nonblocking;
- u8 is_vep;
- u8 is_vep_session;
- u32 wait_cont_idx;
- vppcom_epoll_t vep;
- u32 vrf;
- vppcom_ip46_t lcl_addr;
- vppcom_ip46_t peer_addr;
- u16 port;
- u8 proto;
- u64 client_queue_address;
- u64 options[16];
-} session_t;
-
-typedef struct vppcom_cfg_t_
-{
- u64 heapsize;
- u64 segment_baseva;
- u32 segment_size;
- u32 add_segment_size;
- u32 preallocated_fifo_pairs;
- u32 rx_fifo_size;
- u32 tx_fifo_size;
- u32 event_queue_size;
- u32 listen_queue_size;
- f64 app_timeout;
- f64 session_timeout;
- f64 accept_timeout;
-} vppcom_cfg_t;
-
-typedef struct vppcom_main_t_
-{
- u8 init;
- u32 *client_session_index_fifo;
- volatile u32 bind_session_index;
- int main_cpu;
-
- /* vpe input queue */
- unix_shared_memory_queue_t *vl_input_queue;
-
- /* API client handle */
- u32 my_client_index;
-
- /* Session pool */
- clib_spinlock_t sessions_lockp;
- session_t *sessions;
-
- /* Hash table for disconnect processing */
- uword *session_index_by_vpp_handles;
-
- /* Select bitmaps */
- clib_bitmap_t *rd_bitmap;
- clib_bitmap_t *wr_bitmap;
- clib_bitmap_t *ex_bitmap;
-
- /* Our event queue */
- unix_shared_memory_queue_t *app_event_queue;
-
- /* unique segment name counter */
- u32 unique_segment_index;
-
- pid_t my_pid;
-
- /* For deadman timers */
- clib_time_t clib_time;
-
- /* State of the connection, shared between msg RX thread and main thread */
- volatile app_state_t app_state;
-
- vppcom_cfg_t cfg;
-
- /* VNET_API_ERROR_FOO -> "Foo" hash table */
- uword *error_string_by_error_number;
-} vppcom_main_t;
-
-vppcom_main_t vppcom_main = {.my_client_index = ~0 };
-
-static const char *
-vppcom_app_state_str (app_state_t state)
-{
- char *st;
-
- switch (state)
- {
- case STATE_APP_START:
- st = "STATE_APP_START";
- break;
-
- case STATE_APP_CONN_VPP:
- st = "STATE_APP_CONN_VPP";
- break;
-
- case STATE_APP_ENABLED:
- st = "STATE_APP_ENABLED";
- break;
-
- case STATE_APP_ATTACHED:
- st = "STATE_APP_ATTACHED";
- break;
-
- default:
- st = "UNKNOWN_APP_STATE";
- break;
- }
-
- return st;
-}
-
-static const char *
-vppcom_session_state_str (session_state_t state)
-{
- char *st;
-
- switch (state)
- {
- case STATE_START:
- st = "STATE_START";
- break;
-
- case STATE_CONNECT:
- st = "STATE_CONNECT";
- break;
-
- case STATE_LISTEN:
- st = "STATE_LISTEN";
- break;
-
- case STATE_ACCEPT:
- st = "STATE_ACCEPT";
- break;
-
- case STATE_DISCONNECT:
- st = "STATE_DISCONNECT";
- break;
-
- case STATE_FAILED:
- st = "STATE_FAILED";
- break;
-
- default:
- st = "UNKNOWN_STATE";
- break;
- }
-
- return st;
-}
-
-/*
- * VPPCOM Utility Functions
- */
-static inline int
-vppcom_session_at_index (u32 session_index, session_t * volatile *sess)
-{
- vppcom_main_t *vcm = &vppcom_main;
-
- /* Assumes that caller has acquired spinlock: vcm->sessions_lockp */
- if (PREDICT_FALSE ((session_index == ~0) ||
- pool_is_free_index (vcm->sessions, session_index)))
- {
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- return VPPCOM_EBADFD;
- }
- *sess = pool_elt_at_index (vcm->sessions, session_index);
- return VPPCOM_OK;
-}
-
-static int
-vppcom_connect_to_vpp (char *app_name)
-{
- api_main_t *am = &api_main;
- vppcom_main_t *vcm = &vppcom_main;
-
- if (VPPCOM_DEBUG > 0)
- printf ("\nConnecting to VPP api...");
- if (vl_client_connect_to_vlib ("/vpe-api", app_name, 32) < 0)
- {
- clib_warning ("[%d] connect to vpp (%s) failed!",
- vcm->my_pid, app_name);
- return VPPCOM_ECONNREFUSED;
- }
-
- vcm->vl_input_queue = am->shmem_hdr->vl_input_queue;
- vcm->my_client_index = am->my_client_index;
- if (VPPCOM_DEBUG > 0)
- printf (" connected!\n");
-
- vcm->app_state = STATE_APP_CONN_VPP;
- return VPPCOM_OK;
-}
-
-static u8 *
-format_api_error (u8 * s, va_list * args)
-{
- vppcom_main_t *vcm = &vppcom_main;
- i32 error = va_arg (*args, u32);
- uword *p;
-
- p = hash_get (vcm->error_string_by_error_number, -error);
-
- if (p)
- s = format (s, "%s (%d)", p[0], error);
- else
- s = format (s, "%d", error);
- return s;
-}
-
-static void
-vppcom_init_error_string_table (void)
-{
- vppcom_main_t *vcm = &vppcom_main;
-
- vcm->error_string_by_error_number = hash_create (0, sizeof (uword));
-
-#define _(n,v,s) hash_set (vcm->error_string_by_error_number, -v, s);
- foreach_vnet_api_error;
-#undef _
-
- hash_set (vcm->error_string_by_error_number, 99, "Misc");
-}
-
-static inline int
-vppcom_wait_for_app_state_change (app_state_t app_state)
-{
- vppcom_main_t *vcm = &vppcom_main;
- f64 timeout = clib_time_now (&vcm->clib_time) + vcm->cfg.app_timeout;
-
- while (clib_time_now (&vcm->clib_time) < timeout)
- {
- if (vcm->app_state == app_state)
- return VPPCOM_OK;
- }
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] timeout waiting for state %s (%d)", vcm->my_pid,
- vppcom_app_state_str (app_state), app_state);
- return VPPCOM_ETIMEDOUT;
-}
-
-static inline int
-vppcom_wait_for_session_state_change (u32 session_index,
- session_state_t state,
- f64 wait_for_time)
-{
- vppcom_main_t *vcm = &vppcom_main;
- f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
- session_t *volatile session;
- int rv;
-
- do
- {
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- return rv;
- }
- if (session->state == state)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- return VPPCOM_OK;
- }
- clib_spinlock_unlock (&vcm->sessions_lockp);
- }
- while (clib_time_now (&vcm->clib_time) < timeout);
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] timeout waiting for state %s (%d)", vcm->my_pid,
- vppcom_session_state_str (state), state);
- return VPPCOM_ETIMEDOUT;
-}
-
-static inline int
-vppcom_wait_for_client_session_index (f64 wait_for_time)
-{
- vppcom_main_t *vcm = &vppcom_main;
- f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
-
- do
- {
- if (clib_fifo_elts (vcm->client_session_index_fifo))
- return VPPCOM_OK;
- }
- while (clib_time_now (&vcm->clib_time) < timeout);
-
- if (wait_for_time == 0)
- return VPPCOM_EAGAIN;
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] timeout waiting for client_session_index",
- vcm->my_pid);
- return VPPCOM_ETIMEDOUT;
-}
-
-/*
- * VPP-API message functions
- */
-static void
-vppcom_send_session_enable_disable (u8 is_enable)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vl_api_session_enable_disable_t *bmp;
- bmp = vl_msg_api_alloc (sizeof (*bmp));
- memset (bmp, 0, sizeof (*bmp));
-
- bmp->_vl_msg_id = ntohs (VL_API_SESSION_ENABLE_DISABLE);
- bmp->client_index = vcm->my_client_index;
- bmp->context = htonl (0xfeedface);
- bmp->is_enable = is_enable;
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
-}
-
-static int
-vppcom_app_session_enable (void)
-{
- vppcom_main_t *vcm = &vppcom_main;
- int rv;
-
- if (vcm->app_state != STATE_APP_ENABLED)
- {
- vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
- rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] Session enable timed out, rv = %s (%d)",
- vcm->my_pid, vppcom_retval_str (rv), rv);
- return rv;
- }
- }
- return VPPCOM_OK;
-}
-
-static void
- vl_api_session_enable_disable_reply_t_handler
- (vl_api_session_enable_disable_reply_t * mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
-
- if (mp->retval)
- {
- clib_warning ("[%d] session_enable_disable failed: %U", vcm->my_pid,
- format_api_error, ntohl (mp->retval));
- }
- else
- vcm->app_state = STATE_APP_ENABLED;
-}
-
-static void
-vppcom_app_send_attach (void)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vl_api_application_attach_t *bmp;
- bmp = vl_msg_api_alloc (sizeof (*bmp));
- memset (bmp, 0, sizeof (*bmp));
-
- bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
- bmp->client_index = vcm->my_client_index;
- bmp->context = htonl (0xfeedface);
- bmp->options[APP_OPTIONS_FLAGS] =
- APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT |
- APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE | APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
- bmp->options[SESSION_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
- bmp->options[SESSION_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
- bmp->options[SESSION_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
- bmp->options[SESSION_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size;
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
-}
-
-static int
-vppcom_app_attach (void)
-{
- vppcom_main_t *vcm = &vppcom_main;
- int rv;
-
- vppcom_app_send_attach ();
- rv = vppcom_wait_for_app_state_change (STATE_APP_ATTACHED);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] application attach timed out, rv = %s (%d)",
- vcm->my_pid, vppcom_retval_str (rv), rv);
- return rv;
- }
- return VPPCOM_OK;
-}
-
-static void
-vppcom_app_detach (void)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vl_api_application_detach_t *bmp;
- bmp = vl_msg_api_alloc (sizeof (*bmp));
- memset (bmp, 0, sizeof (*bmp));
-
- bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
- bmp->client_index = vcm->my_client_index;
- bmp->context = htonl (0xfeedface);
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
-}
-
-static void
-vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
- mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
- static svm_fifo_segment_create_args_t _a;
- svm_fifo_segment_create_args_t *a = &_a;
- int rv;
-
- memset (a, 0, sizeof (*a));
- if (mp->retval)
- {
- clib_warning ("[%d] attach failed: %U", vcm->my_pid,
- format_api_error, ntohl (mp->retval));
- return;
- }
-
- if (mp->segment_name_length == 0)
- {
- clib_warning ("[%d] segment_name_length zero", vcm->my_pid);
- return;
- }
-
- a->segment_name = (char *) mp->segment_name;
- a->segment_size = mp->segment_size;
-
- ASSERT (mp->app_event_queue_address);
-
- /* Attach to the segment vpp created */
- rv = svm_fifo_segment_attach (a);
- vec_reset_length (a->new_segment_indices);
- if (PREDICT_FALSE (rv))
- {
- clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed", vcm->my_pid,
- mp->segment_name);
- return;
- }
-
- vcm->app_event_queue =
- uword_to_pointer (mp->app_event_queue_address,
- unix_shared_memory_queue_t *);
-
- vcm->app_state = STATE_APP_ATTACHED;
-}
-
-static void
-vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
- mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
-
- if (mp->retval)
- clib_warning ("[%d] detach failed: %U", vcm->my_pid, format_api_error,
- ntohl (mp->retval));
-
- vcm->app_state = STATE_APP_ENABLED;
-}
-
-static void
-vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
- mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
- uword *p;
-
- p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
- if (p)
- {
- session_t *session = 0;
- int rv;
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (p[0], &session);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, p[0]);
- }
- hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
- session->state = STATE_DISCONNECT;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- }
- else
- {
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
- mp->handle);
- }
-
- if (mp->retval)
- clib_warning ("[%d] disconnect_session failed: %U", vcm->my_pid,
- format_api_error, ntohl (mp->retval));
-}
-
-static void
-vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
- static svm_fifo_segment_create_args_t _a;
- svm_fifo_segment_create_args_t *a = &_a;
- int rv;
-
- memset (a, 0, sizeof (*a));
- a->segment_name = (char *) mp->segment_name;
- a->segment_size = mp->segment_size;
- /* Attach to the segment vpp created */
- rv = svm_fifo_segment_attach (a);
- vec_reset_length (a->new_segment_indices);
- if (PREDICT_FALSE (rv))
- {
- clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed",
- vcm->my_pid, mp->segment_name);
- return;
- }
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] mapped new segment '%s' size %d", vcm->my_pid,
- mp->segment_name, mp->segment_size);
-}
-
-static void
-vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session = 0;
- vl_api_disconnect_session_reply_t *rmp;
- uword *p;
- int rv = 0;
-
- p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
- if (p)
- {
- int rval;
- clib_spinlock_lock (&vcm->sessions_lockp);
- rval = vppcom_session_at_index (p[0], &session);
- if (PREDICT_FALSE (rval))
- {
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, p[0]);
- }
- else
- pool_put (vcm->sessions, session);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
- }
- else
- {
- clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
- mp->handle);
- rv = -11;
- }
-
- rmp = vl_msg_api_alloc (sizeof (*rmp));
- memset (rmp, 0, sizeof (*rmp));
-
- rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY);
- rmp->retval = htonl (rv);
- rmp->handle = mp->handle;
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
-}
-
-static void
-vl_api_reset_session_t_handler (vl_api_reset_session_t * mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session = 0;
- vl_api_reset_session_reply_t *rmp;
- uword *p;
- int rv = 0;
-
- p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
- if (p)
- {
- int rval;
- clib_spinlock_lock (&vcm->sessions_lockp);
- rval = vppcom_session_at_index (p[0], &session);
- if (PREDICT_FALSE (rval))
- {
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, p[0]);
- }
- else
- pool_put (vcm->sessions, session);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
- }
- else
- {
- clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
- mp->handle);
- rv = -11;
- }
-
- rmp = vl_msg_api_alloc (sizeof (*rmp));
- memset (rmp, 0, sizeof (*rmp));
- rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY);
- rmp->retval = htonl (rv);
- rmp->handle = mp->handle;
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
-}
-
-static void
-vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session;
- u32 session_index;
- svm_fifo_t *rx_fifo, *tx_fifo;
- u8 is_cut_thru = 0;
- int rv;
-
- if (mp->retval)
- {
- clib_warning ("[%d] connect failed: %U", vcm->my_pid, format_api_error,
- ntohl (mp->retval));
- return;
- }
-
- session_index = mp->context;
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] session_index = %d 0x%08x", vcm->my_pid,
- session_index, session_index);
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- if (pool_is_free_index (vcm->sessions, session_index))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] invalid session, sid %d is closed!",
- vcm->my_pid, session_index);
- return;
- }
-
- /* We've been redirected */
- if (mp->segment_name_length > 0)
- {
- static svm_fifo_segment_create_args_t _a;
- svm_fifo_segment_create_args_t *a = &_a;
-
- is_cut_thru = 1;
- memset (a, 0, sizeof (*a));
- a->segment_name = (char *) mp->segment_name;
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] cut-thru segment: %s", vcm->my_pid,
- a->segment_name);
- rv = svm_fifo_segment_attach (a);
- vec_reset_length (a->new_segment_indices);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- clib_warning ("[%d] sm_fifo_segment_attach ('%s') failed",
- vcm->my_pid, a->segment_name);
- return;
- }
- }
-
- /*
- * Setup session
- */
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] client sid %d", vcm->my_pid, session_index);
-
- session = pool_elt_at_index (vcm->sessions, session_index);
- session->is_cut_thru = is_cut_thru;
- session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
- unix_shared_memory_queue_t *);
-
- rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
- rx_fifo->client_session_index = session_index;
- tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
- tx_fifo->client_session_index = session_index;
-
- session->server_rx_fifo = rx_fifo;
- session->server_tx_fifo = tx_fifo;
- session->vpp_session_handle = mp->handle;
- session->state = STATE_CONNECT;
-
- /* Add it to lookup table */
- hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
-}
-
-static void
-vppcom_send_connect_sock (session_t * session, u32 session_index)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vl_api_connect_sock_t *cmp;
-
- /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */
- session->is_server = 0;
- cmp = vl_msg_api_alloc (sizeof (*cmp));
- memset (cmp, 0, sizeof (*cmp));
- cmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK);
- cmp->client_index = vcm->my_client_index;
- cmp->context = session_index;
-
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] session_index = %d 0x%08x",
- vcm->my_pid, session_index, session_index);
-
- cmp->vrf = session->vrf;
- cmp->is_ip4 = session->peer_addr.is_ip4;
- clib_memcpy (cmp->ip, &session->peer_addr.ip46, sizeof (cmp->ip));
- cmp->port = session->port;
- cmp->proto = session->proto;
- clib_memcpy (cmp->options, session->options, sizeof (cmp->options));
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & cmp);
-}
-
-static int
-vppcom_send_disconnect (u32 session_index)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vl_api_disconnect_session_t *dmp;
- session_t *session = 0;
- int rv;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- return rv;
- }
-
- dmp = vl_msg_api_alloc (sizeof (*dmp));
- memset (dmp, 0, sizeof (*dmp));
- dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
- dmp->client_index = vcm->my_client_index;
- dmp->handle = session->vpp_session_handle;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp);
- return VPPCOM_OK;
-}
-
-static void
-vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session = 0;
- int rv;
-
- if (mp->retval)
- clib_warning ("[%d] bind failed: %U", vcm->my_pid, format_api_error,
- ntohl (mp->retval));
-
- ASSERT (vcm->bind_session_index != ~0);
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (vcm->bind_session_index, &session);
- if (rv == VPPCOM_OK)
- {
- session->vpp_session_handle = mp->handle;
- hash_set (vcm->session_index_by_vpp_handles, mp->handle,
- vcm->bind_session_index);
- session->state = mp->retval ? STATE_FAILED : STATE_LISTEN;
- vcm->bind_session_index = ~0;
- }
- clib_spinlock_unlock (&vcm->sessions_lockp);
-}
-
-static void
-vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session = 0;
- int rv;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (vcm->bind_session_index, &session);
- if (rv == VPPCOM_OK)
- {
- if ((VPPCOM_DEBUG > 1) && (mp->retval))
- clib_warning ("[%d] unbind failed: %U", vcm->my_pid, format_api_error,
- ntohl (mp->retval));
-
- vcm->bind_session_index = ~0;
- session->state = STATE_START;
- }
- clib_spinlock_unlock (&vcm->sessions_lockp);
-}
-
-u8 *
-format_ip4_address (u8 * s, va_list * args)
-{
- u8 *a = va_arg (*args, u8 *);
- return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
-}
-
-u8 *
-format_ip6_address (u8 * s, va_list * args)
-{
- ip6_address_t *a = va_arg (*args, ip6_address_t *);
- u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
-
- i_max_n_zero = ARRAY_LEN (a->as_u16);
- max_n_zeros = 0;
- i_first_zero = i_max_n_zero;
- n_zeros = 0;
- for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
- {
- u32 is_zero = a->as_u16[i] == 0;
- if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
- {
- i_first_zero = i;
- n_zeros = 0;
- }
- n_zeros += is_zero;
- if ((!is_zero && n_zeros > max_n_zeros)
- || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
- {
- i_max_n_zero = i_first_zero;
- max_n_zeros = n_zeros;
- i_first_zero = ARRAY_LEN (a->as_u16);
- n_zeros = 0;
- }
- }
-
- last_double_colon = 0;
- for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
- {
- if (i == i_max_n_zero && max_n_zeros > 1)
- {
- s = format (s, "::");
- i += max_n_zeros - 1;
- last_double_colon = 1;
- }
- else
- {
- s = format (s, "%s%x",
- (last_double_colon || i == 0) ? "" : ":",
- clib_net_to_host_u16 (a->as_u16[i]));
- last_double_colon = 0;
- }
- }
-
- return s;
-}
-
-/* Format an IP46 address. */
-u8 *
-format_ip46_address (u8 * s, va_list * args)
-{
- ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
- ip46_type_t type = va_arg (*args, ip46_type_t);
- int is_ip4 = 1;
-
- switch (type)
- {
- case IP46_TYPE_ANY:
- is_ip4 = ip46_address_is_ip4 (ip46);
- break;
- case IP46_TYPE_IP4:
- is_ip4 = 1;
- break;
- case IP46_TYPE_IP6:
- is_ip4 = 0;
- break;
- }
-
- return is_ip4 ?
- format (s, "%U", format_ip4_address, &ip46->ip4) :
- format (s, "%U", format_ip6_address, &ip46->ip6);
-}
-
-static void
-vl_api_accept_session_t_handler (vl_api_accept_session_t * mp)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vl_api_accept_session_reply_t *rmp;
- svm_fifo_t *rx_fifo, *tx_fifo;
- session_t *session;
- u32 session_index;
- int rv = 0;
-
- if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
- {
- clib_warning ("[%d] client session queue is full!", vcm->my_pid);
- rv = VNET_API_ERROR_QUEUE_FULL;
- goto send_reply;
- }
-
- if (VPPCOM_DEBUG > 1)
- {
- u8 *ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4);
- clib_warning ("[%d] accepted session from: %s:%d", vcm->my_pid, ip_str,
- clib_net_to_host_u16 (mp->port));
- vec_free (ip_str);
- }
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- /* Allocate local session and set it up */
- pool_get (vcm->sessions, session);
- memset (session, 0, sizeof (*session));
- session_index = session - vcm->sessions;
-
- rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
- rx_fifo->client_session_index = session_index;
- tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
- tx_fifo->client_session_index = session_index;
-
- session->server_rx_fifo = rx_fifo;
- session->server_tx_fifo = tx_fifo;
- session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
- unix_shared_memory_queue_t *);
- session->state = STATE_ACCEPT;
- session->is_cut_thru = 0;
- session->is_server = 1;
- session->port = mp->port;
- session->peer_addr.is_ip4 = mp->is_ip4;
- clib_memcpy (&session->peer_addr.ip46, mp->ip,
- sizeof (session->peer_addr.ip46));
-
- /* Add it to lookup table */
- hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
-
- clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- /*
- * Send accept reply to vpp
- */
-send_reply:
- rmp = vl_msg_api_alloc (sizeof (*rmp));
- memset (rmp, 0, sizeof (*rmp));
- rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
- rmp->retval = htonl (rv);
- rmp->handle = mp->handle;
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
-}
-
-/*
- * Acting as server for redirected connect requests
- */
-static void
-vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp)
-{
- static svm_fifo_segment_create_args_t _a;
- svm_fifo_segment_create_args_t *a = &_a;
- vppcom_main_t *vcm = &vppcom_main;
- u32 session_index;
- svm_fifo_segment_private_t *seg;
- unix_shared_memory_queue_t *client_q;
- vl_api_connect_session_reply_t *rmp;
- session_t *session = 0;
- int rv = 0;
- svm_fifo_t *rx_fifo;
- svm_fifo_t *tx_fifo;
- unix_shared_memory_queue_t *event_q = 0;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
- {
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] client session queue is full!", vcm->my_pid);
- rv = VNET_API_ERROR_QUEUE_FULL;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- goto send_reply;
- }
-
- /* Create the segment */
- memset (a, 0, sizeof (*a));
- a->segment_name = (char *) format ((u8 *) a->segment_name, "%d:segment%d%c",
- vcm->my_pid, vcm->unique_segment_index++,
- 0);
- a->segment_size = vcm->cfg.segment_size;
- a->preallocated_fifo_pairs = vcm->cfg.preallocated_fifo_pairs;
- a->rx_fifo_size = vcm->cfg.rx_fifo_size;
- a->tx_fifo_size = vcm->cfg.tx_fifo_size;
-
- rv = svm_fifo_segment_create (a);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] svm_fifo_segment_create ('%s') failed",
- vcm->my_pid, a->segment_name);
- vec_reset_length (a->new_segment_indices);
- rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
- goto send_reply;
- }
-
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] created segment '%s'", vcm->my_pid, a->segment_name);
-
- pool_get (vcm->sessions, session);
- memset (session, 0, sizeof (*session));
- session_index = session - vcm->sessions;
-
- session->sm_seg_index = a->new_segment_indices[0];
- vec_reset_length (a->new_segment_indices);
-
- seg = svm_fifo_segment_get_segment (session->sm_seg_index);
- rx_fifo = session->server_rx_fifo =
- svm_fifo_segment_alloc_fifo (seg, vcm->cfg.rx_fifo_size,
- FIFO_SEGMENT_RX_FREELIST);
- if (PREDICT_FALSE (!session->server_rx_fifo))
- {
- svm_fifo_segment_delete (seg);
- clib_warning ("[%d] rx fifo alloc failed, size %ld (0x%lx)",
- vcm->my_pid, vcm->cfg.rx_fifo_size,
- vcm->cfg.rx_fifo_size);
- rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- goto send_reply;
- }
-
- tx_fifo = session->server_tx_fifo =
- svm_fifo_segment_alloc_fifo (seg, vcm->cfg.tx_fifo_size,
- FIFO_SEGMENT_TX_FREELIST);
- if (PREDICT_FALSE (!session->server_tx_fifo))
- {
- svm_fifo_segment_delete (seg);
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] tx fifo alloc failed, size %ld (0x%lx)",
- vcm->my_pid, vcm->cfg.tx_fifo_size,
- vcm->cfg.tx_fifo_size);
- rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- goto send_reply;
- }
-
- session->server_rx_fifo->master_session_index = session_index;
- session->server_tx_fifo->master_session_index = session_index;
- session->client_queue_address = mp->client_queue_address;
- session->is_cut_thru = 1;
- session->is_server = 1;
- session->port = mp->port;
- session->peer_addr.is_ip4 = mp->is_ip4;
- clib_memcpy (&session->peer_addr.ip46, mp->ip,
- sizeof (session->peer_addr.ip46));
- {
- void *oldheap;
- ssvm_shared_header_t *sh = seg->ssvm.sh;
-
- ssvm_lock_non_recursive (sh, 1);
- oldheap = ssvm_push_heap (sh);
- event_q = session->vpp_event_queue =
- unix_shared_memory_queue_init (vcm->cfg.event_queue_size,
- sizeof (session_fifo_event_t),
- vcm->my_pid, 0 /* signal not sent */ );
- ssvm_pop_heap (oldheap);
- ssvm_unlock_non_recursive (sh);
- }
-
- session->state = STATE_ACCEPT;
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] Connected cut-thru to client: sid %d",
- vcm->my_pid, session_index);
- clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
-send_reply:
- rmp = vl_msg_api_alloc (sizeof (*rmp));
- memset (rmp, 0, sizeof (*rmp));
-
- rmp->_vl_msg_id = ntohs (VL_API_CONNECT_SESSION_REPLY);
- rmp->context = mp->context;
- rmp->retval = htonl (rv);
- rmp->segment_name_length = vec_len (a->segment_name);
- clib_memcpy (rmp->segment_name, a->segment_name, vec_len (a->segment_name));
- vec_reset_length (a->segment_name);
-
- if (event_q)
- {
- rmp->vpp_event_queue_address = pointer_to_uword (event_q);
- rmp->server_rx_fifo = pointer_to_uword (rx_fifo);
- rmp->server_tx_fifo = pointer_to_uword (tx_fifo);
- }
- client_q =
- uword_to_pointer (mp->client_queue_address, unix_shared_memory_queue_t *);
-
- ASSERT (client_q);
- vl_msg_api_send_shmem (client_q, (u8 *) & rmp);
-}
-
-static void
-vppcom_send_bind_sock (session_t * session)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vl_api_bind_sock_t *bmp;
-
- /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
- session->is_server = 1;
- bmp = vl_msg_api_alloc (sizeof (*bmp));
- memset (bmp, 0, sizeof (*bmp));
-
- bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK);
- bmp->client_index = vcm->my_client_index;
- bmp->context = htonl (0xfeedface);
- bmp->vrf = session->vrf;
- bmp->is_ip4 = session->lcl_addr.is_ip4;
- clib_memcpy (bmp->ip, &session->lcl_addr.ip46, sizeof (bmp->ip));
- bmp->port = session->port;
- bmp->proto = session->proto;
- clib_memcpy (bmp->options, session->options, sizeof (bmp->options));
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
-}
-
-static void
-vppcom_send_unbind_sock (u32 session_index)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vl_api_unbind_sock_t *ump;
- session_t *session = 0;
- int rv;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- return;
- }
-
- ump = vl_msg_api_alloc (sizeof (*ump));
- memset (ump, 0, sizeof (*ump));
-
- ump->_vl_msg_id = ntohs (VL_API_UNBIND_SOCK);
- ump->client_index = vcm->my_client_index;
- ump->handle = session->vpp_session_handle;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump);
-}
-
-static int
-vppcom_session_unbind_cut_thru (session_t * session)
-{
- svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
- svm_fifo_segment_private_t *seg;
- int rv = VPPCOM_OK;
-
- seg = vec_elt_at_index (sm->segments, session->sm_seg_index);
- svm_fifo_segment_free_fifo (seg, session->server_rx_fifo,
- FIFO_SEGMENT_RX_FREELIST);
- svm_fifo_segment_free_fifo (seg, session->server_tx_fifo,
- FIFO_SEGMENT_TX_FREELIST);
- svm_fifo_segment_delete (seg);
-
- return rv;
-}
-
-static int
-vppcom_session_unbind (u32 session_index)
-{
- vppcom_main_t *vcm = &vppcom_main;
- int rv;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- if (PREDICT_FALSE (pool_is_free_index (vcm->sessions, session_index)))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- return VPPCOM_EBADFD;
- }
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- vcm->bind_session_index = session_index;
- vppcom_send_unbind_sock (session_index);
- rv = vppcom_wait_for_session_state_change (session_index, STATE_START,
- vcm->cfg.session_timeout);
- if (PREDICT_FALSE (rv))
- {
- vcm->bind_session_index = ~0;
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] server unbind timed out, rv = %s (%d)",
- vcm->my_pid, vppcom_retval_str (rv), rv);
- return rv;
- }
- return VPPCOM_OK;
-}
-
-static int
-vppcom_session_disconnect (u32 session_index)
-{
- vppcom_main_t *vcm = &vppcom_main;
- int rv;
-
- rv = vppcom_send_disconnect (session_index);
- if (PREDICT_FALSE (rv))
- return rv;
-
- rv = vppcom_wait_for_session_state_change (session_index, STATE_DISCONNECT,
- vcm->cfg.session_timeout);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] client disconnect timed out, rv = %s (%d)",
- vcm->my_pid, vppcom_retval_str (rv), rv);
- return rv;
- }
- return VPPCOM_OK;
-}
-
-#define foreach_sock_msg \
-_(SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \
-_(BIND_SOCK_REPLY, bind_sock_reply) \
-_(UNBIND_SOCK_REPLY, unbind_sock_reply) \
-_(ACCEPT_SESSION, accept_session) \
-_(CONNECT_SOCK, connect_sock) \
-_(CONNECT_SESSION_REPLY, connect_session_reply) \
-_(DISCONNECT_SESSION, disconnect_session) \
-_(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
-_(RESET_SESSION, reset_session) \
-_(APPLICATION_ATTACH_REPLY, application_attach_reply) \
-_(APPLICATION_DETACH_REPLY, application_detach_reply) \
-_(MAP_ANOTHER_SEGMENT, map_another_segment)
-
-static void
-vppcom_api_hookup (void)
-{
-#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_sock_msg;
-#undef _
-}
-
-static void
-vppcom_cfg_init (vppcom_cfg_t * vcl_cfg)
-{
- ASSERT (vcl_cfg);
-
- vcl_cfg->heapsize = (256ULL << 20);
- vcl_cfg->segment_baseva = 0x200000000ULL;
- vcl_cfg->segment_size = (256 << 20);
- vcl_cfg->add_segment_size = (128 << 20);
- vcl_cfg->preallocated_fifo_pairs = 8;
- vcl_cfg->rx_fifo_size = (1 << 20);
- vcl_cfg->tx_fifo_size = (1 << 20);
- vcl_cfg->event_queue_size = 2048;
- vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32);
- vcl_cfg->app_timeout = 10 * 60.0;
- vcl_cfg->session_timeout = 10 * 60.0;
- vcl_cfg->accept_timeout = 60.0;
-}
-
-static void
-vppcom_cfg_heapsize (char *conf_fname)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vppcom_cfg_t *vcl_cfg = &vcm->cfg;
- FILE *fp;
- char inbuf[4096];
- int argc = 1;
- char **argv = NULL;
- char *arg = NULL;
- char *p;
- int i;
- u8 *sizep;
- u32 size;
-
- fp = fopen (conf_fname, "r");
- if (fp == NULL)
- {
- if (VPPCOM_DEBUG > 0)
- fprintf (stderr, "open configuration file '%s' failed\n", conf_fname);
- goto defaulted;
- }
- argv = calloc (1, sizeof (char *));
- if (argv == NULL)
- goto defaulted;
-
- while (1)
- {
- if (fgets (inbuf, 4096, fp) == 0)
- break;
- p = strtok (inbuf, " \t\n");
- while (p != NULL)
- {
- if (*p == '#')
- break;
- argc++;
- char **tmp = realloc (argv, argc * sizeof (char *));
- if (tmp == NULL)
- goto defaulted;
- argv = tmp;
- arg = strndup (p, 1024);
- if (arg == NULL)
- goto defaulted;
- argv[argc - 1] = arg;
- p = strtok (NULL, " \t\n");
- }
- }
-
- fclose (fp);
- fp = NULL;
-
- char **tmp = realloc (argv, (argc + 1) * sizeof (char *));
- if (tmp == NULL)
- goto defaulted;
- argv = tmp;
- argv[argc] = NULL;
-
- /*
- * Look for and parse the "heapsize" config parameter.
- * Manual since none of the clib infra has been bootstrapped yet.
- *
- * Format: heapsize <nn>[mM][gG]
- */
-
- for (i = 1; i < (argc - 1); i++)
- {
- if (!strncmp (argv[i], "heapsize", 8))
- {
- sizep = (u8 *) argv[i + 1];
- size = 0;
- while (*sizep >= '0' && *sizep <= '9')
- {
- size *= 10;
- size += *sizep++ - '0';
- }
- if (size == 0)
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] parse error '%s %s', "
- "using default heapsize %lld (0x%llx)",
- vcm->my_pid, argv[i], argv[i + 1],
- vcl_cfg->heapsize, vcl_cfg->heapsize);
- goto defaulted;
- }
-
- if (*sizep == 'g' || *sizep == 'G')
- vcl_cfg->heapsize = size << 30;
- else if (*sizep == 'm' || *sizep == 'M')
- vcl_cfg->heapsize = size << 20;
- else
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] parse error '%s %s', "
- "using default heapsize %lld (0x%llx)",
- vcm->my_pid, argv[i], argv[i + 1],
- vcl_cfg->heapsize, vcl_cfg->heapsize);
- goto defaulted;
- }
- }
- }
-
-defaulted:
- if (fp != NULL)
- fclose (fp);
- if (argv != NULL)
- free (argv);
- if (!clib_mem_init (0, vcl_cfg->heapsize))
- clib_warning ("[%d] vppcom heap allocation failure!", vcm->my_pid);
- else if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] allocated vppcom heapsize %lld (0x%llx)",
- vcm->my_pid, vcl_cfg->heapsize, vcl_cfg->heapsize);
-}
-
-static void
-vppcom_cfg_read (char *conf_fname)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vppcom_cfg_t *vcl_cfg = &vcm->cfg;
- int fd;
- unformat_input_t _input, *input = &_input;
- unformat_input_t _line_input, *line_input = &_line_input;
- u8 vc_cfg_input = 0;
- u8 *chroot_path;
- struct stat s;
- u32 uid, gid;
-
- fd = open (conf_fname, O_RDONLY);
- if (fd < 0)
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] open configuration file '%s' failed!",
- vcm->my_pid, conf_fname);
- goto file_done;
- }
-
- if (fstat (fd, &s) < 0)
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] failed to stat `%s'", vcm->my_pid, conf_fname);
- goto file_done;
- }
-
- if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] not a regular file `%s'", vcm->my_pid,
- conf_fname);
- goto file_done;
- }
-
- unformat_init_clib_file (input, fd);
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- (void) unformat_user (input, unformat_line_input, line_input);
- unformat_skip_white_space (line_input);
-
- if (unformat (line_input, "vppcom {"))
- {
- vc_cfg_input = 1;
- continue;
- }
-
- if (vc_cfg_input)
- {
- if (unformat (line_input, "heapsize %s", &chroot_path))
- {
- vec_terminate_c_string (chroot_path);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured heapsize %s, "
- "actual heapsize %lld (0x%llx)",
- vcm->my_pid, chroot_path, vcl_cfg->heapsize,
- vcl_cfg->heapsize);
- vec_free (chroot_path);
- }
- else if (unformat (line_input, "api-prefix %s", &chroot_path))
- {
- vec_terminate_c_string (chroot_path);
- vl_set_memory_root_path ((char *) chroot_path);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured api-prefix %s",
- vcm->my_pid, chroot_path);
- chroot_path = 0; /* Don't vec_free() it! */
- }
- else if (unformat (line_input, "uid %d", &uid))
- {
- vl_set_memory_uid (uid);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured uid %d", vcm->my_pid, uid);
- }
- else if (unformat (line_input, "gid %d", &gid))
- {
- vl_set_memory_gid (gid);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured gid %d", vcm->my_pid, gid);
- }
- else if (unformat (line_input, "segment-baseva 0x%llx",
- &vcl_cfg->segment_baseva))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured segment_baseva 0x%llx",
- vcm->my_pid, vcl_cfg->segment_baseva);
- }
- else if (unformat (line_input, "segment-size 0x%lx",
- &vcl_cfg->segment_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured segment_size 0x%lx (%ld)",
- vcm->my_pid, vcl_cfg->segment_size,
- vcl_cfg->segment_size);
- }
- else if (unformat (line_input, "segment-size %ld",
- &vcl_cfg->segment_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured segment_size %ld (0x%lx)",
- vcm->my_pid, vcl_cfg->segment_size,
- vcl_cfg->segment_size);
- }
- else if (unformat (line_input, "add-segment-size 0x%lx",
- &vcl_cfg->add_segment_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning
- ("[%d] configured add_segment_size 0x%lx (%ld)",
- vcm->my_pid, vcl_cfg->add_segment_size,
- vcl_cfg->add_segment_size);
- }
- else if (unformat (line_input, "add-segment-size %ld",
- &vcl_cfg->add_segment_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning
- ("[%d] configured add_segment_size %ld (0x%lx)",
- vcm->my_pid, vcl_cfg->add_segment_size,
- vcl_cfg->add_segment_size);
- }
- else if (unformat (line_input, "preallocated-fifo-pairs %d",
- &vcl_cfg->preallocated_fifo_pairs))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured preallocated_fifo_pairs "
- "%d (0x%x)", vcm->my_pid,
- vcl_cfg->preallocated_fifo_pairs,
- vcl_cfg->preallocated_fifo_pairs);
- }
- else if (unformat (line_input, "rx-fifo-size 0x%lx",
- &vcl_cfg->rx_fifo_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured rx_fifo_size 0x%lx (%ld)",
- vcm->my_pid, vcl_cfg->rx_fifo_size,
- vcl_cfg->rx_fifo_size);
- }
- else if (unformat (line_input, "rx-fifo-size %ld",
- &vcl_cfg->rx_fifo_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured rx_fifo_size %ld (0x%lx)",
- vcm->my_pid, vcl_cfg->rx_fifo_size,
- vcl_cfg->rx_fifo_size);
- }
- else if (unformat (line_input, "tx-fifo-size 0x%lx",
- &vcl_cfg->tx_fifo_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured tx_fifo_size 0x%lx (%ld)",
- vcm->my_pid, vcl_cfg->tx_fifo_size,
- vcl_cfg->tx_fifo_size);
- }
- else if (unformat (line_input, "tx-fifo-size %ld",
- &vcl_cfg->tx_fifo_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured tx_fifo_size %ld (0x%lx)",
- vcm->my_pid, vcl_cfg->tx_fifo_size,
- vcl_cfg->tx_fifo_size);
- }
- else if (unformat (line_input, "event-queue-size 0x%lx",
- &vcl_cfg->event_queue_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured event_queue_size 0x%lx (%ld)",
- vcm->my_pid, vcl_cfg->event_queue_size,
- vcl_cfg->event_queue_size);
- }
- else if (unformat (line_input, "event-queue-size %ld",
- &vcl_cfg->event_queue_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured event_queue_size %ld (0x%lx)",
- vcm->my_pid, vcl_cfg->event_queue_size,
- vcl_cfg->event_queue_size);
- }
- else if (unformat (line_input, "listen-queue-size 0x%lx",
- &vcl_cfg->listen_queue_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured listen_queue_size 0x%lx (%ld)",
- vcm->my_pid, vcl_cfg->listen_queue_size,
- vcl_cfg->listen_queue_size);
- }
- else if (unformat (line_input, "listen-queue-size %ld",
- &vcl_cfg->listen_queue_size))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured listen_queue_size %ld (0x%lx)",
- vcm->my_pid, vcl_cfg->listen_queue_size,
- vcl_cfg->listen_queue_size);
- }
- else if (unformat (line_input, "app-timeout %f",
- &vcl_cfg->app_timeout))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured app_timeout %f",
- vcm->my_pid, vcl_cfg->app_timeout);
- }
- else if (unformat (line_input, "session-timeout %f",
- &vcl_cfg->session_timeout))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured session_timeout %f",
- vcm->my_pid, vcl_cfg->session_timeout);
- }
- else if (unformat (line_input, "accept-timeout %f",
- &vcl_cfg->accept_timeout))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] configured accept_timeout %f",
- vcm->my_pid, vcl_cfg->accept_timeout);
- }
- else if (unformat (line_input, "}"))
- {
- vc_cfg_input = 0;
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] completed parsing vppcom config!",
- vcm->my_pid);
- goto input_done;
- }
- else
- {
- if (line_input->buffer[line_input->index] != '#')
- {
- clib_warning ("[%d] Unknown vppcom config option: '%s'",
- vcm->my_pid, (char *)
- &line_input->buffer[line_input->index]);
- }
- }
- }
- }
-
-input_done:
- unformat_free (input);
-
-file_done:
- if (fd >= 0)
- close (fd);
-}
-
-/*
- * VPPCOM Public API functions
- */
-int
-vppcom_app_create (char *app_name)
-{
- vppcom_main_t *vcm = &vppcom_main;
- vppcom_cfg_t *vcl_cfg = &vcm->cfg;
- u8 *heap;
- mheap_t *h;
- int rv;
-
- if (!vcm->init)
- {
- char *conf_fname;
-
- vcm->init = 1;
- vcm->my_pid = getpid ();
- clib_fifo_validate (vcm->client_session_index_fifo,
- vcm->cfg.listen_queue_size);
- vppcom_cfg_init (vcl_cfg);
- conf_fname = getenv (VPPCOM_CONF_ENV);
- if (!conf_fname)
- {
- conf_fname = VPPCOM_CONF_DEFAULT;
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] getenv '%s' failed!", vcm->my_pid,
- VPPCOM_CONF_ENV);
- }
- vppcom_cfg_heapsize (conf_fname);
- vppcom_cfg_read (conf_fname);
- vcm->bind_session_index = ~0;
- vcm->main_cpu = os_get_thread_index ();
- heap = clib_mem_get_per_cpu_heap ();
- h = mheap_header (heap);
-
- /* make the main heap thread-safe */
- h->flags |= MHEAP_FLAG_THREAD_SAFE;
-
- vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
-
- clib_time_init (&vcm->clib_time);
- vppcom_init_error_string_table ();
- svm_fifo_segment_init (vcl_cfg->segment_baseva,
- 20 /* timeout in secs */ );
- clib_spinlock_init (&vcm->sessions_lockp);
- vppcom_api_hookup ();
- }
-
- if (vcm->my_client_index == ~0)
- {
- vcm->app_state = STATE_APP_START;
- rv = vppcom_connect_to_vpp (app_name);
- if (rv)
- {
- clib_warning ("[%d] couldn't connect to VPP.", vcm->my_pid);
- return rv;
- }
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sending session enable", vcm->my_pid);
-
- rv = vppcom_app_session_enable ();
- if (rv)
- {
- clib_warning ("[%d] vppcom_app_session_enable() failed!",
- vcm->my_pid);
- return rv;
- }
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sending app attach", vcm->my_pid);
-
- rv = vppcom_app_attach ();
- if (rv)
- {
- clib_warning ("[%d] vppcom_app_attach() failed!", vcm->my_pid);
- return rv;
- }
- }
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] app_name '%s', my_client_index %d (0x%x)",
- vcm->my_pid, app_name, vcm->my_client_index,
- vcm->my_client_index);
-
- return VPPCOM_OK;
-}
-
-void
-vppcom_app_destroy (void)
-{
- vppcom_main_t *vcm = &vppcom_main;
- int rv;
-
- if (vcm->my_client_index == ~0)
- return;
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] detaching from VPP, my_client_index %d (0x%x)",
- vcm->my_pid, vcm->my_client_index, vcm->my_client_index);
-
- vppcom_app_detach ();
- rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] application detach timed out, rv = %s (%d)",
- vcm->my_pid, vppcom_retval_str (rv), rv);
- }
- vl_client_disconnect_from_vlib ();
- vcm->my_client_index = ~0;
- vcm->app_state = STATE_APP_START;
-}
-
-int
-vppcom_session_create (u32 vrf, u8 proto, u8 is_nonblocking)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session;
- u32 session_index;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- pool_get (vcm->sessions, session);
- memset (session, 0, sizeof (*session));
- session_index = session - vcm->sessions;
-
- session->vrf = vrf;
- session->proto = proto;
- session->state = STATE_START;
- session->is_nonblocking = is_nonblocking ? 1 : 0;
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
-
- return (int) session_index;
-}
-
-int
-vppcom_session_close (uint32_t session_index)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session = 0;
- int rv;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- goto done;
- }
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
-
- if (session->is_vep)
- {
- u32 next_sid;
- for (next_sid = session->vep.next_sid; next_sid != ~0;
- next_sid = session->vep.next_sid)
- {
- rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 0);
- if ((VPPCOM_DEBUG > 0) && (rv < 0))
- clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, "
- "rv = %s (%d)", session_index, next_sid,
- vcm->my_pid, session_index,
- vppcom_retval_str (rv), rv);
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning
- ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- goto done;
- }
- clib_spinlock_unlock (&vcm->sessions_lockp);
- }
- }
- else
- {
- if (session->is_vep_session)
- {
- u32 vep_idx = session->vep.vep_idx;
- rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0);
- if ((VPPCOM_DEBUG > 0) && (rv < 0))
- clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, "
- "rv = %s (%d)", vep_idx, session_index,
- vcm->my_pid, session_index,
- vppcom_retval_str (rv), rv);
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning
- ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- goto done;
- }
- clib_spinlock_unlock (&vcm->sessions_lockp);
- }
-
- if (session->is_cut_thru && session->is_server &&
- (session->state == STATE_ACCEPT))
- {
- rv = vppcom_session_unbind_cut_thru (session);
- if ((VPPCOM_DEBUG > 0) && (rv < 0))
- clib_warning ("[%d] unbind cut-thru (session %d) failed, "
- "rv = %s (%d)",
- vcm->my_pid, session_index,
- vppcom_retval_str (rv), rv);
- }
- else if (session->is_server && session->is_listen)
- {
- rv = vppcom_session_unbind (session_index);
- if ((VPPCOM_DEBUG > 0) && (rv < 0))
- clib_warning ("[%d] unbind (session %d) failed, rv = %s (%d)",
- vcm->my_pid, session_index,
- vppcom_retval_str (rv), rv);
- }
- else if (session->state == STATE_CONNECT)
- {
- rv = vppcom_session_disconnect (session_index);
- if ((VPPCOM_DEBUG > 0) && (rv < 0))
- clib_warning ("[%d] disconnect (session %d) failed, rv = %s (%d)",
- vcm->my_pid, session_index,
- vppcom_retval_str (rv), rv);
- }
- }
- pool_put_index (vcm->sessions, session_index);
-done:
- return rv;
-}
-
-int
-vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session = 0;
- int rv;
-
- if (!ep || !ep->ip)
- return VPPCOM_EINVAL;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- return rv;
- }
-
- if (session->is_vep)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
- vcm->my_pid, session_index);
- return VPPCOM_EBADFD;
- }
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
-
- session->vrf = ep->vrf;
- session->lcl_addr.is_ip4 = ep->is_ip4;
- session->lcl_addr.ip46 = to_ip46 (!ep->is_ip4, ep->ip);
- session->port = ep->port;
-
- clib_spinlock_unlock (&vcm->sessions_lockp);
- return VPPCOM_OK;
-}
-
-int
-vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *listen_session = 0;
- int rv;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (listen_session_index, &listen_session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, listen_session_index);
- return rv;
- }
-
- if (listen_session->is_vep)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
- vcm->my_pid, listen_session_index);
- return VPPCOM_EBADFD;
- }
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid %d", vcm->my_pid, listen_session_index);
-
- ASSERT (vcm->bind_session_index == ~0);
- vcm->bind_session_index = listen_session_index;
- vppcom_send_bind_sock (listen_session);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- rv =
- vppcom_wait_for_session_state_change (listen_session_index, STATE_LISTEN,
- vcm->cfg.session_timeout);
- if (PREDICT_FALSE (rv))
- {
- vcm->bind_session_index = ~0;
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] server listen timed out, rv = %d (%d)",
- vcm->my_pid, vppcom_retval_str (rv), rv);
- return rv;
- }
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (listen_session_index, &listen_session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, listen_session_index);
- return rv;
- }
- listen_session->is_listen = 1;
- clib_fifo_validate (vcm->client_session_index_fifo, q_len);
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- return VPPCOM_OK;
-}
-
-int
-vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep,
- double wait_for_time)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *listen_session = 0;
- session_t *client_session = 0;
- u32 client_session_index;
- int rv;
- f64 wait_for;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (listen_session_index, &listen_session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, listen_session_index);
- return rv;
- }
-
- if (listen_session->is_vep)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
- vcm->my_pid, listen_session_index);
- return VPPCOM_EBADFD;
- }
-
- if (listen_session->state != STATE_LISTEN)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] session not in listen state, state = %s",
- vcm->my_pid,
- vppcom_session_state_str (listen_session->state));
- return VPPCOM_EBADFD;
- }
- wait_for = listen_session->is_nonblocking ? 0 :
- (wait_for_time < 0) ? vcm->cfg.accept_timeout : wait_for_time;
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid %d: %s (%d)", vcm->my_pid,
- listen_session_index,
- vppcom_session_state_str (listen_session->state),
- listen_session->state);
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- while (1)
- {
- rv = vppcom_wait_for_client_session_index (wait_for);
- if (rv)
- {
- if ((VPPCOM_DEBUG > 0))
- clib_warning ("[%d] sid %d, accept timed out, rv = %s (%d)",
- vcm->my_pid, listen_session_index,
- vppcom_retval_str (rv), rv);
- if ((wait_for == 0) || (wait_for_time > 0))
- return rv;
- }
- else
- break;
- }
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- clib_fifo_sub1 (vcm->client_session_index_fifo, client_session_index);
- rv = vppcom_session_at_index (client_session_index, &client_session);
- ASSERT (rv == VPPCOM_OK);
- ASSERT (client_session->peer_addr.is_ip4 ==
- listen_session->lcl_addr.is_ip4);
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] Got a request: client sid %d", vcm->my_pid,
- client_session_index);
-
- ep->vrf = client_session->vrf;
- ep->is_cut_thru = client_session->is_cut_thru;
- ep->is_ip4 = client_session->peer_addr.is_ip4;
- ep->port = client_session->port;
- if (client_session->peer_addr.is_ip4)
- clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip4,
- sizeof (ip4_address_t));
- else
- clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip6,
- sizeof (ip6_address_t));
- clib_spinlock_unlock (&vcm->sessions_lockp);
- return (int) client_session_index;
-}
-
-int
-vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session = 0;
- int rv;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- return rv;
- }
-
- if (session->is_vep)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
- vcm->my_pid, session_index);
- return VPPCOM_EBADFD;
- }
-
- if (session->state == STATE_CONNECT)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] session, sid (%u) already connected!",
- vcm->my_pid, session_index);
- return VPPCOM_OK;
- }
-
- session->vrf = server_ep->vrf;
- session->peer_addr.is_ip4 = server_ep->is_ip4;
- session->peer_addr.ip46 = to_ip46 (!server_ep->is_ip4, server_ep->ip);
- session->port = server_ep->port;
-
- if (VPPCOM_DEBUG > 0)
- {
- u8 *ip_str = format (0, "%U", format_ip46_address,
- &session->peer_addr.ip46,
- session->peer_addr.is_ip4);
- clib_warning ("[%d] connect sid %d to %s server port %d proto %s",
- vcm->my_pid, session_index, ip_str,
- clib_net_to_host_u16 (session->port),
- session->proto ? "UDP" : "TCP");
- vec_free (ip_str);
- }
-
- vppcom_send_connect_sock (session, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
- vcm->cfg.session_timeout);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] connect timed out, rv = %s (%d)",
- vcm->my_pid, vppcom_retval_str (rv), rv);
- return rv;
- }
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid %d connected!", vcm->my_pid, session_index);
-
- return VPPCOM_OK;
-}
-
-int
-vppcom_session_read (uint32_t session_index, void *buf, int n)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session = 0;
- svm_fifo_t *rx_fifo;
- int n_read = 0;
- int rv;
- char *fifo_str;
- u32 poll_et;
-
- ASSERT (buf);
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- return rv;
- }
-
- if (session->is_vep)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
- vcm->my_pid, session_index);
- return VPPCOM_EBADFD;
- }
-
- if (session->state == STATE_DISCONNECT)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid (%u) has been closed by remote peer!",
- vcm->my_pid, session_index);
- return VPPCOM_ECONNRESET;
- }
-
- rx_fifo = ((!session->is_cut_thru || session->is_server) ?
- session->server_rx_fifo : session->server_tx_fifo);
- fifo_str = ((!session->is_cut_thru || session->is_server) ?
- "server_rx_fifo" : "server_tx_fifo");
- poll_et = EPOLLET & session->vep.ev.events;
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- do
- {
- n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf);
- }
- while (!session->is_nonblocking && (n_read <= 0));
-
- if (poll_et && (n_read <= 0))
- {
- clib_spinlock_lock (&vcm->sessions_lockp);
- session->vep.et_mask |= EPOLLIN;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- }
-
- if ((VPPCOM_DEBUG > 2) && (n_read > 0))
- clib_warning ("[%d] sid %d, read %d bytes from %s (%p)", vcm->my_pid,
- session_index, n_read, fifo_str, rx_fifo);
-
- return (n_read <= 0) ? VPPCOM_EAGAIN : n_read;
-}
-
-static inline int
-vppcom_session_read_ready (session_t * session, u32 session_index)
-{
- vppcom_main_t *vcm = &vppcom_main;
- svm_fifo_t *rx_fifo;
- int ready = 0;
-
- /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
- if (session->is_vep)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
- vcm->my_pid, session_index);
- return VPPCOM_EBADFD;
- }
-
- if (session->state == STATE_DISCONNECT)
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid (%u) has been closed by remote peer!",
- vcm->my_pid, session_index);
- return VPPCOM_ECONNRESET;
- }
-
- if (session->is_listen)
- ready = clib_fifo_elts (vcm->client_session_index_fifo);
- else
- {
- rx_fifo = ((!session->is_cut_thru || session->is_server) ?
- session->server_rx_fifo : session->server_tx_fifo);
-
- ready = svm_fifo_max_dequeue (rx_fifo);
- }
-
- if (VPPCOM_DEBUG > 3)
- clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", vcm->my_pid,
- session_index,
- session->is_server ? "server_rx_fifo" : "server_tx_fifo",
- rx_fifo, ready);
- if ((session->vep.ev.events & EPOLLET) && (ready == 0))
- session->vep.et_mask |= EPOLLIN;
-
- return ready;
-}
-
-int
-vppcom_session_write (uint32_t session_index, void *buf, int n)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session = 0;
- svm_fifo_t *tx_fifo;
- unix_shared_memory_queue_t *q;
- session_fifo_event_t evt;
- int rv, n_write;
- char *fifo_str;
- u32 poll_et;
-
- ASSERT (buf);
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- return rv;
- }
-
- if (session->is_vep)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
- vcm->my_pid, session_index);
- return VPPCOM_EBADFD;
- }
-
- if (session->state == STATE_DISCONNECT)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid (%u) has been closed by remote peer!",
- vcm->my_pid, session_index);
- return VPPCOM_ECONNRESET;
- }
-
- tx_fifo = ((!session->is_cut_thru || session->is_server) ?
- session->server_tx_fifo : session->server_rx_fifo);
- fifo_str = ((!session->is_cut_thru || session->is_server) ?
- "server_tx_fifo" : "server_rx_fifo");
- q = session->vpp_event_queue;
- poll_et = EPOLLET & session->vep.ev.events;
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- do
- {
- n_write = svm_fifo_enqueue_nowait (tx_fifo, n, buf);
- }
- while (!session->is_nonblocking && (n_write <= 0));
-
- /* If event wasn't set, add one */
- if (!session->is_cut_thru && (n_write > 0) && svm_fifo_set_event (tx_fifo))
- {
- int rval;
-
- /* Fabricate TX event, send to vpp */
- evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_APP_TX;
-
- rval = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rval))
- {
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] invalid session, sid (%u) has been closed!",
- vcm->my_pid, session_index);
- return rval;
- }
- ASSERT (q);
- unix_shared_memory_queue_add (q, (u8 *) & evt,
- 0 /* do wait for mutex */ );
- }
-
- if (poll_et && (n_write <= 0))
- {
- clib_spinlock_lock (&vcm->sessions_lockp);
- session->vep.et_mask |= EPOLLOUT;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- }
-
- if (VPPCOM_DEBUG > 2)
- {
- if (n_write == -2)
- clib_warning ("[%d] sid %d, FIFO-FULL %s (%p)", vcm->my_pid,
- session_index, fifo_str, tx_fifo);
- else
- clib_warning ("[%d] sid %d, wrote %d bytes to %s (%p)", vcm->my_pid,
- session_index, n_write, fifo_str, tx_fifo);
- }
- return (n_write < 0) ? VPPCOM_EAGAIN : n_write;
-}
-
-static inline int
-vppcom_session_write_ready (session_t * session, u32 session_index)
-{
- vppcom_main_t *vcm = &vppcom_main;
- svm_fifo_t *tx_fifo;
- char *fifo_str;
- int ready;
-
- /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
- if (session->is_vep)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
- vcm->my_pid, session_index);
- return VPPCOM_EBADFD;
- }
-
- if (session->state == STATE_DISCONNECT)
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] sid (%u) has been closed by remote peer!",
- vcm->my_pid, session_index);
- return VPPCOM_ECONNRESET;
- }
-
- tx_fifo = ((!session->is_cut_thru || session->is_server) ?
- session->server_tx_fifo : session->server_rx_fifo);
- fifo_str = ((!session->is_cut_thru || session->is_server) ?
- "server_tx_fifo" : "server_rx_fifo");
-
- ready = svm_fifo_max_enqueue (tx_fifo);
-
- if (VPPCOM_DEBUG > 3)
- clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", vcm->my_pid,
- session_index, fifo_str, tx_fifo, ready);
- if ((session->vep.ev.events & EPOLLET) && (ready == 0))
- session->vep.et_mask |= EPOLLOUT;
-
- return ready;
-}
-
-int
-vppcom_select (unsigned long n_bits, unsigned long *read_map,
- unsigned long *write_map, unsigned long *except_map,
- double time_to_wait)
-{
- vppcom_main_t *vcm = &vppcom_main;
- u32 session_index;
- session_t *session = 0;
- int rv, bits_set = 0;
- f64 timeout = clib_time_now (&vcm->clib_time) + time_to_wait;
- u32 minbits = clib_max (n_bits, BITS (uword));
-
- ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
-
- if (n_bits && read_map)
- {
- clib_bitmap_validate (vcm->rd_bitmap, minbits);
- clib_memcpy (vcm->rd_bitmap, read_map, vec_len (vcm->rd_bitmap));
- memset (read_map, 0, vec_len (vcm->rd_bitmap));
- }
- if (n_bits && write_map)
- {
- clib_bitmap_validate (vcm->wr_bitmap, minbits);
- clib_memcpy (vcm->wr_bitmap, write_map, vec_len (vcm->wr_bitmap));
- memset (write_map, 0, vec_len (vcm->wr_bitmap));
- }
- if (n_bits && except_map)
- {
- clib_bitmap_validate (vcm->ex_bitmap, minbits);
- clib_memcpy (vcm->ex_bitmap, except_map, vec_len (vcm->ex_bitmap));
- memset (except_map, 0, vec_len (vcm->ex_bitmap));
- }
-
- do
- {
- /* *INDENT-OFF* */
- if (n_bits)
- {
- if (read_map)
- {
- clib_bitmap_foreach (session_index, vcm->rd_bitmap,
- ({
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (rv < 0)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] session %d specified in "
- "read_map is closed.", vcm->my_pid,
- session_index);
- bits_set = VPPCOM_EBADFD;
- goto select_done;
- }
-
- rv = vppcom_session_read_ready (session, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (except_map && vcm->ex_bitmap &&
- clib_bitmap_get (vcm->ex_bitmap, session_index) &&
- (rv < 0))
- {
- // TBD: clib_warning
- clib_bitmap_set_no_check (except_map, session_index, 1);
- bits_set++;
- }
- else if (rv > 0)
- {
- // TBD: clib_warning
- clib_bitmap_set_no_check (read_map, session_index, 1);
- bits_set++;
- }
- }));
- }
-
- if (write_map)
- {
- clib_bitmap_foreach (session_index, vcm->wr_bitmap,
- ({
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (rv < 0)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("[%d] session %d specified in "
- "write_map is closed.", vcm->my_pid,
- session_index);
- bits_set = VPPCOM_EBADFD;
- goto select_done;
- }
-
- rv = vppcom_session_write_ready (session, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (write_map && (rv > 0))
- {
- // TBD: clib_warning
- clib_bitmap_set_no_check (write_map, session_index, 1);
- bits_set++;
- }
- }));
- }
-
- if (except_map)
- {
- clib_bitmap_foreach (session_index, vcm->ex_bitmap,
- ({
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (session_index, &session);
- if (rv < 0)
- {
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] session %d specified in "
- "except_map is closed.", vcm->my_pid,
- session_index);
- bits_set = VPPCOM_EBADFD;
- goto select_done;
- }
-
- rv = vppcom_session_read_ready (session, session_index);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (rv < 0)
- {
- // TBD: clib_warning
- clib_bitmap_set_no_check (except_map, session_index, 1);
- bits_set++;
- }
- }));
- }
- }
- /* *INDENT-ON* */
- }
- while (clib_time_now (&vcm->clib_time) < timeout);
-
-select_done:
- return (bits_set);
-}
-
-static inline void
-vep_verify_epoll_chain (u32 vep_idx)
-{
- session_t *session;
- vppcom_epoll_t *vep;
- int rv;
- u32 sid;
-
- if (VPPCOM_DEBUG < 1)
- return;
-
- /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
- rv = vppcom_session_at_index (vep_idx, &session);
- if (PREDICT_FALSE (rv))
- {
- clib_warning ("ERROR: Invalid vep_idx (%u)!", vep_idx);
- goto done;
- }
- if (PREDICT_FALSE (!session->is_vep))
- {
- clib_warning ("ERROR: vep_idx (%u) is not a vep!", vep_idx);
- goto done;
- }
- if (VPPCOM_DEBUG > 1)
- clib_warning ("vep_idx (%u): Dumping epoll chain\n"
- "{\n"
- " is_vep = %u\n"
- " is_vep_session = %u\n"
- " wait_cont_idx = 0x%x (%u)\n"
- "}\n",
- vep_idx, session->is_vep, session->is_vep_session,
- session->wait_cont_idx, session->wait_cont_idx);
- do
- {
- vep = &session->vep;
- sid = vep->next_sid;
- if (session->is_vep_session)
- {
- if (VPPCOM_DEBUG > 1)
- clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
- "{\n"
- " next_sid = 0x%x (%u)\n"
- " prev_sid = 0x%x (%u)\n"
- " vep_idx = 0x%x (%u)\n"
- " ev.events = 0x%x\n"
- " ev.data.u64 = 0x%llx\n"
- " et_mask = 0x%x\n"
- "}\n",
- vep_idx, sid, sid,
- vep->next_sid, vep->next_sid,
- vep->prev_sid, vep->prev_sid,
- vep->vep_idx, vep->vep_idx,
- vep->ev.events, vep->ev.data.u64, vep->et_mask);
- }
- if (sid != ~0)
- {
- rv = vppcom_session_at_index (sid, &session);
- if (PREDICT_FALSE (rv))
- {
- clib_warning ("ERROR: Invalid sid (%u)!", sid);
- goto done;
- }
- if (PREDICT_FALSE (session->is_vep))
- clib_warning ("ERROR: sid (%u) is a vep!", vep_idx);
- else if (PREDICT_FALSE (!session->is_vep_session))
- {
- clib_warning ("ERROR: session (%u) is not a vep session!", sid);
- goto done;
- }
- if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
- clib_warning ("ERROR: session (%u) vep_idx (%u) != "
- "vep_idx (%u)!",
- sid, session->vep.vep_idx, vep_idx);
- }
- }
- while (sid != ~0);
-
-done:
- if (VPPCOM_DEBUG > 1)
- clib_warning ("vep_idx (%u): Dump complete!", vep_idx);
-}
-
-int
-vppcom_epoll_create (void)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *vep_session;
- u32 vep_idx;
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- pool_get (vcm->sessions, vep_session);
- memset (vep_session, 0, sizeof (*vep_session));
- vep_idx = vep_session - vcm->sessions;
-
- vep_session->is_vep = 1;
- vep_session->vep.vep_idx = ~0;
- vep_session->vep.next_sid = ~0;
- vep_session->vep.prev_sid = ~0;
- vep_session->wait_cont_idx = ~0;
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- if (VPPCOM_DEBUG > 0)
- clib_warning ("Created vep_idx %u!", vep_idx);
-
- return (vep_idx);
-}
-
-int
-vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index,
- struct epoll_event *event)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *vep_session;
- session_t *session;
- int rv;
-
- if (vep_idx == session_index)
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("ERROR: vep_idx == session_index (%u)!", vep_idx);
- return VPPCOM_EINVAL;
- }
-
- clib_spinlock_lock (&vcm->sessions_lockp);
- rv = vppcom_session_at_index (vep_idx, &vep_session);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("ERROR: Invalid vep_idx (%u)!", vep_idx);
- goto done;
- }
- if (PREDICT_FALSE (!vep_session->is_vep))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("ERROR: vep_idx (%u) is not a vep!", vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
- }
-
- ASSERT (vep_session->vep.vep_idx == ~0);
- ASSERT (vep_session->vep.prev_sid == ~0);
-
- rv = vppcom_session_at_index (session_index, &session);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("ERROR: Invalid session_index (%u)!", session_index);
- goto done;
- }
- if (PREDICT_FALSE (session->is_vep))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
- }
-
- switch (op)
- {
- case EPOLL_CTL_ADD:
- if (PREDICT_FALSE (!event))
- {
- clib_warning ("NULL pointer to epoll_event structure!");
- rv = VPPCOM_EINVAL;
- goto done;
- }
- if (vep_session->vep.next_sid != ~0)
- {
- session_t *next_session;
- rv = vppcom_session_at_index (vep_session->vep.next_sid,
- &next_session);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("EPOLL_CTL_ADD: Invalid vep.next_sid (%u) on"
- " vep_idx (%u)!", vep_session->vep.next_sid,
- vep_idx);
- goto done;
- }
- ASSERT (next_session->vep.prev_sid == vep_idx);
- next_session->vep.prev_sid = session_index;
- }
- session->vep.next_sid = vep_session->vep.next_sid;
- session->vep.prev_sid = vep_idx;
- session->vep.vep_idx = vep_idx;
- session->vep.et_mask = VEP_DEFAULT_ET_MASK;
- session->vep.ev = *event;
- session->is_vep_session = 1;
- vep_session->vep.next_sid = session_index;
- if (VPPCOM_DEBUG > 1)
- clib_warning ("EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x,"
- " data 0x%llx!", vep_idx, session_index,
- event->events, event->data.u64);
- break;
-
- case EPOLL_CTL_MOD:
- if (PREDICT_FALSE (!event))
- {
- clib_warning ("NULL pointer to epoll_event structure!");
- rv = VPPCOM_EINVAL;
- goto done;
- }
- if (PREDICT_FALSE (!session->is_vep_session &&
- (session->vep.vep_idx != vep_idx)))
- {
- if (VPPCOM_DEBUG > 0)
- {
- if (!session->is_vep_session)
- clib_warning ("EPOLL_CTL_MOD: session (%u) is not "
- "a vep session!", session_index);
- else
- clib_warning ("EPOLL_CTL_MOD: session (%u) vep_idx (%u) != "
- "vep_idx (%u)!", session_index,
- session->vep.vep_idx, vep_idx);
- }
- rv = VPPCOM_EINVAL;
- goto done;
- }
- session->vep.et_mask = VEP_DEFAULT_ET_MASK;
- session->vep.ev = *event;
- if (VPPCOM_DEBUG > 1)
- clib_warning ("EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
- " data 0x%llx!", vep_idx, session_index,
- event->events, event->data.u64);
- break;
-
- case EPOLL_CTL_DEL:
- if (PREDICT_FALSE (!session->is_vep_session &&
- (session->vep.vep_idx != vep_idx)))
- {
- if (VPPCOM_DEBUG > 0)
- {
- if (!session->is_vep_session)
- clib_warning ("EPOLL_CTL_DEL: session (%u) is not "
- "a vep session!", session_index);
- else
- clib_warning ("EPOLL_CTL_DEL: session (%u) vep_idx (%u) != "
- "vep_idx (%u)!", session_index,
- session->vep.vep_idx, vep_idx);
- }
- rv = VPPCOM_EINVAL;
- goto done;
- }
-
- vep_session->wait_cont_idx =
- (vep_session->wait_cont_idx == session_index) ?
- session->vep.next_sid : vep_session->wait_cont_idx;
-
- if (session->vep.prev_sid == vep_idx)
- vep_session->vep.next_sid = session->vep.next_sid;
- else
- {
- session_t *prev_session;
- rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("EPOLL_CTL_DEL: Invalid vep.prev_sid (%u) on"
- " sid (%u)!", session->vep.prev_sid,
- session_index);
- goto done;
- }
- ASSERT (prev_session->vep.next_sid == session_index);
- prev_session->vep.next_sid = session->vep.next_sid;
- }
- if (session->vep.next_sid != ~0)
- {
- session_t *next_session;
- rv = vppcom_session_at_index (session->vep.next_sid, &next_session);
- if (PREDICT_FALSE (rv))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("EPOLL_CTL_DEL: Invalid vep.next_sid (%u) on"
- " sid (%u)!", session->vep.next_sid,
- session_index);
- goto done;
- }
- ASSERT (next_session->vep.prev_sid == session_index);
- next_session->vep.prev_sid = session->vep.prev_sid;
- }
-
- memset (&session->vep, 0, sizeof (session->vep));
- session->vep.next_sid = ~0;
- session->vep.prev_sid = ~0;
- session->vep.vep_idx = ~0;
- session->is_vep_session = 0;
- if (VPPCOM_DEBUG > 1)
- clib_warning ("EPOLL_CTL_DEL: vep_idx %u, sid %u!", vep_idx,
- session_index);
- break;
-
- default:
- clib_warning ("Invalid operation (%d)!", op);
- rv = VPPCOM_EINVAL;
- }
-
- vep_verify_epoll_chain (vep_idx);
-
-done:
- clib_spinlock_unlock (&vcm->sessions_lockp);
- return rv;
-}
-
-#define VCL_LOCK_AND_GET_SESSION(I, S) \
-do { \
- vppcom_main_t *vcm = &vppcom_main; \
- \
- clib_spinlock_lock (&vcm->sessions_lockp); \
- rv = vppcom_session_at_index (I, S); \
- if (PREDICT_FALSE (rv)) \
- { \
- clib_spinlock_unlock (&vcm->sessions_lockp); \
- \
- if (VPPCOM_DEBUG > 0) \
- clib_warning ("ERROR: Invalid ##I (%u)!", I); \
- \
- goto done; \
- } \
-} while (0)
-
-int
-vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events,
- int maxevents, double wait_for_time)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *vep_session;
- int rv;
- f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
- int num_ev = 0;
- u32 vep_next_sid, wait_cont_idx;
- u8 is_vep;
-
- if (PREDICT_FALSE (maxevents <= 0))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("ERROR: Invalid maxevents (%d)!", maxevents);
- return VPPCOM_EINVAL;
- }
- if (PREDICT_FALSE (wait_for_time < 0))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("ERROR: Invalid wait_for_time (%f)!", wait_for_time);
- return VPPCOM_EINVAL;
- }
- memset (events, 0, sizeof (*events) * maxevents);
-
- VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
- vep_next_sid = vep_session->vep.next_sid;
- is_vep = vep_session->is_vep;
- wait_cont_idx = vep_session->wait_cont_idx;
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- if (PREDICT_FALSE (!is_vep))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("ERROR: vep_idx (%u) is not a vep!", vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
- }
- if ((VPPCOM_DEBUG > 0) && (PREDICT_FALSE (vep_next_sid == ~0)))
- {
- clib_warning ("WARNING: vep_idx (%u) is empty!", vep_idx);
- goto done;
- }
-
- do
- {
- u32 sid;
- u32 next_sid = ~0;
- session_t *session;
-
- for (sid = (wait_cont_idx == ~0) ? vep_next_sid : wait_cont_idx;
- sid != ~0; sid = next_sid)
- {
- u32 session_events, et_mask, clear_et_mask, session_vep_idx;
- u8 add_event, is_vep_session;
- int ready;
- u64 session_ev_data;
-
- VCL_LOCK_AND_GET_SESSION (sid, &session);
- next_sid = session->vep.next_sid;
- session_events = session->vep.ev.events;
- et_mask = session->vep.et_mask;
- is_vep = session->is_vep;
- is_vep_session = session->is_vep_session;
- session_vep_idx = session->vep.vep_idx;
- session_ev_data = session->vep.ev.data.u64;
- clib_spinlock_unlock (&vcm->sessions_lockp);
-
- if (PREDICT_FALSE (is_vep))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("ERROR: sid (%u) is a vep!", vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
- }
- if (PREDICT_FALSE (!is_vep_session))
- {
- if (VPPCOM_DEBUG > 0)
- clib_warning ("EPOLL_CTL_MOD: session (%u) is not "
- "a vep session!", sid);
- rv = VPPCOM_EINVAL;
- goto done;
- }
- if (PREDICT_FALSE (session_vep_idx != vep_idx))
- {
- clib_warning ("EPOLL_CTL_MOD: session (%u) "
- "vep_idx (%u) != vep_idx (%u)!",
- sid, session->vep.vep_idx, vep_idx);
- rv = VPPCOM_EINVAL;
- goto done;
- }
-
- add_event = clear_et_mask = 0;
-
- if ((EPOLLIN & session_events) && (EPOLLIN & et_mask))
- {
- VCL_LOCK_AND_GET_SESSION (sid, &session);
- ready = vppcom_session_read_ready (session, sid);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (ready > 0)
- {
- add_event = 1;
- events[num_ev].events |= EPOLLIN;
- if (EPOLLET & session_events)
- clear_et_mask |= EPOLLIN;
- }
- else if (ready < 0)
- {
- add_event = 1;
- switch (ready)
- {
- case VPPCOM_ECONNRESET:
- events[num_ev].events |= EPOLLHUP | EPOLLRDHUP;
- break;
-
- default:
- events[num_ev].events |= EPOLLERR;
- break;
- }
- }
- }
-
- if ((EPOLLOUT & session_events) && (EPOLLOUT & et_mask))
- {
- VCL_LOCK_AND_GET_SESSION (sid, &session);
- ready = vppcom_session_write_ready (session, sid);
- clib_spinlock_unlock (&vcm->sessions_lockp);
- if (ready > 0)
- {
- add_event = 1;
- events[num_ev].events |= EPOLLOUT;
- if (EPOLLET & session_events)
- clear_et_mask |= EPOLLOUT;
- }
- else if (ready < 0)
- {
- add_event = 1;
- switch (ready)
- {
- case VPPCOM_ECONNRESET:
- events[num_ev].events |= EPOLLHUP;
- break;
-
- default:
- events[num_ev].events |= EPOLLERR;
- break;
- }
- }
- }
-
- if (add_event)
- {
- events[num_ev].data.u64 = session_ev_data;
- if (EPOLLONESHOT & session_events)
- {
- VCL_LOCK_AND_GET_SESSION (sid, &session);
- session->vep.ev.events = 0;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- }
- num_ev++;
- if (num_ev == maxevents)
- {
- VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
- vep_session->wait_cont_idx = next_sid;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- goto done;
- }
- }
- if (wait_cont_idx != ~0)
- {
- if (next_sid == ~0)
- next_sid = vep_next_sid;
- else if (next_sid == wait_cont_idx)
- next_sid = ~0;
- }
- }
- }
- while ((num_ev == 0) && (clib_time_now (&vcm->clib_time) <= timeout));
-
- if (wait_cont_idx != ~0)
- {
- VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
- vep_session->wait_cont_idx = ~0;
- clib_spinlock_unlock (&vcm->sessions_lockp);
- }
-done:
- return (rv != VPPCOM_OK) ? rv : num_ev;
-}
-
-int
-vppcom_session_attr (uint32_t session_index, uint32_t op,
- void *buffer, uint32_t * buflen)
-{
- vppcom_main_t *vcm = &vppcom_main;
- session_t *session;
- int rv = VPPCOM_OK;
- u32 *flags = buffer;
- vppcom_endpt_t *ep = buffer;
-
- VCL_LOCK_AND_GET_SESSION (session_index, &session);
- switch (op)
- {
- case VPPCOM_ATTR_GET_NREAD:
- rv = vppcom_session_read_ready (session, session_index);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("VPPCOM_ATTR_GET_NREAD: nread = %d", rv);
-
- break;
-
- case VPPCOM_ATTR_PEEK_NREAD:
- /* TBD */
- break;
-
- case VPPCOM_ATTR_GET_FLAGS:
- if (buffer && buflen && (*buflen >= sizeof (*flags)))
- {
- *flags = O_RDWR | ((session->is_nonblocking) ? O_NONBLOCK : 0);
- *buflen = sizeof (*flags);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("VPPCOM_ATTR_GET_FLAGS: flags = 0x%08x, "
- "is_nonblocking = %u", *flags,
- session->is_nonblocking);
- }
- else
- rv = VPPCOM_EINVAL;
- break;
-
- case VPPCOM_ATTR_SET_FLAGS:
- if (buffer && buflen && (*buflen >= sizeof (*flags)))
- {
- session->is_nonblocking = (*flags & O_NONBLOCK) ? 1 : 0;
- if (VPPCOM_DEBUG > 0)
- clib_warning ("VPPCOM_ATTR_SET_FLAGS: flags = 0x%08x, "
- "is_nonblocking = %u", *flags,
- session->is_nonblocking);
- }
- else
- rv = VPPCOM_EINVAL;
- break;
-
- case VPPCOM_ATTR_GET_PEER_ADDR:
- if (buffer && buflen && (*buflen >= sizeof (*ep)))
- {
- ep->vrf = session->vrf;
- ep->is_ip4 = session->peer_addr.is_ip4;
- ep->port = session->port;
- if (session->peer_addr.is_ip4)
- clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4,
- sizeof (ip4_address_t));
- else
- clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6,
- sizeof (ip6_address_t));
- *buflen = sizeof (*ep);
- if (VPPCOM_DEBUG > 0)
- clib_warning ("VPPCOM_ATTR_GET_PEER_ADDR: is_ip4 = %u, "
- "addr = %U", ep->is_ip4, format_ip46_address,
- &session->peer_addr.ip46, ep->is_ip4);
- }
- else
- rv = VPPCOM_EINVAL;
- break;
-
- case VPPCOM_ATTR_GET_LCL_ADDR:
- if (buffer && buflen && (*buflen >= sizeof (*ep)))
- {
- ep->vrf = session->vrf;
- ep->is_ip4 = session->lcl_addr.is_ip4;
- ep->port = session->port;
- if (session->lcl_addr.is_ip4)
- clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip4,
- sizeof (ip4_address_t));
- else
- clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip6,
- sizeof (ip6_address_t));
- *buflen = sizeof (*ep);
- if (VPPCOM_DEBUG > 0)
- if (VPPCOM_DEBUG > 0)
- clib_warning ("VPPCOM_ATTR_GET_LCL_ADDR: is_ip4 = %u, "
- "addr = %U", ep->is_ip4, format_ip46_address,
- &session->lcl_addr.ip46, ep->is_ip4);
- }
- else
- rv = VPPCOM_EINVAL;
- break;
-
- case VPPCOM_ATTR_SET_REUSEADDR:
- break;
-
- case VPPCOM_ATTR_SET_BROADCAST:
- break;
-
- case VPPCOM_ATTR_SET_V6ONLY:
- break;
-
- case VPPCOM_ATTR_SET_KEEPALIVE:
- break;
-
- case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
- break;
-
- case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
- break;
-
- default:
- rv = VPPCOM_EINVAL;
- break;
- }
-
-done:
- clib_spinlock_unlock (&vcm->sessions_lockp);
- return rv;
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */