diff options
| author | Alexander V. Chernikov <melifaro@FreeBSD.org> | 2024-11-12 23:36:50 +0000 |
|---|---|---|
| committer | Alexander V. Chernikov <melifaro@FreeBSD.org> | 2024-11-12 23:36:50 +0000 |
| commit | 1da4954c92ea7585b352ba830d3ee64ca69ada52 (patch) | |
| tree | 0d0c3fee455d38178c3e07e92042580c9b20cb44 | |
| parent | ac5e30a8073f95a4764c939cde29adae51229bdd (diff) | |
Fix failure to add an interface prefix route when route with the same
prefix is already presented in the routing table.
PR: 277125
Reported by: Oleksandr Ignatyev <alex@i.org.ua>
Reviewed by: ae, jlduran
Tested by: jlduran
Differential Revision: https://reviews.freebsd.org/D47534
MFC after: 2 weeks
| -rw-r--r-- | sys/net/route/route_ctl.c | 13 | ||||
| -rw-r--r-- | sys/net/route/route_ctl.h | 10 |
2 files changed, 13 insertions, 10 deletions
diff --git a/sys/net/route/route_ctl.c b/sys/net/route/route_ctl.c index a07a58737c1c..d7756f2a0eb6 100644 --- a/sys/net/route/route_ctl.c +++ b/sys/net/route/route_ctl.c @@ -772,12 +772,15 @@ add_route_byinfo(struct rib_head *rnh, struct rt_addrinfo *info, rnd_add.rnd_weight = get_info_weight(info, RT_DEFAULT_WEIGHT); int op_flags = RTM_F_CREATE; - if (get_prio_from_info(info) == NH_PRIORITY_HIGH) - op_flags |= RTM_F_FORCE; - else - op_flags |= RTM_F_APPEND; - return (add_route_flags(rnh, rt, &rnd_add, op_flags, rc)); + /* + * Set the desired action when the route already exists: + * If RTF_PINNED is present, assume the direct kernel routes that cannot be multipath. + * Otherwise, append the path. + */ + op_flags |= (info->rti_flags & RTF_PINNED) ? RTM_F_REPLACE : RTM_F_APPEND; + + return (add_route_flags(rnh, rt, &rnd_add, op_flags, rc)); } static int diff --git a/sys/net/route/route_ctl.h b/sys/net/route/route_ctl.h index 140f14aa9e4f..845df8ce1fbe 100644 --- a/sys/net/route/route_ctl.h +++ b/sys/net/route/route_ctl.h @@ -61,11 +61,11 @@ int rib_del_route_px_gw(uint32_t fibnum, struct sockaddr *dst, int plen, const struct sockaddr *gw, int op_flags, struct rib_cmd_info *rc); /* operation flags */ -#define RTM_F_CREATE 0x01 -#define RTM_F_EXCL 0x02 -#define RTM_F_REPLACE 0x04 -#define RTM_F_APPEND 0x08 -#define RTM_F_FORCE 0x10 +#define RTM_F_CREATE 0x01 /* Create object if not exists */ +#define RTM_F_EXCL 0x02 /* (Deprecated) Do not replace or append if exists */ +#define RTM_F_REPLACE 0x04 /* Replace if route (even multipath) if exists */ +#define RTM_F_APPEND 0x08 /* Append path to the route */ +#define RTM_F_FORCE 0x10 /* Bump operation priority to highest */ int rib_add_route(uint32_t fibnum, struct rt_addrinfo *info, struct rib_cmd_info *rc); |