diff options
Diffstat (limited to 'sysdep')
| -rw-r--r-- | sysdep/bsd/krt-sock.Y | 10 | ||||
| -rw-r--r-- | sysdep/bsd/krt-sock.c | 39 | ||||
| -rw-r--r-- | sysdep/bsd/krt-sys.h | 2 |
3 files changed, 48 insertions, 3 deletions
diff --git a/sysdep/bsd/krt-sock.Y b/sysdep/bsd/krt-sock.Y index 8581bd43..a03d6df5 100644 --- a/sysdep/bsd/krt-sock.Y +++ b/sysdep/bsd/krt-sock.Y @@ -10,7 +10,7 @@ CF_HDR CF_DECLS -CF_KEYWORDS(KERNEL, TABLE) +CF_KEYWORDS(KERNEL, TABLE, METRIC) CF_GRAMMAR @@ -25,6 +25,14 @@ kern_sys_item: THIS_KRT->sys.table_id = $3; } + | METRIC expr { + if ($2 && !krt_max_metric) + cf_error("Kernel route metric not supported"); + if ($2 > krt_max_metric) + cf_error("Kernel table id must be in range 0-%u", krt_max_metric); + + THIS_KRT->sys.metric = $2; + } ; CF_CODE diff --git a/sysdep/bsd/krt-sock.c b/sysdep/bsd/krt-sock.c index 47f5cf59..540c246f 100644 --- a/sysdep/bsd/krt-sock.c +++ b/sysdep/bsd/krt-sock.c @@ -47,6 +47,11 @@ const int rt_default_ecmp = 0; * table_id is specified explicitly as sysctl scan argument, while in FreeBSD it * is handled implicitly by changing default table using setfib() syscall. * + * OpenBSD allows to use route metric. The behavior is controlled by these macro + * KRT_USE_METRIC, which enables use of rtm_priority in route send/recevive. + * There is also KRT_DEFAULT_METRIC and KRT_MAX_METRIC for default and maximum + * metric values. + * * KRT_SHARED_SOCKET - use shared kernel socked instead of one for each krt_proto * KRT_USE_SETFIB_SCAN - use setfib() for sysctl() route scan * KRT_USE_SETFIB_SOCK - use SO_SETFIB socket option for kernel sockets @@ -63,6 +68,9 @@ const int rt_default_ecmp = 0; #ifdef __OpenBSD__ #define KRT_MAX_TABLES (RT_TABLEID_MAX+1) +#define KRT_USE_METRIC +#define KRT_MAX_METRIC 255 +#define KRT_DEFAULT_METRIC 56 #define KRT_SHARED_SOCKET #define KRT_USE_SYSCTL_7 #endif @@ -71,6 +79,14 @@ const int rt_default_ecmp = 0; #define KRT_MAX_TABLES 1 #endif +#ifndef KRT_MAX_METRIC +#define KRT_MAX_METRIC 0 +#endif + +#ifndef KRT_DEFAULT_METRIC +#define KRT_DEFAULT_METRIC 0 +#endif + /* Dynamic max number of tables */ @@ -143,6 +159,10 @@ static struct krt_proto *krt_table_map[KRT_MAX_TABLES][2]; #endif +/* Make it available to parser code */ +const uint krt_max_metric = KRT_MAX_METRIC; + + /* Route socket message processing */ int @@ -231,6 +251,10 @@ krt_send_route(struct krt_proto *p, int cmd, rte *e) msg.rtm.rtm_tableid = KRT_CF->sys.table_id; #endif +#ifdef KRT_USE_METRIC + msg.rtm.rtm_priority = KRT_CF->sys.metric; +#endif + #ifdef RTF_REJECT if(a->dest == RTD_UNREACHABLE) msg.rtm.rtm_flags |= RTF_REJECT; @@ -586,7 +610,7 @@ krt_read_route(struct ks_msg *msg, struct krt_proto *p, int scan) e = rte_get_temp(&a, p->p.main_source); e->net = net; - ea_list *ea = alloca(sizeof(ea_list) + 1 * sizeof(eattr)); + ea_list *ea = alloca(sizeof(ea_list) + 2 * sizeof(eattr)); *ea = (ea_list) { .count = 1, .next = e->attrs->eattrs }; e->attrs->eattrs = ea; @@ -596,6 +620,15 @@ krt_read_route(struct ks_msg *msg, struct krt_proto *p, int scan) .u.data = src2, }; +#ifdef KRT_USE_METRIC + ea->count++; + ea->attrs[1] = (eattr) { + .id = EA_KRT_METRIC, + .type = EAF_TYPE_INT, + .u.data = msg->rtm.rtm_priority, + }; +#endif + if (scan) krt_got_route(p, e, src); else @@ -1155,7 +1188,7 @@ krt_sys_shutdown(struct krt_proto *p) int krt_sys_reconfigure(struct krt_proto *p UNUSED, struct krt_config *n, struct krt_config *o) { - return n->sys.table_id == o->sys.table_id; + return (n->sys.table_id == o->sys.table_id) && (n->sys.metric == o->sys.metric); } void @@ -1168,11 +1201,13 @@ krt_sys_preconfig(struct config *c UNUSED) void krt_sys_init_config(struct krt_config *c) { c->sys.table_id = 0; /* Default table */ + c->sys.metric = KRT_DEFAULT_METRIC; } void krt_sys_copy_config(struct krt_config *d, struct krt_config *s) { d->sys.table_id = s->sys.table_id; + d->sys.metric = s->sys.metric; } diff --git a/sysdep/bsd/krt-sys.h b/sysdep/bsd/krt-sys.h index 57501884..198373c0 100644 --- a/sysdep/bsd/krt-sys.h +++ b/sysdep/bsd/krt-sys.h @@ -32,9 +32,11 @@ static inline void kif_sys_copy_config(struct kif_config *d UNUSED, struct kif_c /* Kernel routes */ extern uint krt_max_tables; +extern const uint krt_max_metric; struct krt_params { int table_id; /* Kernel table ID we sync with */ + u32 metric; /* Kernel metric used for all routes */ }; struct krt_state { |