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Merge pull request #1462 from donaldsharp/as_path_stuff

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Json Stuff
This commit is contained in:
Lou Berger 2017-11-21 20:41:39 +08:00 committed by GitHub
commit 02b5275b17
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 108 additions and 67 deletions
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80
bgpd/bgp_aspath.c
View File

@ -479,7 +479,7 @@ unsigned int aspath_has_as4(struct aspath *aspath)
}
/* Convert aspath structure to string expression. */
static void aspath_make_str_count(struct aspath *as)
static void aspath_make_str_count(struct aspath *as, bool make_json)
{
struct assegment *seg;
int str_size;
@ -489,14 +489,18 @@ static void aspath_make_str_count(struct aspath *as)
json_object *jseg = NULL;
json_object *jseg_list = NULL;
as->json = json_object_new_object();
jaspath_segments = json_object_new_array();
if (make_json) {
as->json = json_object_new_object();
jaspath_segments = json_object_new_array();
}
/* Empty aspath. */
if (!as->segments) {
json_object_string_add(as->json, "string", "Local");
json_object_object_add(as->json, "segments", jaspath_segments);
json_object_int_add(as->json, "length", 0);
if (make_json) {
json_object_string_add(as->json, "string", "Local");
json_object_object_add(as->json, "segments", jaspath_segments);
json_object_int_add(as->json, "length", 0);
}
as->str = XMALLOC(MTYPE_AS_STR, 1);
as->str[0] = '\0';
as->str_len = 0;
@ -539,6 +543,7 @@ static void aspath_make_str_count(struct aspath *as)
as->str_len = 0;
json_object_free(as->json);
as->json = NULL;
return;
}
@ -564,12 +569,14 @@ static void aspath_make_str_count(struct aspath *as)
str_buf + len, str_size - len, "%c",
aspath_delimiter_char(seg->type, AS_SEG_START));
jseg_list = json_object_new_array();
if (make_json)
jseg_list = json_object_new_array();
/* write out the ASNs, with their seperators, bar the last one*/
for (i = 0; i < seg->length; i++) {
json_object_array_add(jseg_list,
json_object_new_int(seg->as[i]));
if (make_json)
json_object_array_add(jseg_list,
json_object_new_int(seg->as[i]));
len += snprintf(str_buf + len, str_size - len, "%u",
seg->as[i]);
@ -579,11 +586,13 @@ static void aspath_make_str_count(struct aspath *as)
"%c", seperator);
}
jseg = json_object_new_object();
json_object_string_add(jseg, "type",
aspath_segment_type_str[seg->type]);
json_object_object_add(jseg, "list", jseg_list);
json_object_array_add(jaspath_segments, jseg);
if (make_json) {
jseg = json_object_new_object();
json_object_string_add(jseg, "type",
aspath_segment_type_str[seg->type]);
json_object_object_add(jseg, "list", jseg_list);
json_object_array_add(jaspath_segments, jseg);
}
if (seg->type != AS_SEQUENCE)
len += snprintf(
@ -601,13 +610,16 @@ static void aspath_make_str_count(struct aspath *as)
as->str = str_buf;
as->str_len = len;
json_object_string_add(as->json, "string", str_buf);
json_object_object_add(as->json, "segments", jaspath_segments);
json_object_int_add(as->json, "length", aspath_count_hops(as));
if (make_json) {
json_object_string_add(as->json, "string", str_buf);
json_object_object_add(as->json, "segments", jaspath_segments);
json_object_int_add(as->json, "length", aspath_count_hops(as));
}
return;
}
static void aspath_str_update(struct aspath *as)
void aspath_str_update(struct aspath *as, bool make_json)
{
if (as->str)
XFREE(MTYPE_AS_STR, as->str);
@ -617,7 +629,7 @@ static void aspath_str_update(struct aspath *as)
as->json = NULL;
}
aspath_make_str_count(as);
aspath_make_str_count(as, make_json);
}
/* Intern allocated AS path. */
@ -1079,7 +1091,7 @@ struct aspath *aspath_aggregate(struct aspath *as1, struct aspath *as2)
}
assegment_normalise(aspath->segments);
aspath_str_update(aspath);
aspath_str_update(aspath, false);
return aspath;
}
@ -1214,7 +1226,7 @@ struct aspath *aspath_replace_specific_asn(struct aspath *aspath,
seg = seg->next;
}
aspath_str_update(new);
aspath_str_update(new, false);
return new;
}
@ -1237,7 +1249,7 @@ struct aspath *aspath_replace_private_asns(struct aspath *aspath, as_t asn)
seg = seg->next;
}
aspath_str_update(new);
aspath_str_update(new, false);
return new;
}
@ -1307,7 +1319,7 @@ struct aspath *aspath_remove_private_asns(struct aspath *aspath)
seg = seg->next;
}
aspath_str_update(new);
aspath_str_update(new, false);
return new;
}
@ -1362,7 +1374,7 @@ static struct aspath *aspath_merge(struct aspath *as1, struct aspath *as2)
last->next = as2->segments;
as2->segments = new;
aspath_str_update(as2);
aspath_str_update(as2, false);
return as2;
}
@ -1381,7 +1393,7 @@ struct aspath *aspath_prepend(struct aspath *as1, struct aspath *as2)
/* If as2 is empty, only need to dupe as1's chain onto as2 */
if (seg2 == NULL) {
as2->segments = assegment_dup_all(as1->segments);
aspath_str_update(as2);
aspath_str_update(as2, false);
return as2;
}
@ -1432,7 +1444,7 @@ struct aspath *aspath_prepend(struct aspath *as1, struct aspath *as2)
/* we've now prepended as1's segment chain to as2, merging
* the inbetween AS_SEQUENCE of seg2 in the process
*/
aspath_str_update(as2);
aspath_str_update(as2, false);
return as2;
} else {
/* AS_SET merge code is needed at here. */
@ -1511,7 +1523,7 @@ struct aspath *aspath_filter_exclude(struct aspath *source,
lastseg->next = newseg;
lastseg = newseg;
}
aspath_str_update(newpath);
aspath_str_update(newpath, false);
/* We are happy returning even an empty AS_PATH, because the
* administrator
* might expect this very behaviour. There's a mean to avoid this, if
@ -1549,7 +1561,7 @@ static struct aspath *aspath_add_asns(struct aspath *aspath, as_t asno,
aspath->segments = newsegment;
}
aspath_str_update(aspath);
aspath_str_update(aspath, false);
return aspath;
}
@ -1639,7 +1651,7 @@ struct aspath *aspath_reconcile_as4(struct aspath *aspath,
if (!hops) {
newpath = aspath_dup(as4path);
aspath_str_update(newpath);
aspath_str_update(newpath, false);
return newpath;
}
@ -1701,7 +1713,7 @@ struct aspath *aspath_reconcile_as4(struct aspath *aspath,
mergedpath = aspath_merge(newpath, aspath_dup(as4path));
aspath_free(newpath);
mergedpath->segments = assegment_normalise(mergedpath->segments);
aspath_str_update(mergedpath);
aspath_str_update(mergedpath, false);
if (BGP_DEBUG(as4, AS4))
zlog_debug("[AS4] result of synthesizing is %s",
@ -1773,7 +1785,7 @@ struct aspath *aspath_delete_confed_seq(struct aspath *aspath)
}
if (removed_confed_segment)
aspath_str_update(aspath);
aspath_str_update(aspath, false);
return aspath;
}
@ -1824,7 +1836,7 @@ struct aspath *aspath_empty_get(void)
struct aspath *aspath;
aspath = aspath_new();
aspath_make_str_count(aspath);
aspath_make_str_count(aspath, false);
return aspath;
}
@ -1975,7 +1987,7 @@ struct aspath *aspath_str2aspath(const char *str)
}
}
aspath_make_str_count(aspath);
aspath_make_str_count(aspath, false);
return aspath;
}
@ -1987,7 +1999,7 @@ unsigned int aspath_key_make(void *p)
unsigned int key = 0;
if (!aspath->str)
aspath_str_update(aspath);
aspath_str_update(aspath, false);
key = jhash(aspath->str, aspath->str_len, 2334325);

1
bgpd/bgp_aspath.h
View File

@ -92,6 +92,7 @@ extern struct aspath *aspath_delete_confed_seq(struct aspath *);
extern struct aspath *aspath_empty(void);
extern struct aspath *aspath_empty_get(void);
extern struct aspath *aspath_str2aspath(const char *);
extern void aspath_str_update(struct aspath *as, bool make_json);
extern void aspath_free(struct aspath *);
extern struct aspath *aspath_intern(struct aspath *);
extern void aspath_unintern(struct aspath **);

2
bgpd/bgp_clist.c
View File

@ -438,7 +438,7 @@ static int community_regexp_match(struct community *com, regex_t *reg)
if (com == NULL || com->size == 0)
str = "";
else
str = community_str(com);
str = community_str(com, false);
/* Regular expression match. */
if (regexec(reg, str, 0, NULL, 0) == 0)

66
bgpd/bgp_community.c
View File

@ -169,7 +169,6 @@ struct community *community_uniq_sort(struct community *com)
return NULL;
new = community_new();
;
new->json = NULL;
for (i = 0; i < com->size; i++) {
@ -195,7 +194,7 @@ struct community *community_uniq_sort(struct community *com)
0xFFFF0000 "graceful-shutdown"
For other values, "AS:VAL" format is used. */
static void set_community_string(struct community *com)
static void set_community_string(struct community *com, bool make_json)
{
int i;
char *str;
@ -211,16 +210,20 @@ static void set_community_string(struct community *com)
if (!com)
return;
com->json = json_object_new_object();
json_community_list = json_object_new_array();
if (make_json) {
com->json = json_object_new_object();
json_community_list = json_object_new_array();
}
/* When communities attribute is empty. */
if (com->size == 0) {
str = XMALLOC(MTYPE_COMMUNITY_STR, 1);
str[0] = '\0';
json_object_string_add(com->json, "string", "");
json_object_object_add(com->json, "list", json_community_list);
if (make_json) {
json_object_string_add(com->json, "string", "");
json_object_object_add(com->json, "list", json_community_list);
}
com->str = str;
return;
}
@ -273,47 +276,61 @@ static void set_community_string(struct community *com)
case COMMUNITY_INTERNET:
strcpy(pnt, "internet");
pnt += strlen("internet");
json_string = json_object_new_string("internet");
json_object_array_add(json_community_list, json_string);
if (make_json) {
json_string = json_object_new_string("internet");
json_object_array_add(json_community_list, json_string);
}
break;
case COMMUNITY_NO_EXPORT:
strcpy(pnt, "no-export");
pnt += strlen("no-export");
json_string = json_object_new_string("noExport");
json_object_array_add(json_community_list, json_string);
if (make_json) {
json_string = json_object_new_string("noExport");
json_object_array_add(json_community_list, json_string);
}
break;
case COMMUNITY_NO_ADVERTISE:
strcpy(pnt, "no-advertise");
pnt += strlen("no-advertise");
json_string = json_object_new_string("noAdvertise");
json_object_array_add(json_community_list, json_string);
if (make_json) {
json_string = json_object_new_string("noAdvertise");
json_object_array_add(json_community_list, json_string);
}
break;
case COMMUNITY_LOCAL_AS:
strcpy(pnt, "local-AS");
pnt += strlen("local-AS");
json_string = json_object_new_string("localAs");
json_object_array_add(json_community_list, json_string);
if (make_json) {
json_string = json_object_new_string("localAs");
json_object_array_add(json_community_list, json_string);
}
break;
case COMMUNITY_GSHUT:
strcpy(pnt, "graceful-shutdown");
pnt += strlen("graceful-shutdown");
json_string = json_object_new_string("gracefulShutdown");
json_object_array_add(json_community_list, json_string);
if (make_json) {
json_string = json_object_new_string("gracefulShutdown");
json_object_array_add(json_community_list, json_string);
}
break;
default:
as = (comval >> 16) & 0xFFFF;
val = comval & 0xFFFF;
sprintf(pnt, "%u:%d", as, val);
json_string = json_object_new_string(pnt);
json_object_array_add(json_community_list, json_string);
if (make_json) {
json_string = json_object_new_string(pnt);
json_object_array_add(json_community_list, json_string);
}
pnt += strlen(pnt);
break;
}
}
*pnt = '\0';
json_object_string_add(com->json, "string", str);
json_object_object_add(com->json, "list", json_community_list);
if (make_json) {
json_object_string_add(com->json, "string", str);
json_object_object_add(com->json, "list", json_community_list);
}
com->str = str;
}
@ -338,7 +355,7 @@ struct community *community_intern(struct community *com)
/* Make string. */
if (!find->str)
set_community_string(find);
set_community_string(find, false);
return find;
}
@ -396,13 +413,16 @@ struct community *community_dup(struct community *com)
}
/* Retrun string representation of communities attribute. */
char *community_str(struct community *com)
char *community_str(struct community *com, bool make_json)
{
if (!com)
return NULL;
if (make_json && !com->json && com->str)
XFREE(MTYPE_COMMUNITY_STR, com->str);
if (!com->str)
set_community_string(com);
set_community_string(com, make_json);
return com->str;
}

2
bgpd/bgp_community.h
View File

@ -63,7 +63,7 @@ extern struct community *community_uniq_sort(struct community *);
extern struct community *community_parse(u_int32_t *, u_short);
extern struct community *community_intern(struct community *);
extern void community_unintern(struct community **);
extern char *community_str(struct community *);
extern char *community_str(struct community *, bool make_json);
extern unsigned int community_hash_make(struct community *);
extern struct community *community_str2com(const char *);
extern int community_match(const struct community *, const struct community *);

3
bgpd/bgp_debug.c
View File

@ -385,7 +385,8 @@ int bgp_dump_attr(struct attr *attr, char *buf, size_t size)
if (CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES)))
snprintf(buf + strlen(buf), size - strlen(buf),
", community %s", community_str(attr->community));
", community %s", community_str(attr->community,
false));
if (CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES)))
snprintf(buf + strlen(buf), size - strlen(buf),

13
bgpd/bgp_route.c
View File

@ -7395,6 +7395,8 @@ void route_vty_out_detail(struct vty *vty, struct bgp *bgp, struct prefix *p,
/* Line1 display AS-path, Aggregator */
if (attr->aspath) {
if (json_paths) {
if (!attr->aspath->json)
aspath_str_update(attr->aspath, true);
json_object_lock(attr->aspath->json);
json_object_object_add(json_path, "aspath",
attr->aspath->json);
@ -7883,6 +7885,9 @@ void route_vty_out_detail(struct vty *vty, struct bgp *bgp, struct prefix *p,
/* Line 4 display Community */
if (attr->community) {
if (json_paths) {
if (!attr->community->json)
community_str(attr->community,
true);
json_object_lock(attr->community->json);
json_object_object_add(json_path, "community",
attr->community->json);
@ -8182,8 +8187,6 @@ static int bgp_show_table(struct vty *vty, struct bgp *bgp, safi_t safi,
continue;
display = 0;
if (!first && use_json)
vty_out(vty, ",");
if (use_json)
json_paths = json_object_new_array();
else
@ -8379,7 +8382,11 @@ static int bgp_show_table(struct vty *vty, struct bgp *bgp, safi_t safi,
inet_ntop(p->family, &p->u.prefix,
buf, BUFSIZ),
p->prefixlen);
vty_out(vty, "\"%s\": ", buf2);
if (first)
vty_out(vty, "\"%s\": ", buf2);
else
vty_out(vty, ",\"%s\": ", buf2);
vty_out(vty, "%s",
json_object_to_json_string_ext(json_paths, JSON_C_TO_STRING_PRETTY));
json_object_free(json_paths);

2
bgpd/bgp_routemap.c
View File

@ -3813,7 +3813,7 @@ DEFUN (set_community,
}
/* Set communites attribute string. */
str = community_str(com);
str = community_str(com, false);
if (additive) {
argstr = XCALLOC(MTYPE_TMP,

6
bgpd/bgp_vty.c
View File

@ -10010,7 +10010,7 @@ static void community_show_all_iterator(struct hash_backet *backet,
com = (struct community *)backet->data;
vty_out(vty, "[%p] (%ld) %s\n", (void *)com, com->refcnt,
community_str(com));
community_str(com, false));
}
/* Show BGP's community internal data. */
@ -12698,7 +12698,7 @@ static void community_list_show(struct vty *vty, struct community_list *list)
vty_out(vty, " %s %s\n",
community_direct_str(entry->direct),
entry->style == COMMUNITY_LIST_STANDARD
? community_str(entry->u.com)
? community_str(entry->u.com, false)
: entry->config);
}
}
@ -13354,7 +13354,7 @@ static const char *community_list_config_str(struct community_entry *entry)
str = "";
else {
if (entry->style == COMMUNITY_LIST_STANDARD)
str = community_str(entry->u.com);
str = community_str(entry->u.com, false);
else
str = entry->config;
}