diff options
| -rw-r--r-- | doc/bird.sgml | 2 | ||||
| -rw-r--r-- | filter/config.Y | 1 | ||||
| -rw-r--r-- | filter/filter.c | 23 |
3 files changed, 23 insertions, 3 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 6bf443e1..7db9fad2 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -1169,7 +1169,7 @@ undefined value is regarded as empty clist for most purposes. Preference of the route. Valid values are 0-65535. (See the chapter about routing tables.) <tag><m/ip/ from</tag> - The router which the route has originated from. Read-only. + The router which the route has originated from. <tag><m/ip/ gw</tag> Next hop packets routed using this route should be forwarded to. diff --git a/filter/config.Y b/filter/config.Y index 7f73b895..66234050 100644 --- a/filter/config.Y +++ b/filter/config.Y @@ -681,7 +681,6 @@ symbol: static_attr: FROM { $$ = f_new_inst(); $$->aux = T_IP; $$->a2.i = OFFSETOF(struct rta, from); $$->a1.i = 1; } - | GW { $$ = f_new_inst(); $$->aux = T_IP; $$->a2.i = OFFSETOF(struct rta, gw); $$->a1.i = 1; } | NET { $$ = f_new_inst(); $$->aux = T_PREFIX; $$->a2.i = 0x12345678; /* This is actually ok - T_PREFIX is special-cased. */ } | PROTO { $$ = f_new_inst(); $$->aux = T_STRING; $$->a2.i = 0x12345678; /* T_STRING is also special-cased. */ } diff --git a/filter/filter.c b/filter/filter.c index d784c253..98bae331 100644 --- a/filter/filter.c +++ b/filter/filter.c @@ -853,10 +853,29 @@ interpret(struct f_inst *what) f_rta_cow(); { struct rta *rta = (*f_rte)->attrs; + ip_addr ip; + switch (what->aux) { case T_IP: - * (ip_addr *) ((char *) rta + what->a2.i) = v1.val.px.ip; + ip = v1.val.px.ip; + + /* "gw" attribute? */ + if (what->a2.i == OFFSETOF(struct rta, gw)) + { + neighbor *n = neigh_find(rta->proto, &ip, 0); + if (!n || (n->scope == SCOPE_HOST)) + runtime( "Invalid gw address" ); + + rta->dest = RTD_ROUTER; + rta->gw = ip; + rta->iface = n->iface; + rta->nexthops = NULL; + rta->hostentry = NULL; + } + else /* or "from" attribute? */ + rta->from = ip; + break; case T_ENUM_SCOPE: @@ -867,10 +886,12 @@ interpret(struct f_inst *what) i = v1.val.i; if ((i != RTD_BLACKHOLE) && (i != RTD_UNREACHABLE) && (i != RTD_PROHIBIT)) runtime( "Destination can be changed only to blackhole, unreachable or prohibit" ); + rta->dest = i; rta->gw = IPA_NONE; rta->iface = NULL; rta->nexthops = NULL; + rta->hostentry = NULL; break; default: |