diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/net/route.h | 5 | ||||
| -rw-r--r-- | sys/net/rtsock.c | 22 |
2 files changed, 24 insertions, 3 deletions
diff --git a/sys/net/route.h b/sys/net/route.h index 1ca0a22c45f..9f5459a9a62 100644 --- a/sys/net/route.h +++ b/sys/net/route.h @@ -1,4 +1,4 @@ -/* $OpenBSD: route.h,v 1.167 2017/08/02 08:38:28 mpi Exp $ */ +/* $OpenBSD: route.h,v 1.168 2018/02/11 02:26:55 benno Exp $ */ /* $NetBSD: route.h,v 1.9 1996/02/13 22:00:49 christos Exp $ */ /* @@ -297,6 +297,9 @@ struct rt_msghdr { sent to the client. */ #define ROUTE_TABLEFILTER 2 /* change routing table the socket is listening on, RTABLE_ANY listens on all tables. */ +#define ROUTE_PRIOFILTER 3 /* only pass updates with a priority higher or + equal (actual value lower) to the specified + priority. */ #define ROUTE_FILTER(m) (1 << (m)) #define RTABLE_ANY 0xffffffff diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index 35bdd09d143..70497d29a93 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rtsock.c,v 1.260 2018/02/08 22:24:41 claudio Exp $ */ +/* $OpenBSD: rtsock.c,v 1.261 2018/02/11 02:26:55 benno Exp $ */ /* $NetBSD: rtsock.c,v 1.18 1996/03/29 00:32:10 cgd Exp $ */ /* @@ -141,6 +141,7 @@ struct routecb { unsigned int msgfilter; unsigned int flags; u_int rtableid; + u_char priority; }; #define sotoroutecb(so) ((struct routecb *)(so)->so_pcb) @@ -308,7 +309,7 @@ route_ctloutput(int op, struct socket *so, int level, int optname, { struct routecb *rop = sotoroutecb(so); int error = 0; - unsigned int tid; + unsigned int tid, prio; if (level != AF_ROUTE) return (EINVAL); @@ -333,6 +334,17 @@ route_ctloutput(int op, struct socket *so, int level, int optname, else rop->rtableid = tid; break; + case ROUTE_PRIOFILTER: + if (m == NULL || m->m_len != sizeof(unsigned int)) { + error = EINVAL; + break; + } + prio = *mtod(m, unsigned int *); + if (prio > RTP_MAX) + error = EINVAL; + else + rop->priority = prio; + break; default: error = ENOPROTOOPT; break; @@ -348,6 +360,10 @@ route_ctloutput(int op, struct socket *so, int level, int optname, m->m_len = sizeof(unsigned int); *mtod(m, unsigned int *) = rop->rtableid; break; + case ROUTE_PRIOFILTER: + m->m_len = sizeof(unsigned int); + *mtod(m, unsigned int *) = rop->priority; + break; default: error = ENOPROTOOPT; break; @@ -431,6 +447,8 @@ route_input(struct mbuf *m0, struct socket *so, sa_family_t sa_family) if (rtm->rtm_type != RTM_DESYNC && rop->msgfilter != 0 && !(rop->msgfilter & (1 << rtm->rtm_type))) continue; + if (rop->priority != 0 && rop->priority < rtm->rtm_priority) + continue; switch (rtm->rtm_type) { case RTM_IFANNOUNCE: case RTM_DESYNC: |