From b069b5680dd738757a81e6b0d5854a27d58a63a8 Mon Sep 17 00:00:00 2001 From: Adriano Marto Reis Date: Sun, 21 Mar 2021 09:25:13 +1000 Subject: [PATCH] pimd: marking MSDP traffic as DSCP CS6 Configuring the sockets used to establish MSDP connections so the packets are marked as CS6 Signed-off-by: Adriano Marto Reis --- pimd/pim_msdp_socket.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/pimd/pim_msdp_socket.c b/pimd/pim_msdp_socket.c index b613937f59..9c3cdb2711 100644 --- a/pimd/pim_msdp_socket.c +++ b/pimd/pim_msdp_socket.c @@ -35,6 +35,8 @@ #include "pim_msdp.h" #include "pim_msdp_socket.h" +#include "sockopt.h" + /* increase socket send buffer size */ static void pim_msdp_update_sock_send_buffer_size(int fd) { @@ -194,6 +196,12 @@ int pim_msdp_sock_listen(struct pim_instance *pim) return rc; } + /* Set socket DSCP byte */ + if (setsockopt_ipv4_tos(sock, IPTOS_PREC_INTERNETCONTROL)) { + zlog_warn("can't set sockopt IP_TOS to MSDP socket %d: %s", + sock, safe_strerror(errno)); + } + /* add accept thread */ listener->fd = sock; memcpy(&listener->su, &sin, socklen); @@ -272,6 +280,12 @@ int pim_msdp_sock_connect(struct pim_msdp_peer *mp) return rc; } + /* Set socket DSCP byte */ + if (setsockopt_ipv4_tos(mp->fd, IPTOS_PREC_INTERNETCONTROL)) { + zlog_warn("can't set sockopt IP_TOS to MSDP socket %d: %s", + mp->fd, safe_strerror(errno)); + } + /* Connect to the remote mp. */ return (sockunion_connect(mp->fd, &mp->su_peer, htons(PIM_MSDP_TCP_PORT), 0)); -- 2.39.5