24#include "nl-default.h"
26#include <linux/socket.h>
28#include <netlink/netlink.h>
29#include <netlink/utils.h>
30#include <netlink/addr.h>
31#include <netlink/attr.h>
34#include "nl-priv-dynamic-core/nl-core.h"
38static inline uint16_t dn_ntohs(uint16_t addr)
47 return ((uint16_t) u.byte[0]) | (((uint16_t) u.byte[1]) << 8);
50static inline int do_digit(
char *str, uint16_t *addr, uint16_t scale,
51 size_t *pos,
size_t len,
int *started)
53 uint16_t tmp = *addr / scale;
58 if (((tmp) > 0) || *started || (scale == 1)) {
62 *addr -= (tmp * scale);
68static const char *dnet_ntop(
const char *addrbuf,
size_t addrlen,
char *str,
71 uint16_t addr = dn_ntohs(*(uint16_t *)addrbuf);
72 uint16_t area = addr >> 10;
84 if (do_digit(str + pos, &area, 10, &pos, len, &started))
87 if (do_digit(str + pos, &area, 1, &pos, len, &started))
97 if (do_digit(str + pos, &addr, 1000, &pos, len, &started))
100 if (do_digit(str + pos, &addr, 100, &pos, len, &started))
103 if (do_digit(str + pos, &addr, 10, &pos, len, &started))
106 if (do_digit(str + pos, &addr, 1, &pos, len, &started))
117static int dnet_num(
const char *src, uint16_t * dst)
123 while ((tmp = *src++) != 0) {
125 if ((tmp < 0) || (tmp > 9))
136static inline int dnet_pton(
const char *src,
char *addrbuf)
142 pos = dnet_num(src, &area);
143 if ((pos == 0) || (area > 63) ||
144 ((*(src + pos) !=
'.') && (*(src + pos) !=
',')))
147 pos = dnet_num(src + pos + 1, &node);
148 if ((pos == 0) || (node > 1023))
151 *(uint16_t *)addrbuf = dn_ntohs((area << 10) | node);
156static void addr_destroy(
struct nl_addr *addr)
161 if (addr->a_refcnt != 1)
187 struct nl_addr *addr;
189 addr = calloc(1,
sizeof(*addr) + maxsize);
194 addr->a_maxsize = maxsize;
218 struct nl_addr *addr;
224 addr->a_family = family;
228 addr->a_prefixlen = 20;
231 addr->a_prefixlen = size*8;
235 memcpy(addr->a_addr, buf, size);
299 int err, copy = 0, len = 0, family = AF_UNSPEC, plen = 0;
300 char *str, *prefix = NULL, buf[256];
301 struct nl_addr *addr = NULL;
303 str = strdup(addrstr);
309 if (hint != AF_MPLS) {
310 prefix = strchr(str,
'/');
315 if (!strcasecmp(str,
"none")) {
320 if (!strcasecmp(str,
"default") ||
321 !strcasecmp(str,
"all") ||
322 !strcasecmp(str,
"any")) {
345 err = -NLE_AF_NOSUPPORT;
352 if (hint == AF_INET || hint == AF_UNSPEC) {
353 if (inet_pton(AF_INET, str, buf) > 0) {
358 if (hint == AF_INET) {
364 if (hint == AF_INET6 || hint == AF_UNSPEC) {
365 if (inet_pton(AF_INET6, str, buf) > 0) {
370 if (hint == AF_INET6) {
376 if ((hint == AF_LLC || hint == AF_UNSPEC) && strchr(str,
':')) {
377 unsigned int a, b, c, d, e, f;
379 if (sscanf(str,
"%02x:%02x:%02x:%02x:%02x:%02x",
380 &a, &b, &c, &d, &e, &f) == 6) {
383 buf[0] = (
unsigned char) a;
384 buf[1] = (
unsigned char) b;
385 buf[2] = (
unsigned char) c;
386 buf[3] = (
unsigned char) d;
387 buf[4] = (
unsigned char) e;
388 buf[5] = (
unsigned char) f;
392 if (hint == AF_LLC) {
398 if ((hint == AF_DECnet || hint == AF_UNSPEC) &&
399 (strchr(str,
'.') || strchr(str,
','))) {
400 if (dnet_pton(str, buf) > 0) {
405 if (hint == AF_DECnet) {
411 if (hint == AF_MPLS) {
412 len = mpls_pton(AF_MPLS, str, buf,
sizeof(buf));
422 if (hint == AF_UNSPEC && strchr(str,
':')) {
426 long l = strtol(s, &p, 16);
428 if (s == p || l > 0xff || i >=
sizeof(buf)) {
433 buf[i++] = (
unsigned char) l;
463 long pl = strtol(++prefix, &p, 0);
499 new =
nl_addr_build(addr->a_family, addr->a_addr, addr->a_len);
501 new->a_prefixlen = addr->a_prefixlen;
546 if (addr->a_refcnt == 1)
560 return addr->a_refcnt > 1;
598 d = a->a_family - b->a_family;
600 d = a->a_len - b->a_len;
602 if (a->a_len && d == 0) {
603 d = memcmp(a->a_addr, b->a_addr, a->a_len);
606 return (a->a_prefixlen - b->a_prefixlen);
628 int d = a->a_family - b->a_family;
631 int len = _NL_MIN(a->a_prefixlen, b->a_prefixlen);
634 d = memcmp(a->a_addr, b->a_addr, bytes);
635 if (d == 0 && (len % 8) != 0) {
636 int mask = (0xFF00 >> (len % 8)) & 0xFF;
638 d = (a->a_addr[bytes] & mask) -
639 (b->a_addr[bytes] & mask);
656 for (i = 0; i < addr->a_len; i++)
679 ret = inet_pton(family, addr, buf);
685 ret = mpls_pton(family, addr, buf,
sizeof(buf));
691 ret = dnet_pton(addr, buf);
697 if (sscanf(addr,
"%*02x:%*02x:%*02x:%*02x:%*02x:%*02x") != 6)
713 switch (addr->a_len) {
741 switch (addr->a_family) {
743 struct sockaddr_in *sai = (
struct sockaddr_in *) sa;
745 if (*salen <
sizeof(*sai))
748 if (addr->a_len == 4)
749 memcpy(&sai->sin_addr, addr->a_addr, 4);
750 else if (addr->a_len != 0)
753 memset(&sai->sin_addr, 0, 4);
755 sai->sin_family = addr->a_family;
756 *salen =
sizeof(*sai);
761 struct sockaddr_in6 *sa6 = (
struct sockaddr_in6 *) sa;
763 if (*salen <
sizeof(*sa6))
766 if (addr->a_len == 16)
767 memcpy(&sa6->sin6_addr, addr->a_addr, 16);
768 else if (addr->a_len != 0)
771 memset(&sa6->sin6_addr, 0, 16);
773 sa6->sin6_family = addr->a_family;
774 *salen =
sizeof(*sa6);
809 char buf[INET6_ADDRSTRLEN+5];
810 struct addrinfo hint = {
811 .ai_flags = AI_NUMERICHOST,
812 .ai_family = addr->a_family,
817 err = getaddrinfo(buf, NULL, &hint, result);
820 case EAI_ADDRFAMILY:
return -NLE_AF_NOSUPPORT;
821 case EAI_AGAIN:
return -NLE_AGAIN;
822 case EAI_BADFLAGS:
return -NLE_INVAL;
823 case EAI_FAIL:
return -NLE_NOADDR;
824 case EAI_FAMILY:
return -NLE_AF_NOSUPPORT;
825 case EAI_MEMORY:
return -NLE_NOMEM;
826 case EAI_NODATA:
return -NLE_NOADDR;
827 case EAI_NONAME:
return -NLE_OBJ_NOTFOUND;
828 case EAI_SERVICE:
return -NLE_OPNOTSUPP;
829 case EAI_SOCKTYPE:
return -NLE_BAD_SOCK;
830 default:
return -NLE_FAILURE;
853 struct sockaddr_in6 buf;
854 socklen_t salen =
sizeof(buf);
860 err = getnameinfo((
struct sockaddr *) &buf, salen, host, hostlen,
861 NULL, 0, NI_NAMEREQD);
863 return nl_syserr2nlerr(err);
884 addr->a_family = family;
897 return addr->a_family;
922 if (len > addr->a_maxsize)
926 memset(addr->a_addr, 0, addr->a_maxsize);
929 memcpy(addr->a_addr, buf, len);
945 return (
void*)addr->a_addr;
969 addr->a_prefixlen = prefixlen;
980 return addr->a_prefixlen;
1006 if (!addr || !addr->a_len) {
1007 snprintf(buf, size,
"none");
1014 switch (addr->a_family) {
1016 inet_ntop(AF_INET, addr->a_addr, buf, size);
1020 inet_ntop(AF_INET6, addr->a_addr, buf, size);
1024 mpls_ntop(AF_MPLS, addr->a_addr, buf, size);
1028 dnet_ntop(addr->a_addr, addr->a_len, buf, size);
1033 snprintf(buf, size,
"%02x",
1034 (
unsigned char) addr->a_addr[0]);
1035 for (i = 1; i < addr->a_len; i++) {
1036 snprintf(tmp,
sizeof(tmp),
":%02x",
1037 (
unsigned char) addr->a_addr[i]);
1038 strncat(buf, tmp, size - strlen(buf) - 1);
1044 if (addr->a_family != AF_MPLS &&
1045 addr->a_prefixlen != (8 * addr->a_len)) {
1046 snprintf(tmp,
sizeof(tmp),
"/%u", addr->a_prefixlen);
1047 strncat(buf, tmp, size - strlen(buf) - 1);
1060static const struct trans_tbl afs[] = {
1061 __ADD(AF_UNSPEC,unspec),
1062 __ADD(AF_UNIX,unix),
1063 __ADD(AF_INET,inet),
1064 __ADD(AF_AX25,ax25),
1066 __ADD(AF_APPLETALK,appletalk),
1067 __ADD(AF_NETROM,netrom),
1068 __ADD(AF_BRIDGE,bridge),
1069 __ADD(AF_ATMPVC,atmpvc),
1071 __ADD(AF_INET6,inet6),
1072 __ADD(AF_ROSE,rose),
1073 __ADD(AF_DECnet,decnet),
1074 __ADD(AF_NETBEUI,netbeui),
1075 __ADD(AF_SECURITY,security),
1077 __ADD(AF_NETLINK,netlink),
1078 __ADD(AF_PACKET,packet),
1080 __ADD(AF_ECONET,econet),
1081 __ADD(AF_ATMSVC,atmsvc),
1086 __ADD(AF_IRDA,irda),
1087 __ADD(AF_PPPOX,pppox),
1088 __ADD(AF_WANPIPE,wanpipe),
1094 __ADD(AF_TIPC,tipc),
1096 __ADD(AF_BLUETOOTH,bluetooth),
1098 __ADD(AF_IUCV,iucv),
1101 __ADD(AF_RXRPC,rxrpc),
1104 __ADD(AF_ISDN,isdn),
1107 __ADD(AF_PHONET,phonet),
1110 __ADD(AF_IEEE802154,ieee802154),
1113 __ADD(AF_CAIF,caif),
1122 __ADD(AF_VSOCK,vsock),
1124 __ADD(AF_MPLS,mpls),
1127char *nl_af2str(
int family,
char *buf,
size_t size)
1129 return __type2str(family, buf, size, afs, ARRAY_SIZE(afs));
1132int nl_str2af(
const char *name)
1134 int fam = __str2type(name, afs, ARRAY_SIZE(afs));
1135 return fam >= 0 ? fam : -EINVAL;
int nl_addr_info(const struct nl_addr *addr, struct addrinfo **result)
Call getaddrinfo() for an abstract address object.
int nl_addr_iszero(const struct nl_addr *addr)
Returns true if the address consists of all zeros.
int nl_addr_fill_sockaddr(const struct nl_addr *addr, struct sockaddr *sa, socklen_t *salen)
Fill out sockaddr structure with values from abstract address object.
void nl_addr_set_prefixlen(struct nl_addr *addr, int prefixlen)
Set the prefix length of an abstract address.
struct nl_addr * nl_addr_get(struct nl_addr *addr)
Increase the reference counter of an abstract address.
struct nl_addr * nl_addr_build(int family, const void *buf, size_t size)
Allocate abstract address based on a binary address.
struct nl_addr * nl_addr_alloc_attr(const struct nlattr *nla, int family)
Allocate abstract address based on Netlink attribute.
int nl_addr_resolve(const struct nl_addr *addr, char *host, size_t hostlen)
Resolve abstract address object to a name using getnameinfo().
void * nl_addr_get_binary_addr(const struct nl_addr *addr)
Get binary address of abstract address object.
int nl_addr_cmp(const struct nl_addr *a, const struct nl_addr *b)
Compare abstract addresses.
struct nl_addr * nl_addr_alloc(size_t maxsize)
Allocate empty abstract address.
int nl_addr_parse(const char *addrstr, int hint, struct nl_addr **result)
Allocate abstract address based on character string.
struct nl_addr * nl_addr_clone(const struct nl_addr *addr)
Clone existing abstract address object.
int nl_addr_set_binary_addr(struct nl_addr *addr, const void *buf, size_t len)
Set binary address of abstract address object.
int nl_addr_get_family(const struct nl_addr *addr)
Return address family.
int nl_addr_cmp_prefix(const struct nl_addr *a, const struct nl_addr *b)
Compare the prefix of two abstract addresses.
char * nl_addr2str(const struct nl_addr *addr, char *buf, size_t size)
Convert abstract address object to character string.
int nl_addr_valid(const char *addr, int family)
Check if address string is parseable for a specific address family.
unsigned int nl_addr_get_prefixlen(const struct nl_addr *addr)
Return prefix length of abstract address object.
unsigned int nl_addr_get_len(const struct nl_addr *addr)
Get length of binary address of abstract address object.
void nl_addr_put(struct nl_addr *addr)
Decrease the reference counter of an abstract address.
void nl_addr_set_family(struct nl_addr *addr, int family)
Set address family.
int nl_addr_shared(const struct nl_addr *addr)
Check whether an abstract address is shared.
int nl_addr_guess_family(const struct nl_addr *addr)
Guess address family of abstract address based on address size.
void * nla_data(const struct nlattr *nla)
Return pointer to the payload section.
int nla_len(const struct nlattr *nla)
Return length of the payload .