Adding upstream version 9.1.upstream/9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 781 insertions, 0 deletions

diff --git a/lib/sockunion.c b/lib/sockunion.c
new file mode 100644
index 0000000..c37ab1d
--- /dev/null
+++ b/lib/sockunion.c
@@ -0,0 +1,781 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Socket union related function.
+ * Copyright (c) 1997, 98 Kunihiro Ishiguro
+ */
+
+#include <zebra.h>
+
+#include "prefix.h"
+#include "vty.h"
+#include "sockunion.h"
+#include "memory.h"
+#include "log.h"
+#include "jhash.h"
+#include "lib_errors.h"
+#include "printfrr.h"
+
+DEFINE_MTYPE_STATIC(LIB, SOCKUNION, "Socket union");
+
+const char *inet_sutop(const union sockunion *su, char *str)
+{
+	switch (su->sa.sa_family) {
+	case AF_INET:
+		inet_ntop(AF_INET, &su->sin.sin_addr, str, INET_ADDRSTRLEN);
+		break;
+	case AF_INET6:
+		inet_ntop(AF_INET6, &su->sin6.sin6_addr, str, INET6_ADDRSTRLEN);
+		break;
+	}
+	return str;
+}
+
+int str2sockunion(const char *str, union sockunion *su)
+{
+	int ret;
+
+	if (str == NULL)
+		return -1;
+
+	memset(su, 0, sizeof(union sockunion));
+
+	ret = inet_pton(AF_INET, str, &su->sin.sin_addr);
+	if (ret > 0) /* Valid IPv4 address format. */
+	{
+		su->sin.sin_family = AF_INET;
+#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
+		su->sin.sin_len = sizeof(struct sockaddr_in);
+#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
+		return 0;
+	}
+	ret = inet_pton(AF_INET6, str, &su->sin6.sin6_addr);
+	if (ret > 0) /* Valid IPv6 address format. */
+	{
+		su->sin6.sin6_family = AF_INET6;
+#ifdef SIN6_LEN
+		su->sin6.sin6_len = sizeof(struct sockaddr_in6);
+#endif /* SIN6_LEN */
+		return 0;
+	}
+	return -1;
+}
+
+const char *sockunion2str(const union sockunion *su, char *buf, size_t len)
+{
+	switch (sockunion_family(su)) {
+	case AF_UNSPEC:
+		snprintf(buf, len, "(unspec)");
+		return buf;
+	case AF_INET:
+		return inet_ntop(AF_INET, &su->sin.sin_addr, buf, len);
+	case AF_INET6:
+		return inet_ntop(AF_INET6, &su->sin6.sin6_addr, buf, len);
+	}
+	snprintf(buf, len, "(af %d)", sockunion_family(su));
+	return buf;
+}
+
+union sockunion *sockunion_str2su(const char *str)
+{
+	union sockunion *su = XCALLOC(MTYPE_SOCKUNION, sizeof(union sockunion));
+
+	if (!str2sockunion(str, su))
+		return su;
+
+	XFREE(MTYPE_SOCKUNION, su);
+	return NULL;
+}
+
+/* Convert IPv4 compatible IPv6 address to IPv4 address. */
+static void sockunion_normalise_mapped(union sockunion *su)
+{
+	struct sockaddr_in sin;
+
+	if (su->sa.sa_family == AF_INET6
+	    && IN6_IS_ADDR_V4MAPPED(&su->sin6.sin6_addr)) {
+		memset(&sin, 0, sizeof(sin));
+		sin.sin_family = AF_INET;
+		sin.sin_port = su->sin6.sin6_port;
+		memcpy(&sin.sin_addr, ((char *)&su->sin6.sin6_addr) + 12, 4);
+		memcpy(su, &sin, sizeof(struct sockaddr_in));
+	}
+}
+
+/* return sockunion structure : this function should be revised. */
+static const char *sockunion_log(const union sockunion *su, char *buf,
+				 size_t len)
+{
+	switch (su->sa.sa_family) {
+	case AF_INET:
+		return inet_ntop(AF_INET, &su->sin.sin_addr, buf, len);
+
+	case AF_INET6:
+		return inet_ntop(AF_INET6, &(su->sin6.sin6_addr), buf, len);
+
+	default:
+		snprintf(buf, len, "af_unknown %d ", su->sa.sa_family);
+		return buf;
+	}
+}
+
+/* Return socket of sockunion. */
+int sockunion_socket(const union sockunion *su)
+{
+	int sock;
+
+	sock = socket(su->sa.sa_family, SOCK_STREAM, 0);
+	if (sock < 0) {
+		char buf[SU_ADDRSTRLEN];
+		flog_err(EC_LIB_SOCKET, "Can't make socket for %s : %s",
+			 sockunion_log(su, buf, SU_ADDRSTRLEN),
+			 safe_strerror(errno));
+		return -1;
+	}
+
+	return sock;
+}
+
+/* Return accepted new socket file descriptor. */
+int sockunion_accept(int sock, union sockunion *su)
+{
+	socklen_t len;
+	int client_sock;
+
+	len = sizeof(union sockunion);
+	client_sock = accept(sock, (struct sockaddr *)su, &len);
+
+	sockunion_normalise_mapped(su);
+	return client_sock;
+}
+
+/* Return sizeof union sockunion.  */
+int sockunion_sizeof(const union sockunion *su)
+{
+	int ret;
+
+	ret = 0;
+	switch (su->sa.sa_family) {
+	case AF_INET:
+		ret = sizeof(struct sockaddr_in);
+		break;
+	case AF_INET6:
+		ret = sizeof(struct sockaddr_in6);
+		break;
+	}
+	return ret;
+}
+
+/* Performs a non-blocking connect().  */
+enum connect_result sockunion_connect(int fd, const union sockunion *peersu,
+				      unsigned short port, ifindex_t ifindex)
+{
+	int ret;
+	union sockunion su;
+
+	memcpy(&su, peersu, sizeof(union sockunion));
+
+	switch (su.sa.sa_family) {
+	case AF_INET:
+		su.sin.sin_port = port;
+		break;
+	case AF_INET6:
+		su.sin6.sin6_port = port;
+#ifdef KAME
+		if (IN6_IS_ADDR_LINKLOCAL(&su.sin6.sin6_addr) && ifindex) {
+			su.sin6.sin6_scope_id = ifindex;
+			SET_IN6_LINKLOCAL_IFINDEX(su.sin6.sin6_addr, ifindex);
+		}
+#endif /* KAME */
+		break;
+	}
+
+	/* Call connect function. */
+	ret = connect(fd, (struct sockaddr *)&su, sockunion_sizeof(&su));
+
+	/* Immediate success */
+	if (ret == 0)
+		return connect_success;
+
+	/* If connect is in progress then return 1 else it's real error. */
+	if (ret < 0) {
+		if (errno != EINPROGRESS) {
+			char str[SU_ADDRSTRLEN];
+			zlog_info("can't connect to %s fd %d : %s",
+				  sockunion_log(&su, str, sizeof(str)), fd,
+				  safe_strerror(errno));
+			return connect_error;
+		}
+	}
+
+	return connect_in_progress;
+}
+
+/* Make socket from sockunion union. */
+int sockunion_stream_socket(union sockunion *su)
+{
+	int sock;
+
+	if (su->sa.sa_family == 0)
+		su->sa.sa_family = AF_INET_UNION;
+
+	sock = socket(su->sa.sa_family, SOCK_STREAM, 0);
+
+	if (sock < 0)
+		flog_err(EC_LIB_SOCKET,
+			 "can't make socket sockunion_stream_socket");
+
+	return sock;
+}
+
+/* Bind socket to specified address. */
+int sockunion_bind(int sock, union sockunion *su, unsigned short port,
+		   union sockunion *su_addr)
+{
+	int size = 0;
+	int ret;
+
+	if (su->sa.sa_family == AF_INET) {
+		size = sizeof(struct sockaddr_in);
+		su->sin.sin_port = htons(port);
+#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
+		su->sin.sin_len = size;
+#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
+		if (su_addr == NULL)
+			sockunion2ip(su) = htonl(INADDR_ANY);
+	} else if (su->sa.sa_family == AF_INET6) {
+		size = sizeof(struct sockaddr_in6);
+		su->sin6.sin6_port = htons(port);
+#ifdef SIN6_LEN
+		su->sin6.sin6_len = size;
+#endif /* SIN6_LEN */
+		if (su_addr == NULL) {
+#ifdef LINUX_IPV6
+			memset(&su->sin6.sin6_addr, 0, sizeof(struct in6_addr));
+#else
+			su->sin6.sin6_addr = in6addr_any;
+#endif /* LINUX_IPV6 */
+		}
+	}
+
+	ret = bind(sock, (struct sockaddr *)su, size);
+	if (ret < 0) {
+		char buf[SU_ADDRSTRLEN];
+		flog_err(EC_LIB_SOCKET, "can't bind socket for %s : %s",
+			 sockunion_log(su, buf, SU_ADDRSTRLEN),
+			 safe_strerror(errno));
+	}
+
+	return ret;
+}
+
+int sockopt_reuseaddr(int sock)
+{
+	int ret;
+	int on = 1;
+
+	ret = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *)&on,
+			 sizeof(on));
+	if (ret < 0) {
+		flog_err(
+			EC_LIB_SOCKET,
+			"can't set sockopt SO_REUSEADDR to socket %d errno=%d: %s",
+			sock, errno, safe_strerror(errno));
+		return -1;
+	}
+	return 0;
+}
+
+#ifdef SO_REUSEPORT
+int sockopt_reuseport(int sock)
+{
+	int ret;
+	int on = 1;
+
+	ret = setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, (void *)&on,
+			 sizeof(on));
+	if (ret < 0) {
+		flog_err(EC_LIB_SOCKET,
+			 "can't set sockopt SO_REUSEPORT to socket %d", sock);
+		return -1;
+	}
+	return 0;
+}
+#else
+int sockopt_reuseport(int sock)
+{
+	return 0;
+}
+#endif /* 0 */
+
+int sockopt_ttl(int family, int sock, int ttl)
+{
+	int ret;
+
+#ifdef IP_TTL
+	if (family == AF_INET) {
+		ret = setsockopt(sock, IPPROTO_IP, IP_TTL, (void *)&ttl,
+				 sizeof(int));
+		if (ret < 0) {
+			flog_err(EC_LIB_SOCKET,
+				 "can't set sockopt IP_TTL %d to socket %d",
+				 ttl, sock);
+			return -1;
+		}
+		return 0;
+	}
+#endif /* IP_TTL */
+	if (family == AF_INET6) {
+		ret = setsockopt(sock, IPPROTO_IPV6, IPV6_UNICAST_HOPS,
+				 (void *)&ttl, sizeof(int));
+		if (ret < 0) {
+			flog_err(
+				EC_LIB_SOCKET,
+				"can't set sockopt IPV6_UNICAST_HOPS %d to socket %d",
+				ttl, sock);
+			return -1;
+		}
+		return 0;
+	}
+	return 0;
+}
+
+int sockopt_minttl(int family, int sock, int minttl)
+{
+#ifdef IP_MINTTL
+	if (family == AF_INET) {
+		int ret = setsockopt(sock, IPPROTO_IP, IP_MINTTL, &minttl,
+				     sizeof(minttl));
+		if (ret < 0)
+			flog_err(
+				EC_LIB_SOCKET,
+				"can't set sockopt IP_MINTTL to %d on socket %d: %s",
+				minttl, sock, safe_strerror(errno));
+		return ret;
+	}
+#endif /* IP_MINTTL */
+#ifdef IPV6_MINHOPCOUNT
+	if (family == AF_INET6) {
+		int ret = setsockopt(sock, IPPROTO_IPV6, IPV6_MINHOPCOUNT,
+				     &minttl, sizeof(minttl));
+		if (ret < 0)
+			flog_err(
+				EC_LIB_SOCKET,
+				"can't set sockopt IPV6_MINHOPCOUNT to %d on socket %d: %s",
+				minttl, sock, safe_strerror(errno));
+		return ret;
+	}
+#endif
+
+	errno = EOPNOTSUPP;
+	return -1;
+}
+
+int sockopt_v6only(int family, int sock)
+{
+	int ret, on = 1;
+
+#ifdef IPV6_V6ONLY
+	if (family == AF_INET6) {
+		ret = setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (void *)&on,
+				 sizeof(int));
+		if (ret < 0) {
+			flog_err(EC_LIB_SOCKET,
+				 "can't set sockopt IPV6_V6ONLY to socket %d",
+				 sock);
+			return -1;
+		}
+		return 0;
+	}
+#endif /* IPV6_V6ONLY */
+	return 0;
+}
+
+/* If same family and same prefix return 1. */
+int sockunion_same(const union sockunion *su1, const union sockunion *su2)
+{
+	int ret = 0;
+
+	if (su1->sa.sa_family != su2->sa.sa_family)
+		return 0;
+
+	switch (su1->sa.sa_family) {
+	case AF_INET:
+		ret = memcmp(&su1->sin.sin_addr, &su2->sin.sin_addr,
+			     sizeof(struct in_addr));
+		break;
+	case AF_INET6:
+		ret = memcmp(&su1->sin6.sin6_addr, &su2->sin6.sin6_addr,
+			     sizeof(struct in6_addr));
+		if ((ret == 0) && IN6_IS_ADDR_LINKLOCAL(&su1->sin6.sin6_addr)) {
+			/* compare interface indices */
+			if (su1->sin6.sin6_scope_id && su2->sin6.sin6_scope_id)
+				ret = (su1->sin6.sin6_scope_id
+				       == su2->sin6.sin6_scope_id)
+					      ? 0
+					      : 1;
+		}
+		break;
+	}
+	if (ret == 0)
+		return 1;
+	else
+		return 0;
+}
+
+unsigned int sockunion_hash(const union sockunion *su)
+{
+	switch (sockunion_family(su)) {
+	case AF_INET:
+		return jhash_1word(su->sin.sin_addr.s_addr, 0);
+	case AF_INET6:
+		return jhash2(su->sin6.sin6_addr.s6_addr32,
+			      array_size(su->sin6.sin6_addr.s6_addr32), 0);
+	}
+	return 0;
+}
+
+size_t family2addrsize(int family)
+{
+	switch (family) {
+	case AF_INET:
+		return sizeof(struct in_addr);
+	case AF_INET6:
+		return sizeof(struct in6_addr);
+	}
+	return 0;
+}
+
+size_t sockunion_get_addrlen(const union sockunion *su)
+{
+	return family2addrsize(sockunion_family(su));
+}
+
+const uint8_t *sockunion_get_addr(const union sockunion *su)
+{
+	switch (sockunion_family(su)) {
+	case AF_INET:
+		return (const uint8_t *)&su->sin.sin_addr.s_addr;
+	case AF_INET6:
+		return (const uint8_t *)&su->sin6.sin6_addr;
+	}
+	return NULL;
+}
+
+void sockunion_set(union sockunion *su, int family, const uint8_t *addr,
+		   size_t bytes)
+{
+	if (family2addrsize(family) != bytes)
+		return;
+
+	sockunion_family(su) = family;
+	switch (family) {
+	case AF_INET:
+		memcpy(&su->sin.sin_addr.s_addr, addr, bytes);
+		break;
+	case AF_INET6:
+		memcpy(&su->sin6.sin6_addr, addr, bytes);
+		break;
+	}
+}
+
+/* After TCP connection is established.  Get local address and port. */
+union sockunion *sockunion_getsockname(int fd)
+{
+	int ret;
+	socklen_t len;
+	union {
+		struct sockaddr sa;
+		struct sockaddr_in sin;
+		struct sockaddr_in6 sin6;
+		char tmp_buffer[128];
+	} name;
+	union sockunion *su;
+
+	memset(&name, 0, sizeof(name));
+	len = sizeof(name);
+
+	ret = getsockname(fd, (struct sockaddr *)&name, &len);
+	if (ret < 0) {
+		flog_err(EC_LIB_SOCKET,
+			 "Can't get local address and port by getsockname: %s",
+			 safe_strerror(errno));
+		return NULL;
+	}
+
+	if (name.sa.sa_family == AF_INET) {
+		su = XCALLOC(MTYPE_SOCKUNION, sizeof(union sockunion));
+		memcpy(su, &name, sizeof(struct sockaddr_in));
+		return su;
+	}
+	if (name.sa.sa_family == AF_INET6) {
+		su = XCALLOC(MTYPE_SOCKUNION, sizeof(union sockunion));
+		memcpy(su, &name, sizeof(struct sockaddr_in6));
+		sockunion_normalise_mapped(su);
+		return su;
+	}
+
+	flog_err(
+		EC_LIB_SOCKET,
+		"Unexpected AFI received(%d) for sockunion_getsockname call for fd: %d",
+		name.sa.sa_family, fd);
+	return NULL;
+}
+
+/* After TCP connection is established.  Get remote address and port. */
+union sockunion *sockunion_getpeername(int fd)
+{
+	int ret;
+	socklen_t len;
+	union {
+		struct sockaddr sa;
+		struct sockaddr_in sin;
+		struct sockaddr_in6 sin6;
+		char tmp_buffer[128];
+	} name;
+	union sockunion *su;
+
+	memset(&name, 0, sizeof(name));
+	len = sizeof(name);
+	ret = getpeername(fd, (struct sockaddr *)&name, &len);
+	if (ret < 0) {
+		flog_err(EC_LIB_SOCKET, "Can't get remote address and port: %s",
+			 safe_strerror(errno));
+		return NULL;
+	}
+
+	if (name.sa.sa_family == AF_INET) {
+		su = XCALLOC(MTYPE_SOCKUNION, sizeof(union sockunion));
+		memcpy(su, &name, sizeof(struct sockaddr_in));
+		return su;
+	}
+	if (name.sa.sa_family == AF_INET6) {
+		su = XCALLOC(MTYPE_SOCKUNION, sizeof(union sockunion));
+		memcpy(su, &name, sizeof(struct sockaddr_in6));
+		sockunion_normalise_mapped(su);
+		return su;
+	}
+
+	flog_err(
+		EC_LIB_SOCKET,
+		"Unexpected AFI received(%d) for sockunion_getpeername call for fd: %d",
+		name.sa.sa_family, fd);
+	return NULL;
+}
+
+/* Print sockunion structure */
+static void __attribute__((unused)) sockunion_print(const union sockunion *su)
+{
+	if (su == NULL)
+		return;
+
+	switch (su->sa.sa_family) {
+	case AF_INET:
+		printf("%pI4\n", &su->sin.sin_addr);
+		break;
+	case AF_INET6:
+		printf("%pI6\n", &su->sin6.sin6_addr);
+		break;
+#ifdef AF_LINK
+	case AF_LINK: {
+		struct sockaddr_dl *sdl;
+
+		sdl = (struct sockaddr_dl *)&(su->sa);
+		printf("link#%d\n", sdl->sdl_index);
+	} break;
+#endif /* AF_LINK */
+	default:
+		printf("af_unknown %d\n", su->sa.sa_family);
+		break;
+	}
+}
+
+int in6addr_cmp(const struct in6_addr *addr1, const struct in6_addr *addr2)
+{
+	unsigned int i;
+	const uint8_t *p1, *p2;
+
+	p1 = (const uint8_t *)addr1;
+	p2 = (const uint8_t *)addr2;
+
+	for (i = 0; i < sizeof(struct in6_addr); i++) {
+		if (p1[i] > p2[i])
+			return 1;
+		else if (p1[i] < p2[i])
+			return -1;
+	}
+	return 0;
+}
+
+int sockunion_cmp(const union sockunion *su1, const union sockunion *su2)
+{
+	if (su1->sa.sa_family > su2->sa.sa_family)
+		return 1;
+	if (su1->sa.sa_family < su2->sa.sa_family)
+		return -1;
+
+	if (su1->sa.sa_family == AF_INET) {
+		if (ntohl(sockunion2ip(su1)) == ntohl(sockunion2ip(su2)))
+			return 0;
+		if (ntohl(sockunion2ip(su1)) > ntohl(sockunion2ip(su2)))
+			return 1;
+		else
+			return -1;
+	}
+	if (su1->sa.sa_family == AF_INET6)
+		return in6addr_cmp(&su1->sin6.sin6_addr, &su2->sin6.sin6_addr);
+	return 0;
+}
+
+/* Duplicate sockunion. */
+union sockunion *sockunion_dup(const union sockunion *su)
+{
+	union sockunion *dup =
+		XCALLOC(MTYPE_SOCKUNION, sizeof(union sockunion));
+	memcpy(dup, su, sizeof(union sockunion));
+	return dup;
+}
+
+void sockunion_free(union sockunion *su)
+{
+	XFREE(MTYPE_SOCKUNION, su);
+}
+
+void sockunion_init(union sockunion *su)
+{
+	memset(su, 0, sizeof(union sockunion));
+}
+
+printfrr_ext_autoreg_p("SU", printfrr_psu);
+static ssize_t printfrr_psu(struct fbuf *buf, struct printfrr_eargs *ea,
+			    const void *ptr)
+{
+	const union sockunion *su = ptr;
+	bool include_port = false, include_scope = false;
+	bool endflags = false;
+	ssize_t ret = 0;
+	char cbuf[INET6_ADDRSTRLEN];
+
+	if (!su)
+		return bputs(buf, "(null)");
+
+	while (!endflags) {
+		switch (*ea->fmt) {
+		case 'p':
+			ea->fmt++;
+			include_port = true;
+			break;
+		case 's':
+			ea->fmt++;
+			include_scope = true;
+			break;
+		default:
+			endflags = true;
+			break;
+		}
+	}
+
+	switch (sockunion_family(su)) {
+	case AF_UNSPEC:
+		ret += bputs(buf, "(unspec)");
+		break;
+	case AF_INET:
+		inet_ntop(AF_INET, &su->sin.sin_addr, cbuf, sizeof(cbuf));
+		ret += bputs(buf, cbuf);
+		if (include_port)
+			ret += bprintfrr(buf, ":%d", ntohs(su->sin.sin_port));
+		break;
+	case AF_INET6:
+		if (include_port)
+			ret += bputch(buf, '[');
+		inet_ntop(AF_INET6, &su->sin6.sin6_addr, cbuf, sizeof(cbuf));
+		ret += bputs(buf, cbuf);
+		if (include_scope && su->sin6.sin6_scope_id)
+			ret += bprintfrr(buf, "%%%u",
+					 (unsigned int)su->sin6.sin6_scope_id);
+		if (include_port)
+			ret += bprintfrr(buf, "]:%d",
+					 ntohs(su->sin6.sin6_port));
+		break;
+	case AF_UNIX: {
+		int len;
+#ifdef __linux__
+		if (su->sun.sun_path[0] == '\0' && su->sun.sun_path[1]) {
+			len = strnlen(su->sun.sun_path + 1,
+				      sizeof(su->sun.sun_path) - 1);
+			ret += bprintfrr(buf, "@%*pSE", len,
+					 su->sun.sun_path + 1);
+			break;
+		}
+#endif
+		len = strnlen(su->sun.sun_path, sizeof(su->sun.sun_path));
+		ret += bprintfrr(buf, "%*pSE", len, su->sun.sun_path);
+		break;
+	}
+	default:
+		ret += bprintfrr(buf, "(af %d)", sockunion_family(su));
+	}
+
+	return ret;
+}
+
+int sockunion_is_null(const union sockunion *su)
+{
+	unsigned char null_s6_addr[16] = {0};
+
+	switch (sockunion_family(su)) {
+	case AF_UNSPEC:
+		return 1;
+	case AF_INET:
+		return (su->sin.sin_addr.s_addr == 0);
+	case AF_INET6:
+		return !memcmp(su->sin6.sin6_addr.s6_addr, null_s6_addr,
+			       sizeof(null_s6_addr));
+	default:
+		return 0;
+	}
+}
+
+printfrr_ext_autoreg_i("PF", printfrr_pf);
+static ssize_t printfrr_pf(struct fbuf *buf, struct printfrr_eargs *ea,
+			   uintmax_t val)
+{
+	switch (val) {
+	case AF_INET:
+		return bputs(buf, "AF_INET");
+	case AF_INET6:
+		return bputs(buf, "AF_INET6");
+	case AF_UNIX:
+		return bputs(buf, "AF_UNIX");
+#ifdef AF_PACKET
+	case AF_PACKET:
+		return bputs(buf, "AF_PACKET");
+#endif
+#ifdef AF_NETLINK
+	case AF_NETLINK:
+		return bputs(buf, "AF_NETLINK");
+#endif
+	}
+	return bprintfrr(buf, "AF_(%ju)", val);
+}
+
+printfrr_ext_autoreg_i("SO", printfrr_so);
+static ssize_t printfrr_so(struct fbuf *buf, struct printfrr_eargs *ea,
+			   uintmax_t val)
+{
+	switch (val) {
+	case SOCK_STREAM:
+		return bputs(buf, "SOCK_STREAM");
+	case SOCK_DGRAM:
+		return bputs(buf, "SOCK_DGRAM");
+	case SOCK_SEQPACKET:
+		return bputs(buf, "SOCK_SEQPACKET");
+#ifdef SOCK_RAW
+	case SOCK_RAW:
+		return bputs(buf, "SOCK_RAW");
+#endif
+#ifdef SOCK_PACKET
+	case SOCK_PACKET:
+		return bputs(buf, "SOCK_PACKET");
+#endif
+	}
+	return bprintfrr(buf, "SOCK_(%ju)", val);
+}