Allows some modifications of dest attribute in filters.
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bf42207332
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182a78957d
3 changed files with 27 additions and 5 deletions
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@ -1072,7 +1072,16 @@ undefined value is regarded as empty clist for most purposes.
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routes). Read-only.
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routes). Read-only.
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<tag><m/enum/ dest</tag>
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<tag><m/enum/ dest</tag>
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Type of destination the packets should be sent to (<cf/RTD_ROUTER/ for forwarding to a neighboring router, <cf/RTD_DEVICE/ for routing to a directly-connected network, <cf/RTD_BLACKHOLE/ for packets to be silently discarded, <cf/RTD_UNREACHABLE/, <cf/RTD_PROHIBIT/ for packets that should be returned with ICMP host unreachable / ICMP administratively prohibited messages). Read-only.
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Type of destination the packets should be sent to
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(<cf/RTD_ROUTER/ for forwarding to a neighboring router,
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<cf/RTD_DEVICE/ for routing to a directly-connected network,
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<cf/RTD_MULTIPATH/ for multipath destinations,
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<cf/RTD_BLACKHOLE/ for packets to be silently discarded,
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<cf/RTD_UNREACHABLE/, <cf/RTD_PROHIBIT/ for packets that
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should be returned with ICMP host unreachable / ICMP
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administratively prohibited messages). Can be changed, but
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only to <cf/RTD_BLACKHOLE/, <cf/RTD_UNREACHABLE/ or
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<cf/RTD_PROHIBIT/.
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<tag><m/int/ igp_metric</tag>
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<tag><m/int/ igp_metric</tag>
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The optional attribute that can be used to specify a distance
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The optional attribute that can be used to specify a distance
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@ -703,7 +703,7 @@ static_attr:
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| SOURCE { $$ = f_new_inst(); $$->aux = T_ENUM_RTS; $$->a2.i = OFFSETOF(struct rta, source); }
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| SOURCE { $$ = f_new_inst(); $$->aux = T_ENUM_RTS; $$->a2.i = OFFSETOF(struct rta, source); }
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| SCOPE { $$ = f_new_inst(); $$->aux = T_ENUM_SCOPE; $$->a2.i = OFFSETOF(struct rta, scope); $$->a1.i = 1; }
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| SCOPE { $$ = f_new_inst(); $$->aux = T_ENUM_SCOPE; $$->a2.i = OFFSETOF(struct rta, scope); $$->a1.i = 1; }
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| CAST { $$ = f_new_inst(); $$->aux = T_ENUM_RTC; $$->a2.i = OFFSETOF(struct rta, cast); }
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| CAST { $$ = f_new_inst(); $$->aux = T_ENUM_RTC; $$->a2.i = OFFSETOF(struct rta, cast); }
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| DEST { $$ = f_new_inst(); $$->aux = T_ENUM_RTD; $$->a2.i = OFFSETOF(struct rta, dest); }
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| DEST { $$ = f_new_inst(); $$->aux = T_ENUM_RTD; $$->a2.i = OFFSETOF(struct rta, dest); $$->a1.i = 1; }
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;
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;
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term:
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term:
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@ -852,12 +852,25 @@ interpret(struct f_inst *what)
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{
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{
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struct rta *rta = (*f_rte)->attrs;
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struct rta *rta = (*f_rte)->attrs;
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switch (what->aux) {
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switch (what->aux) {
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case T_ENUM:
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* ((char *) rta + what->a2.i) = v1.val.i;
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break;
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case T_IP:
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case T_IP:
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* (ip_addr *) ((char *) rta + what->a2.i) = v1.val.px.ip;
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* (ip_addr *) ((char *) rta + what->a2.i) = v1.val.px.ip;
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break;
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break;
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case T_ENUM_SCOPE:
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rta->scope = v1.val.i;
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break;
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case T_ENUM_RTD:
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i = v1.val.i;
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if ((i != RTD_BLACKHOLE) && (i != RTD_UNREACHABLE) && (i != RTD_PROHIBIT))
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runtime( "Destination can be changed only to blackhole, unreachable or prohibit" );
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rta->dest = i;
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rta->gw = IPA_NONE;
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rta->iface = NULL;
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rta->nexthops = NULL;
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break;
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default:
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default:
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bug( "Unknown type in set of static attribute" );
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bug( "Unknown type in set of static attribute" );
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}
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}
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