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Support of Nokia (former Alcatel-Lucent) SR OS

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This commit is contained in:
Michail Litvak
2017-03-01 10:02:04 +02:00
parent def51b4c17
commit 1cc07774cf
4 changed files with 181 additions and 4 deletions
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6
README.md
View File

@@ -59,7 +59,7 @@ Use asdot notation for Cisco as-path access-lists.
#### -E
Generate extended access-list (Cisco) or policy-statement term using
route-filters (Juniper).
route-filters (Juniper) or [ip|ipv6]-prefix-list (Nokia)
#### -f `AS number`
@@ -93,6 +93,10 @@ Maximum length of accepted prefixes (default: `32` for IPv4, `128` for IPv6).
Extra match conditions for Juniper route-filters. See the examples section.
#### -N
Generate config for Nokia SR OS (former Alcatel-Lucent) (default: Cisco)
#### -l `name`
`Name` of generated configuration stanza.

12
bgpq3.c
View File

@@ -55,6 +55,7 @@ usage(int ecode)
printf(" -L depth : limit recursion depth (default: unlimited)\n"),
printf(" -l name : use specified name for generated access/prefix/.."
" list\n");
printf(" -N : generate config for Nokia SR OS (Cisco IOS by default)\n");
printf(" -P : generate prefix-list (default, just for backward"
" compatibility)\n");
printf(" -R len : allow more specific routes up to specified masklen\n");
@@ -83,7 +84,7 @@ void
vendor_exclusive()
{
fprintf(stderr, "-b (BIRD), -B (OpenBGPD), -F (formatted), -J (JunOS), "
"-j (JSON) and -X (IOS XR) options are mutually exclusive\n");
"-j (JSON), -N (NOKIA SR OS) and -X (IOS XR) options are mutually exclusive\n");
exit(1);
};
@@ -135,7 +136,7 @@ main(int argc, char* argv[])
if (getenv("IRRD_SOURCES"))
expander.sources=getenv("IRRD_SOURCES");
while((c=getopt(argc,argv,"2346AbBdDEF:S:jJf:l:L:m:M:W:Ppr:R:G:Th:Xs"))
while((c=getopt(argc,argv,"2346AbBdDEF:S:jJf:l:L:m:M:NW:Ppr:R:G:Th:Xs"))
!=EOF) {
switch(c) {
case '2':
@@ -284,6 +285,9 @@ main(int argc, char* argv[])
*d=0;
};
break;
case 'N': if(expander.vendor) vendor_exclusive();
expander.vendor=V_NOKIA;
break;
case 'T': pipelining=0;
break;
case 's': expander.sequence=1;
@@ -317,6 +321,8 @@ main(int argc, char* argv[])
expander.aswidth=8;
} else if(expander.vendor==V_BIRD) {
expander.aswidth=10;
} else if(expander.vendor==V_NOKIA) {
expander.aswidth=8;
};
} else if(expander.generation==T_OASPATH) {
if(expander.vendor==V_CISCO) {
@@ -325,6 +331,8 @@ main(int argc, char* argv[])
expander.aswidth=7;
} else if(expander.vendor==V_JUNIPER) {
expander.aswidth=8;
} else if(expander.vendor==V_NOKIA) {
expander.aswidth=8;
};
};
};

3
bgpq3.h
View File

@@ -17,7 +17,8 @@ typedef enum {
V_JSON,
V_BIRD,
V_OPENBGPD,
V_FORMAT
V_FORMAT,
V_NOKIA
} bgpq_vendor_t;
typedef enum {

164
bgpq3_printer.c
View File

@@ -323,6 +323,97 @@ bgpq3_print_openbgpd_oaspath(FILE* f, struct bgpq_expander* b)
return 0;
};
int
bgpq3_print_nokia_aspath(FILE* f, struct bgpq_expander* b)
{
int nc=0, lineNo=1, i, j, k;
fprintf(f,"configure router policy-options\nbegin\nno as-path-group \"%s\"\n",
b->name ? b->name : "NN");
fprintf(f,"as-path-group \"%s\"\n", b->name ? b->name : "NN");
if(b->asn32s[b->asnumber/65536] &&
b->asn32s[b->asnumber/65535][(b->asnumber%65536)/8]&
(0x80>>(b->asnumber%8))) {
fprintf(f," entry %u expression \"^%u(%u)*$\"\n", lineNo, b->asnumber,
b->asnumber);
lineNo++;
};
for(k=0;k<65536;k++) {
if(!b->asn32s[k]) continue;
for(i=0;i<8192;i++) {
for(j=0;j<8;j++) {
if(b->asn32s[k][i]&(0x80>>j)) {
if(k*65536+i*8+j==b->asnumber) continue;
if(!nc) {
fprintf(f," entry %u expression \"^%u(.)*(%u",
lineNo,b->asnumber,k*65536+i*8+j);
} else {
fprintf(f,"|%u",k*65536+i*8+j);
};
nc++;
if(nc==b->aswidth) {
fprintf(f,")$\"\n");
nc=0;
lineNo++;
};
};
};
};
};
if(nc) fprintf(f,")$\"\n");
else if(lineNo==1)
fprintf(f," entry 1 \"!.*\"\n");
fprintf(f,"exit\ncommit\n");
return 0;
};
int
bgpq3_print_nokia_oaspath(FILE* f, struct bgpq_expander* b)
{
int nc=0, lineNo=1, i, j, k;
fprintf(f,"configure router policy-options\nbegin\nno as-path-group \"%s\"\n",
b->name ? b->name : "NN");
fprintf(f,"as-path-group \"%s\"\n", b->name ? b->name : "NN");
if(b->asn32s[b->asnumber/65536] &&
b->asn32s[b->asnumber/65536][(b->asnumber%65536)/8]&
(0x80>>(b->asnumber%8))) {
fprintf(f," entry %u expression \"^%u(%u)*$\"\n", lineNo, b->asnumber,
b->asnumber);
lineNo++;
};
for(k=0;k<65536;k++) {
if(!b->asn32s[k]) continue;
for(i=0;i<8192;i++) {
for(j=0;j<8;j++) {
if(b->asn32s[k][i]&(0x80>>j)) {
if(k*65536+i*8+j==b->asnumber) continue;
if(!nc) {
fprintf(f," entry %u expression \"^(.)*(%u",
lineNo,k*65536+i*8+j);
} else {
fprintf(f,"|%u",k*65536+i*8+j);
}
nc++;
if(nc==b->aswidth) {
fprintf(f,")$\"\n");
nc=0;
lineNo++;
};
};
};
};
};
if(nc) fprintf(f,")$\"\n");
else if(lineNo==1)
fprintf(f," entry 1 expression \"!.*\"\n");
fprintf(f,"exit\ncommit\n");
return 0;
};
int
bgpq3_print_aspath(FILE* f, struct bgpq_expander* b)
{
@@ -338,6 +429,8 @@ bgpq3_print_aspath(FILE* f, struct bgpq_expander* b)
return bgpq3_print_bird_aspath(f,b);
} else if(b->vendor==V_OPENBGPD) {
return bgpq3_print_openbgpd_aspath(f,b);
} else if(b->vendor==V_NOKIA) {
return bgpq3_print_nokia_aspath(f,b);
} else {
sx_report(SX_FATAL,"Unknown vendor %i\n", b->vendor);
};
@@ -355,6 +448,8 @@ bgpq3_print_oaspath(FILE* f, struct bgpq_expander* b)
return bgpq3_print_cisco_xr_oaspath(f,b);
} else if(b->vendor==V_OPENBGPD) {
return bgpq3_print_openbgpd_oaspath(f,b);
} else if(b->vendor==V_NOKIA) {
return bgpq3_print_nokia_oaspath(f,b);
} else {
sx_report(SX_FATAL,"Unknown vendor %i\n", b->vendor);
};
@@ -689,6 +784,45 @@ checkSon:
bgpq3_print_ceacl(n->son,ff);
};
void
bgpq3_print_nokia_ipfilter(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));
fprintf(f," prefix %s\n", prefix);
checkSon:
if(n->son)
bgpq3_print_nokia_ipfilter(n->son, ff);
};
void
bgpq3_print_nokia_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 exact\n", prefix);
} else {
if(n->aggregateLow>n->prefix.masklen) {
fprintf(f," prefix %s prefix-length-range %u-%u\n",
prefix,n->aggregateLow,n->aggregateHi);
} else {
fprintf(f," prefix %s prefix-length-range %u-%u\n",
prefix, n->prefix.masklen, n->aggregateHi);
};
};
checkSon:
if(n->son)
bgpq3_print_nokia_prefix(n->son, ff);
};
int
bgpq3_print_juniper_prefixlist(FILE* f, struct bgpq_expander* b)
{
@@ -840,6 +974,18 @@ bgpq3_print_format_prefixlist(FILE* f, struct bgpq_expander* b)
return 0;
};
int
bgpq3_print_nokia_prefixlist(FILE* f, struct bgpq_expander* b)
{
bname=b->name ? b->name : "NN";
fprintf(f,"configure router policy-options\nbegin\nno prefix-list \"%s\"\n",
bname);
fprintf(f,"prefix-list \"%s\"\n", bname);
sx_radix_tree_foreach(b->tree,bgpq3_print_nokia_prefix,f);
fprintf(f,"exit\ncommit\n");
return 0;
};
int
bgpq3_print_cisco_eacl(FILE* f, struct bgpq_expander* b)
{
@@ -855,6 +1001,22 @@ bgpq3_print_cisco_eacl(FILE* f, struct bgpq_expander* b)
return 0;
};
int
bgpq3_print_nokia_ipprefixlist(FILE* f, struct bgpq_expander* b)
{
bname=b->name ? b->name : "NN";
fprintf(f,"configure filter match-list\nno %s-prefix-list \"%s\"\n",
b->tree->family==AF_INET?"ip":"ipv6", bname);
fprintf(f,"%s-prefix-list \"%s\" create\n", b->tree->family==AF_INET?"ip":"ipv6", bname);
if (!sx_radix_tree_empty(b->tree)) {
sx_radix_tree_foreach(b->tree,bgpq3_print_nokia_ipfilter,f);
} else {
fprintf(f,"# generated ip-prefix-list %s is empty\n", bname);
};
fprintf(f,"exit\n");
return 0;
};
int
bgpq3_print_prefixlist(FILE* f, struct bgpq_expander* b)
{
@@ -866,6 +1028,7 @@ bgpq3_print_prefixlist(FILE* f, struct bgpq_expander* b)
case V_BIRD: return bgpq3_print_bird_prefixlist(f,b);
case V_OPENBGPD: return bgpq3_print_openbgpd_prefixlist(f,b);
case V_FORMAT: return bgpq3_print_format_prefixlist(f,b);
case V_NOKIA: return bgpq3_print_nokia_prefixlist(f,b);
};
return 0;
};
@@ -881,6 +1044,7 @@ bgpq3_print_eacl(FILE* f, struct bgpq_expander* b)
case V_BIRD: sx_report(SX_FATAL, "unreachable point\n");
case V_OPENBGPD: return bgpq3_print_openbgpd_prefixlist(f,b);
case V_FORMAT: sx_report(SX_FATAL, "unreachable point\n");
case V_NOKIA: return bgpq3_print_nokia_ipprefixlist(f,b);
};
return 0;
};