diff options
| author |   Florin Coras <fcoras@cisco.com> | 2023-01-30 11:18:36 -0800 |
|---|---|---|
| committer |   Dave Barach <vpp@barachs.net> | 2023-02-28 22:50:36 +0000 |
| commit | 3d6156fed8be0c1e3ffe081be16f82be5be603fd (patch) | |
| tree | 78a29e173f1611f2e5a630c93f3d53d67466d440 /src/vnet/tcp/tcp.c | |
| parent | 045a6ae99db25d3ce8a83d1f291715ff033a7f11 (diff) | |
session: consolidate port alloc logic
Move port allocation logic from transports into generic transport layer.
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I55a21f185d00f5e118c36bcc4a6ffba2cbda885e
Diffstat (limited to 'src/vnet/tcp/tcp.c')
| -rw-r--r-- | src/vnet/tcp/tcp.c | 29 |
1 files changed, 8 insertions, 21 deletions
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c index c0445b9048b..6e0c1474dd5 100644 --- a/src/vnet/tcp/tcp.c +++ b/src/vnet/tcp/tcp.c @@ -764,11 +764,13 @@ tcp_connection_init_vars (tcp_connection_t * tc) } static int -tcp_alloc_custom_local_endpoint (tcp_main_t * tm, ip46_address_t * lcl_addr, - u16 * lcl_port, u8 is_ip4) +tcp_alloc_custom_local_endpoint (ip46_address_t *lcl_addr, u16 *lcl_port, + transport_endpoint_cfg_t *rmt) { + tcp_main_t *tm = vnet_get_tcp_main (); int index, port; - if (is_ip4) + + if (rmt->is_ip4) { index = tm->last_v4_addr_rotor++; if (tm->last_v4_addr_rotor >= vec_len (tcp_cfg.ip4_src_addrs)) @@ -784,7 +786,7 @@ tcp_alloc_custom_local_endpoint (tcp_main_t * tm, ip46_address_t * lcl_addr, clib_memcpy_fast (&lcl_addr->ip6, &tcp_cfg.ip6_src_addrs[index], sizeof (ip6_address_t)); } - port = transport_alloc_local_port (TRANSPORT_PROTO_TCP, lcl_addr); + port = transport_alloc_local_port (TRANSPORT_PROTO_TCP, lcl_addr, rmt); if (port < 1) return SESSION_E_NOPORT; *lcl_port = port; @@ -794,7 +796,6 @@ tcp_alloc_custom_local_endpoint (tcp_main_t * tm, ip46_address_t * lcl_addr, static int tcp_session_open (transport_endpoint_cfg_t * rmt) { - tcp_main_t *tm = vnet_get_tcp_main (); tcp_connection_t *tc; ip46_address_t lcl_addr; u16 lcl_port; @@ -805,27 +806,13 @@ tcp_session_open (transport_endpoint_cfg_t * rmt) */ if ((rmt->is_ip4 && vec_len (tcp_cfg.ip4_src_addrs)) || (!rmt->is_ip4 && vec_len (tcp_cfg.ip6_src_addrs))) - rv = tcp_alloc_custom_local_endpoint (tm, &lcl_addr, &lcl_port, - rmt->is_ip4); + rv = tcp_alloc_custom_local_endpoint (&lcl_addr, &lcl_port, rmt); else rv = transport_alloc_local_endpoint (TRANSPORT_PROTO_TCP, rmt, &lcl_addr, &lcl_port); if (rv) - { - if (rv != SESSION_E_PORTINUSE) - return rv; - - if (session_lookup_connection (rmt->fib_index, &lcl_addr, &rmt->ip, - lcl_port, rmt->port, TRANSPORT_PROTO_TCP, - rmt->is_ip4)) - return SESSION_E_PORTINUSE; - - /* 5-tuple is available so increase lcl endpoint refcount and proceed - * with connection allocation */ - transport_share_local_endpoint (TRANSPORT_PROTO_TCP, &lcl_addr, - lcl_port); - } + return rv; /* * Create connection and send SYN |