1 files changed, 107 insertions, 0 deletions
diff --git a/main/utils.c b/main/utils.c
index bb8559d8c..467f9f13c 100644
--- a/main/utils.c
+++ b/main/utils.c
@@ -2548,3 +2548,110 @@ void __ast_assert_failed(int condition, const char *condition_str, const char *f
 	ast_do_crash();
 }
 #endif	/* defined(AST_DEVMODE) */
+
+char *ast_eid_to_str(char *s, int maxlen, struct ast_eid *eid)
+{
+	int x;
+	char *os = s;
+	if (maxlen < 18) {
+		if (s && (maxlen > 0)) {
+			*s = '\0';
+		}
+	} else {
+		for (x = 0; x < 5; x++) {
+			sprintf(s, "%02x:", (unsigned)eid->eid[x]);
+			s += 3;
+		}
+		sprintf(s, "%02x", (unsigned)eid->eid[5]);
+	}
+	return os;
+}
+
+void ast_set_default_eid(struct ast_eid *eid)
+{
+#if defined(SIOCGIFHWADDR) && defined(HAVE_STRUCT_IFREQ_IFR_IFRU_IFRU_HWADDR)
+	int s, x = 0;
+	char eid_str[20];
+	struct ifreq ifr;
+	static const unsigned int MAXIF = 10;
+
+	s = socket(AF_INET, SOCK_STREAM, 0);
+	if (s < 0) {
+		return;
+	}
+	for (x = 0; x < MAXIF; x++) {
+		static const char *prefixes[] = { "eth", "em" };
+		unsigned int i;
+
+		for (i = 0; i < ARRAY_LEN(prefixes); i++) {
+			memset(&ifr, 0, sizeof(ifr));
+			snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "%s%d", prefixes[i], x);
+			if (!ioctl(s, SIOCGIFHWADDR, &ifr)) {
+				break;
+			}
+		}
+
+		if (i == ARRAY_LEN(prefixes)) {
+			/* Try pciX#[1..N] */
+			for (i = 0; i < MAXIF; i++) {
+				memset(&ifr, 0, sizeof(ifr));
+				snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "pci%d#%u", x, i);
+				if (!ioctl(s, SIOCGIFHWADDR, &ifr)) {
+					break;
+				}
+			}
+			if (i == MAXIF) {
+				continue;
+			}
+		}
+
+		memcpy(eid, ((unsigned char *)&ifr.ifr_hwaddr) + 2, sizeof(*eid));
+		ast_debug(1, "Seeding global EID '%s' from '%s' using 'siocgifhwaddr'\n", ast_eid_to_str(eid_str, sizeof(eid_str), eid), ifr.ifr_name);
+		close(s);
+		return;
+	}
+	close(s);
+#else
+#if defined(ifa_broadaddr) && !defined(SOLARIS)
+	char eid_str[20];
+	struct ifaddrs *ifap;
+
+	if (getifaddrs(&ifap) == 0) {
+		struct ifaddrs *p;
+		for (p = ifap; p; p = p->ifa_next) {
+			if ((p->ifa_addr->sa_family == AF_LINK) && !(p->ifa_flags & IFF_LOOPBACK) && (p->ifa_flags & IFF_RUNNING)) {
+				struct sockaddr_dl* sdp = (struct sockaddr_dl*) p->ifa_addr;
+				memcpy(&(eid->eid), sdp->sdl_data + sdp->sdl_nlen, 6);
+				ast_debug(1, "Seeding global EID '%s' from '%s' using 'getifaddrs'\n", ast_eid_to_str(eid_str, sizeof(eid_str), eid), p->ifa_name);
+				freeifaddrs(ifap);
+				return;
+			}
+		}
+		freeifaddrs(ifap);
+	}
+#endif
+#endif
+	ast_debug(1, "No ethernet interface found for seeding global EID. You will have to set it manually.\n");
+}
+
+int ast_str_to_eid(struct ast_eid *eid, const char *s)
+{
+	unsigned int eid_int[6];
+	int x;
+
+	if (sscanf(s, "%2x:%2x:%2x:%2x:%2x:%2x", &eid_int[0], &eid_int[1], &eid_int[2],
+		 &eid_int[3], &eid_int[4], &eid_int[5]) != 6) {
+			return -1;
+	}
+
+	for (x = 0; x < 6; x++) {
+		eid->eid[x] = eid_int[x];
+	}
+
+	return 0;
+}
+
+int ast_eid_cmp(const struct ast_eid *eid1, const struct ast_eid *eid2)
+{
+	return memcmp(eid1, eid2, sizeof(*eid1));
+}