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Add support for Nokia SR Linux IP prefix lists / ACL filters (#91)

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* Add support for Nokia SR Linux prefix sets

* Update tests

* Update docs

* Fix ACL prefix filter
This commit is contained in:
J vanBemmel
2023-05-25 11:47:09 -05:00
committed by GitHub
parent 3c201684b6
commit aee7adb698
7 changed files with 137 additions and 5 deletions
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106
printer.c
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@@ -40,6 +40,13 @@
extern int debug_expander;
#define max(a,b) \
({ \
__typeof__ (a) _a = (a); \
__typeof__ (b) _b = (b); \
_a > _b ? _a : _b; \
})
static void
bgpq4_print_cisco_aspath(FILE *f, struct bgpq_expander *b)
{
@@ -1370,6 +1377,60 @@ checkSon:
}
static void
bgpq4_print_nokia_srl_prefix(struct sx_radix_node *n, void *ff)
{
char prefix[128];
FILE *f = (FILE*)ff;
if (n->isGlue)
goto checkSon;
if (!f)
f = stdout;
sx_prefix_snprintf(n->prefix, prefix, sizeof(prefix));
if (!n->isAggregate) {
fprintf(f, " prefix %s mask-length-range exact { }\n", prefix);
} else {
fprintf(f, " prefix %s mask-length-range %u..%u { }\n", prefix,
max(n->aggregateLow,n->prefix->masklen), n->aggregateHi);
}
checkSon:
if (n->son)
bgpq4_print_nokia_srl_prefix(n->son, ff);
}
typedef struct {
FILE *f;
int seq;
} NOKIA_SRL_IPFILTER_PARAMS;
static void
bgpq4_print_nokia_srl_ipfilter(struct sx_radix_node *n, void *ff)
{
char prefix[128];
NOKIA_SRL_IPFILTER_PARAMS *params = (NOKIA_SRL_IPFILTER_PARAMS*) ff;
if (n->isGlue)
goto checkSon;
if (!params->f)
params->f = stdout;
sx_prefix_snprintf(n->prefix, prefix, sizeof(prefix));
fprintf(params->f, " entry %d {\n action { accept { } }\n match { source-ip { prefix %s } } }\n", params->seq, prefix);
params->seq += 10;
checkSon:
if (n->son) {
bgpq4_print_nokia_srl_ipfilter(n->son, ff);
}
}
static void
bgpq4_print_juniper_prefixlist(FILE *f, struct bgpq_expander *b)
{
@@ -1716,6 +1777,45 @@ bgpq4_print_nokia_md_ipprefixlist(FILE *f, struct bgpq_expander *b)
fprintf(f,"}\n");
}
static void
bgpq4_print_nokia_srl_prefixset(FILE *f, struct bgpq_expander *b)
{
bname = b->name ? b->name : "NN";
fprintf(f, "/routing-policy\ndelete prefix-set \"%s\"\n",
bname);
fprintf(f, "prefix-set \"%s\" {\n", bname);
if (!sx_radix_tree_empty(b->tree)) {
sx_radix_tree_foreach(b->tree, bgpq4_print_nokia_srl_prefix, f);
}
fprintf(f,"}\n");
}
static void
bgpq4_print_nokia_srl_aclipfilter(FILE *f, struct bgpq_expander *b)
{
bname = b->name ? b->name : "NN";
fprintf(f,"/acl \ndelete ipv%c-filter \"%s\"\n",
b->tree->family == AF_INET ? '4' : '6', bname);
fprintf(f,"ipv%c-filter \"%s\" {\n",
b->tree->family == AF_INET ? '4' : '6', bname);
if (!sx_radix_tree_empty(b->tree)) {
NOKIA_SRL_IPFILTER_PARAMS params = { f, 10 };
sx_radix_tree_foreach(b->tree, bgpq4_print_nokia_srl_ipfilter, &params);
} else {
fprintf(f,"# generated ipv%c-filter '%s' is empty\n",
b->tree->family == AF_INET ? '4' : '6', bname);
}
fprintf(f,"}\n");
}
static void
bgpq4_print_k6prefix(struct sx_radix_node *n, void *ff)
{
@@ -1827,6 +1927,9 @@ bgpq4_print_prefixlist(FILE *f, struct bgpq_expander *b)
case V_NOKIA_MD:
bgpq4_print_nokia_md_ipprefixlist(f, b);
break;
case V_NOKIA_SRL:
bgpq4_print_nokia_srl_prefixset(f, b);
break;
case V_HUAWEI:
bgpq4_print_huawei_prefixlist(f, b);
break;
@@ -1863,6 +1966,9 @@ bgpq4_print_eacl(FILE *f, struct bgpq_expander *b)
case V_NOKIA_MD:
bgpq4_print_nokia_md_prefixlist(f, b);
break;
case V_NOKIA_SRL:
bgpq4_print_nokia_srl_aclipfilter(f, b);
break;
default:
sx_report(SX_FATAL, "unreachable point\n");
}