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bgpd: Update routemap example with new script call

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Signed-off-by: Donald Lee <dlqs@gmx.com>
This commit is contained in:
Donald Lee 2021-06-20 08:35:19 +08:00
parent 81fde499e5
commit fa2bb2e8d3
1 changed files with 10 additions and 41 deletions
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51
bgpd/bgp_routemap.c
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@ -29,6 +29,7 @@
#include "memory.h" #include "memory.h"
#include "log.h" #include "log.h"
#include "frrlua.h" #include "frrlua.h"
#include "frrscript.h"
#ifdef HAVE_LIBPCREPOSIX #ifdef HAVE_LIBPCREPOSIX
#include <pcreposix.h> #include <pcreposix.h>
#else #else
@ -373,42 +374,27 @@ route_match_script(void *rule, const struct prefix *prefix, void *object)
return RMAP_NOMATCH; return RMAP_NOMATCH;
} }
enum frrlua_rm_status status_failure = LUA_RM_FAILURE, enum frrlua_rm_status lrm_status = LUA_RM_FAILURE,
status_nomatch = LUA_RM_NOMATCH, status_nomatch = LUA_RM_NOMATCH,
status_match = LUA_RM_MATCH, status_match = LUA_RM_MATCH,
status_match_and_change = LUA_RM_MATCH_AND_CHANGE; status_match_and_change = LUA_RM_MATCH_AND_CHANGE;
/* Make result values available */ int result = frrscript_call(
struct frrscript_env env[] = { fs, ("RM_FAILURE", (long long *)&lrm_status),
{"integer", "RM_FAILURE", &status_failure}, ("RM_NOMATCH", (long long *)&status_nomatch),
{"integer", "RM_NOMATCH", &status_nomatch}, ("RM_MATCH", (long long *)&status_match),
{"integer", "RM_MATCH", &status_match}, ("RM_MATCH_AND_CHANGE", (long long *)&status_match_and_change),
{"integer", "RM_MATCH_AND_CHANGE", &status_match_and_change}, ("action", (long long *)&lrm_status), ("prefix", prefix),
{"integer", "action", &status_failure}, ("attributes", path->attr), ("peer", path->peer));
{"prefix", "prefix", prefix},
{"attr", "attributes", path->attr},
{"peer", "peer", path->peer},
{}};
struct frrscript_env results[] = {
{"integer", "action"},
{"attr", "attributes"},
{},
};
int result = frrscript_call(fs, env);
if (result) { if (result) {
zlog_err("Issue running script rule; defaulting to no match"); zlog_err("Issue running script rule; defaulting to no match");
return RMAP_NOMATCH; return RMAP_NOMATCH;
} }
enum frrlua_rm_status *lrm_status =
frrscript_get_result(fs, &results[0]);
int status = RMAP_NOMATCH; int status = RMAP_NOMATCH;
switch (*lrm_status) { switch (lrm_status) {
case LUA_RM_FAILURE: case LUA_RM_FAILURE:
zlog_err( zlog_err(
"Executing route-map match script '%s' failed; defaulting to no match", "Executing route-map match script '%s' failed; defaulting to no match",
@ -421,29 +407,12 @@ route_match_script(void *rule, const struct prefix *prefix, void *object)
case LUA_RM_MATCH_AND_CHANGE: case LUA_RM_MATCH_AND_CHANGE:
status = RMAP_MATCH; status = RMAP_MATCH;
zlog_debug("Updating attribute based on script's values"); zlog_debug("Updating attribute based on script's values");
uint32_t locpref = 0;
struct attr *newattr = frrscript_get_result(fs, &results[1]);
path->attr->med = newattr->med;
if (path->attr->flag & ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF))
locpref = path->attr->local_pref;
if (locpref != newattr->local_pref) {
SET_FLAG(path->attr->flag,
ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF));
path->attr->local_pref = newattr->local_pref;
}
aspath_free(newattr->aspath);
XFREE(MTYPE_TMP, newattr);
break; break;
case LUA_RM_MATCH: case LUA_RM_MATCH:
status = RMAP_MATCH; status = RMAP_MATCH;
break; break;
} }
XFREE(MTYPE_TMP, lrm_status);
frrscript_unload(fs); frrscript_unload(fs);
return status; return status;