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-rw-r--r--src/vnet/tcp/tcp.h1
-rw-r--r--src/vnet/tcp/tcp_output.c16
2 files changed, 11 insertions, 6 deletions
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index 7309e0ad109..4b0a0ddea53 100644
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -435,6 +435,7 @@ typedef struct _tcp_connection
u32 last_fib_check; /**< Last time we checked fib route for peer */
u16 mss; /**< Our max seg size that includes options */
u32 timestamp_delta; /**< Offset for timestamp */
+ u32 ipv6_flow_label; /**< flow label for ipv6 header */
} tcp_connection_t;
/* *INDENT-OFF* */
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c
index 71e9d7bbdb0..c7e9792afaa 100644
--- a/src/vnet/tcp/tcp_output.c
+++ b/src/vnet/tcp/tcp_output.c
@@ -842,8 +842,10 @@ tcp_send_reset_w_pkt (tcp_connection_t * tc, vlib_buffer_t * pkt,
int bogus = ~0;
ASSERT ((pkt_ih6->ip_version_traffic_class_and_flow_label & 0xF0) ==
0x60);
- ih6 = vlib_buffer_push_ip6 (vm, b, &pkt_ih6->dst_address,
- &pkt_ih6->src_address, IP_PROTOCOL_TCP);
+ ih6 = vlib_buffer_push_ip6_custom (vm, b, &pkt_ih6->dst_address,
+ &pkt_ih6->src_address,
+ IP_PROTOCOL_TCP,
+ tc->ipv6_flow_label);
th->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ih6, &bogus);
ASSERT (!bogus);
}
@@ -909,8 +911,9 @@ tcp_push_ip_hdr (tcp_worker_ctx_t * wrk, tcp_connection_t * tc,
ip6_header_t *ih;
int bogus = ~0;
- ih = vlib_buffer_push_ip6 (vm, b, &tc->c_lcl_ip6,
- &tc->c_rmt_ip6, IP_PROTOCOL_TCP);
+ ih = vlib_buffer_push_ip6_custom (vm, b, &tc->c_lcl_ip6,
+ &tc->c_rmt_ip6, IP_PROTOCOL_TCP,
+ tc->ipv6_flow_label);
th->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ih, &bogus);
ASSERT (!bogus);
}
@@ -2278,8 +2281,9 @@ tcp_output_push_ip (vlib_main_t * vm, vlib_buffer_t * b0,
ih0 = vlib_buffer_push_ip4 (vm, b0, &tc0->c_lcl_ip4, &tc0->c_rmt_ip4,
IP_PROTOCOL_TCP, tcp_csum_offload (tc0));
else
- ih0 = vlib_buffer_push_ip6 (vm, b0, &tc0->c_lcl_ip6, &tc0->c_rmt_ip6,
- IP_PROTOCOL_TCP);
+ ih0 =
+ vlib_buffer_push_ip6_custom (vm, b0, &tc0->c_lcl_ip6, &tc0->c_rmt_ip6,
+ IP_PROTOCOL_TCP, tc0->ipv6_flow_label);
}