cipher-ctr.o cleanup.o \
compat.o fatal.o hostfile.o \
log.o match.o moduli.o nchan.o packet.o \
- readpass.o ttymodes.o xmalloc.o addrmatch.o \
+ readpass.o ttymodes.o xmalloc.o addr.o addrmatch.o \
atomicio.o dispatch.o mac.o misc.o utf8.o \
monitor_fdpass.o rijndael.o ssh-dss.o ssh-ecdsa.o ssh-ecdsa-sk.o \
ssh-ed25519-sk.o ssh-rsa.o dh.o \
--- /dev/null
+/* $OpenBSD: addr.c,v 1.1 2021/01/09 11:58:50 dtucker Exp $ */
+
+/*
+ * Copyright (c) 2004-2008 Damien Miller <djm@mindrot.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "includes.h"
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "addr.h"
+
+#define _SA(x) ((struct sockaddr *)(x))
+
+int
+addr_unicast_masklen(int af)
+{
+ switch (af) {
+ case AF_INET:
+ return 32;
+ case AF_INET6:
+ return 128;
+ default:
+ return -1;
+ }
+}
+
+static inline int
+masklen_valid(int af, u_int masklen)
+{
+ switch (af) {
+ case AF_INET:
+ return masklen <= 32 ? 0 : -1;
+ case AF_INET6:
+ return masklen <= 128 ? 0 : -1;
+ default:
+ return -1;
+ }
+}
+
+int
+addr_xaddr_to_sa(const struct xaddr *xa, struct sockaddr *sa, socklen_t *len,
+ u_int16_t port)
+{
+ struct sockaddr_in *in4 = (struct sockaddr_in *)sa;
+ struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)sa;
+
+ if (xa == NULL || sa == NULL || len == NULL)
+ return -1;
+
+ switch (xa->af) {
+ case AF_INET:
+ if (*len < sizeof(*in4))
+ return -1;
+ memset(sa, '\0', sizeof(*in4));
+ *len = sizeof(*in4);
+#ifdef SOCK_HAS_LEN
+ in4->sin_len = sizeof(*in4);
+#endif
+ in4->sin_family = AF_INET;
+ in4->sin_port = htons(port);
+ memcpy(&in4->sin_addr, &xa->v4, sizeof(in4->sin_addr));
+ break;
+ case AF_INET6:
+ if (*len < sizeof(*in6))
+ return -1;
+ memset(sa, '\0', sizeof(*in6));
+ *len = sizeof(*in6);
+#ifdef SOCK_HAS_LEN
+ in6->sin6_len = sizeof(*in6);
+#endif
+ in6->sin6_family = AF_INET6;
+ in6->sin6_port = htons(port);
+ memcpy(&in6->sin6_addr, &xa->v6, sizeof(in6->sin6_addr));
+ in6->sin6_scope_id = xa->scope_id;
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Convert struct sockaddr to struct xaddr
+ * Returns 0 on success, -1 on failure.
+ */
+int
+addr_sa_to_xaddr(struct sockaddr *sa, socklen_t slen, struct xaddr *xa)
+{
+ struct sockaddr_in *in4 = (struct sockaddr_in *)sa;
+ struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)sa;
+
+ memset(xa, '\0', sizeof(*xa));
+
+ switch (sa->sa_family) {
+ case AF_INET:
+ if (slen < (socklen_t)sizeof(*in4))
+ return -1;
+ xa->af = AF_INET;
+ memcpy(&xa->v4, &in4->sin_addr, sizeof(xa->v4));
+ break;
+ case AF_INET6:
+ if (slen < (socklen_t)sizeof(*in6))
+ return -1;
+ xa->af = AF_INET6;
+ memcpy(&xa->v6, &in6->sin6_addr, sizeof(xa->v6));
+#ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
+ xa->scope_id = in6->sin6_scope_id;
+#endif
+ break;
+ default:
+ return -1;
+ }
+
+ return 0;
+}
+
+int
+addr_invert(struct xaddr *n)
+{
+ int i;
+
+ if (n == NULL)
+ return -1;
+
+ switch (n->af) {
+ case AF_INET:
+ n->v4.s_addr = ~n->v4.s_addr;
+ return 0;
+ case AF_INET6:
+ for (i = 0; i < 4; i++)
+ n->addr32[i] = ~n->addr32[i];
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+/*
+ * Calculate a netmask of length 'l' for address family 'af' and
+ * store it in 'n'.
+ * Returns 0 on success, -1 on failure.
+ */
+int
+addr_netmask(int af, u_int l, struct xaddr *n)
+{
+ int i;
+
+ if (masklen_valid(af, l) != 0 || n == NULL)
+ return -1;
+
+ memset(n, '\0', sizeof(*n));
+ switch (af) {
+ case AF_INET:
+ n->af = AF_INET;
+ if (l == 0)
+ return 0;
+ n->v4.s_addr = htonl((0xffffffff << (32 - l)) & 0xffffffff);
+ return 0;
+ case AF_INET6:
+ n->af = AF_INET6;
+ for (i = 0; i < 4 && l >= 32; i++, l -= 32)
+ n->addr32[i] = 0xffffffffU;
+ if (i < 4 && l != 0)
+ n->addr32[i] = htonl((0xffffffff << (32 - l)) &
+ 0xffffffff);
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+int
+addr_hostmask(int af, u_int l, struct xaddr *n)
+{
+ if (addr_netmask(af, l, n) == -1 || addr_invert(n) == -1)
+ return -1;
+ return 0;
+}
+
+/*
+ * Perform logical AND of addresses 'a' and 'b', storing result in 'dst'.
+ * Returns 0 on success, -1 on failure.
+ */
+int
+addr_and(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b)
+{
+ int i;
+
+ if (dst == NULL || a == NULL || b == NULL || a->af != b->af)
+ return -1;
+
+ memcpy(dst, a, sizeof(*dst));
+ switch (a->af) {
+ case AF_INET:
+ dst->v4.s_addr &= b->v4.s_addr;
+ return 0;
+ case AF_INET6:
+ dst->scope_id = a->scope_id;
+ for (i = 0; i < 4; i++)
+ dst->addr32[i] &= b->addr32[i];
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+int
+addr_cmp(const struct xaddr *a, const struct xaddr *b)
+{
+ int i;
+
+ if (a->af != b->af)
+ return (a->af == AF_INET6 ? 1 : -1);
+
+ switch (a->af) {
+ case AF_INET:
+ /*
+ * Can't just subtract here as 255.255.255.255 - 0.0.0.0 is
+ * too big to fit into a signed int
+ */
+ if (a->v4.s_addr == b->v4.s_addr)
+ return 0;
+ return (ntohl(a->v4.s_addr) > ntohl(b->v4.s_addr) ? 1 : -1);
+ case AF_INET6:;
+ /*
+ * Do this a byte at a time to avoid the above issue and
+ * any endian problems
+ */
+ for (i = 0; i < 16; i++)
+ if (a->addr8[i] - b->addr8[i] != 0)
+ return (a->addr8[i] - b->addr8[i]);
+ if (a->scope_id == b->scope_id)
+ return (0);
+ return (a->scope_id > b->scope_id ? 1 : -1);
+ default:
+ return (-1);
+ }
+}
+
+int
+addr_is_all0s(const struct xaddr *a)
+{
+ int i;
+
+ switch (a->af) {
+ case AF_INET:
+ return (a->v4.s_addr == 0 ? 0 : -1);
+ case AF_INET6:;
+ for (i = 0; i < 4; i++)
+ if (a->addr32[i] != 0)
+ return -1;
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+/*
+ * Test whether host portion of address 'a', as determined by 'masklen'
+ * is all zeros.
+ * Returns 0 on if host portion of address is all-zeros,
+ * -1 if not all zeros or on failure.
+ */
+int
+addr_host_is_all0s(const struct xaddr *a, u_int masklen)
+{
+ struct xaddr tmp_addr, tmp_mask, tmp_result;
+
+ memcpy(&tmp_addr, a, sizeof(tmp_addr));
+ if (addr_hostmask(a->af, masklen, &tmp_mask) == -1)
+ return -1;
+ if (addr_and(&tmp_result, &tmp_addr, &tmp_mask) == -1)
+ return -1;
+ return addr_is_all0s(&tmp_result);
+}
+
+/*
+ * Parse string address 'p' into 'n'
+ * Returns 0 on success, -1 on failure.
+ */
+int
+addr_pton(const char *p, struct xaddr *n)
+{
+ struct addrinfo hints, *ai;
+
+ memset(&hints, '\0', sizeof(hints));
+ hints.ai_flags = AI_NUMERICHOST;
+
+ if (p == NULL || getaddrinfo(p, NULL, &hints, &ai) != 0)
+ return -1;
+
+ if (ai == NULL || ai->ai_addr == NULL)
+ return -1;
+
+ if (n != NULL && addr_sa_to_xaddr(ai->ai_addr, ai->ai_addrlen,
+ n) == -1) {
+ freeaddrinfo(ai);
+ return -1;
+ }
+
+ freeaddrinfo(ai);
+ return 0;
+}
+
+int
+addr_sa_pton(const char *h, const char *s, struct sockaddr *sa, socklen_t slen)
+{
+ struct addrinfo hints, *ai;
+
+ memset(&hints, '\0', sizeof(hints));
+ hints.ai_flags = AI_NUMERICHOST;
+
+ if (h == NULL || getaddrinfo(h, s, &hints, &ai) != 0)
+ return -1;
+
+ if (ai == NULL || ai->ai_addr == NULL)
+ return -1;
+
+ if (sa != NULL) {
+ if (slen < ai->ai_addrlen)
+ return -1;
+ memcpy(sa, &ai->ai_addr, ai->ai_addrlen);
+ }
+
+ freeaddrinfo(ai);
+ return 0;
+}
+
+int
+addr_ntop(const struct xaddr *n, char *p, size_t len)
+{
+ struct sockaddr_storage ss;
+ socklen_t slen = sizeof(ss);
+
+ if (addr_xaddr_to_sa(n, _SA(&ss), &slen, 0) == -1)
+ return -1;
+ if (n == NULL || p == NULL || len == 0)
+ return -1;
+ if (getnameinfo(_SA(&ss), slen, p, len, NULL, 0,
+ NI_NUMERICHOST) == -1)
+ return -1;
+
+ return 0;
+}
+
+/*
+ * Parse a CIDR address (x.x.x.x/y or xxxx:yyyy::/z).
+ * Return -1 on parse error, -2 on inconsistency or 0 on success.
+ */
+int
+addr_pton_cidr(const char *p, struct xaddr *n, u_int *l)
+{
+ struct xaddr tmp;
+ long unsigned int masklen = 999;
+ char addrbuf[64], *mp, *cp;
+
+ /* Don't modify argument */
+ if (p == NULL || strlcpy(addrbuf, p, sizeof(addrbuf)) >= sizeof(addrbuf))
+ return -1;
+
+ if ((mp = strchr(addrbuf, '/')) != NULL) {
+ *mp = '\0';
+ mp++;
+ masklen = strtoul(mp, &cp, 10);
+ if (*mp == '\0' || *cp != '\0' || masklen > 128)
+ return -1;
+ }
+
+ if (addr_pton(addrbuf, &tmp) == -1)
+ return -1;
+
+ if (mp == NULL)
+ masklen = addr_unicast_masklen(tmp.af);
+ if (masklen_valid(tmp.af, masklen) == -1)
+ return -2;
+ if (addr_host_is_all0s(&tmp, masklen) != 0)
+ return -2;
+
+ if (n != NULL)
+ memcpy(n, &tmp, sizeof(*n));
+ if (l != NULL)
+ *l = masklen;
+
+ return 0;
+}
+
+int
+addr_netmatch(const struct xaddr *host, const struct xaddr *net, u_int masklen)
+{
+ struct xaddr tmp_mask, tmp_result;
+
+ if (host->af != net->af)
+ return -1;
+
+ if (addr_netmask(host->af, masklen, &tmp_mask) == -1)
+ return -1;
+ if (addr_and(&tmp_result, host, &tmp_mask) == -1)
+ return -1;
+ return addr_cmp(&tmp_result, net);
+}
--- /dev/null
+/*
+ * Copyright (c) 2004,2005 Damien Miller <djm@mindrot.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* Address handling routines */
+
+#ifndef _ADDR_H
+#define _ADDR_H
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+struct xaddr {
+ sa_family_t af;
+ union {
+ struct in_addr v4;
+ struct in6_addr v6;
+ u_int8_t addr8[16];
+ u_int16_t addr16[8];
+ u_int32_t addr32[4];
+ } xa; /* 128-bit address */
+ u_int32_t scope_id; /* iface scope id for v6 */
+#define v4 xa.v4
+#define v6 xa.v6
+#define addr8 xa.addr8
+#define addr16 xa.addr16
+#define addr32 xa.addr32
+};
+
+int addr_unicast_masklen(int af);
+int addr_xaddr_to_sa(const struct xaddr *xa, struct sockaddr *sa,
+ socklen_t *len, u_int16_t port);
+int addr_sa_to_xaddr(struct sockaddr *sa, socklen_t slen, struct xaddr *xa);
+int addr_netmask(int af, u_int l, struct xaddr *n);
+int addr_hostmask(int af, u_int l, struct xaddr *n);
+int addr_invert(struct xaddr *n);
+int addr_pton(const char *p, struct xaddr *n);
+int addr_sa_pton(const char *h, const char *s, struct sockaddr *sa,
+ socklen_t slen);
+int addr_pton_cidr(const char *p, struct xaddr *n, u_int *l);
+int addr_ntop(const struct xaddr *n, char *p, size_t len);
+int addr_and(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b);
+int addr_cmp(const struct xaddr *a, const struct xaddr *b);
+int addr_is_all0s(const struct xaddr *n);
+int addr_host_is_all0s(const struct xaddr *n, u_int masklen);
+int addr_netmatch(const struct xaddr *host, const struct xaddr *net,
+ u_int masklen);
+#endif /* _ADDR_H */
-/* $OpenBSD: addrmatch.c,v 1.15 2020/10/18 11:32:01 djm Exp $ */
+/* $OpenBSD: addrmatch.c,v 1.16 2021/01/09 11:58:50 dtucker Exp $ */
/*
* Copyright (c) 2004-2008 Damien Miller <djm@mindrot.org>
#include <stdio.h>
#include <stdarg.h>
+#include "addr.h"
#include "match.h"
#include "log.h"
-struct xaddr {
- sa_family_t af;
- union {
- struct in_addr v4;
- struct in6_addr v6;
- u_int8_t addr8[16];
- u_int32_t addr32[4];
- } xa; /* 128-bit address */
- u_int32_t scope_id; /* iface scope id for v6 */
-#define v4 xa.v4
-#define v6 xa.v6
-#define addr8 xa.addr8
-#define addr32 xa.addr32
-};
-
-static int
-addr_unicast_masklen(int af)
-{
- switch (af) {
- case AF_INET:
- return 32;
- case AF_INET6:
- return 128;
- default:
- return -1;
- }
-}
-
-static inline int
-masklen_valid(int af, u_int masklen)
-{
- switch (af) {
- case AF_INET:
- return masklen <= 32 ? 0 : -1;
- case AF_INET6:
- return masklen <= 128 ? 0 : -1;
- default:
- return -1;
- }
-}
-
-/*
- * Convert struct sockaddr to struct xaddr
- * Returns 0 on success, -1 on failure.
- */
-static int
-addr_sa_to_xaddr(struct sockaddr *sa, socklen_t slen, struct xaddr *xa)
-{
- struct sockaddr_in *in4 = (struct sockaddr_in *)sa;
- struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)sa;
-
- memset(xa, '\0', sizeof(*xa));
-
- switch (sa->sa_family) {
- case AF_INET:
- if (slen < (socklen_t)sizeof(*in4))
- return -1;
- xa->af = AF_INET;
- memcpy(&xa->v4, &in4->sin_addr, sizeof(xa->v4));
- break;
- case AF_INET6:
- if (slen < (socklen_t)sizeof(*in6))
- return -1;
- xa->af = AF_INET6;
- memcpy(&xa->v6, &in6->sin6_addr, sizeof(xa->v6));
-#ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
- xa->scope_id = in6->sin6_scope_id;
-#endif
- break;
- default:
- return -1;
- }
-
- return 0;
-}
-
-/*
- * Calculate a netmask of length 'l' for address family 'af' and
- * store it in 'n'.
- * Returns 0 on success, -1 on failure.
- */
-static int
-addr_netmask(int af, u_int l, struct xaddr *n)
-{
- int i;
-
- if (masklen_valid(af, l) != 0 || n == NULL)
- return -1;
-
- memset(n, '\0', sizeof(*n));
- switch (af) {
- case AF_INET:
- n->af = AF_INET;
- if (l == 0)
- return 0;
- n->v4.s_addr = htonl((0xffffffff << (32 - l)) & 0xffffffff);
- return 0;
- case AF_INET6:
- n->af = AF_INET6;
- for (i = 0; i < 4 && l >= 32; i++, l -= 32)
- n->addr32[i] = 0xffffffffU;
- if (i < 4 && l != 0)
- n->addr32[i] = htonl((0xffffffff << (32 - l)) &
- 0xffffffff);
- return 0;
- default:
- return -1;
- }
-}
-
-/*
- * Perform logical AND of addresses 'a' and 'b', storing result in 'dst'.
- * Returns 0 on success, -1 on failure.
- */
-static int
-addr_and(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b)
-{
- int i;
-
- if (dst == NULL || a == NULL || b == NULL || a->af != b->af)
- return -1;
-
- memcpy(dst, a, sizeof(*dst));
- switch (a->af) {
- case AF_INET:
- dst->v4.s_addr &= b->v4.s_addr;
- return 0;
- case AF_INET6:
- dst->scope_id = a->scope_id;
- for (i = 0; i < 4; i++)
- dst->addr32[i] &= b->addr32[i];
- return 0;
- default:
- return -1;
- }
-}
-
-/*
- * Compare addresses 'a' and 'b'
- * Return 0 if addresses are identical, -1 if (a < b) or 1 if (a > b)
- */
-static int
-addr_cmp(const struct xaddr *a, const struct xaddr *b)
-{
- int i;
-
- if (a->af != b->af)
- return a->af == AF_INET6 ? 1 : -1;
-
- switch (a->af) {
- case AF_INET:
- if (a->v4.s_addr == b->v4.s_addr)
- return 0;
- return ntohl(a->v4.s_addr) > ntohl(b->v4.s_addr) ? 1 : -1;
- case AF_INET6:
- for (i = 0; i < 16; i++)
- if (a->addr8[i] - b->addr8[i] != 0)
- return a->addr8[i] > b->addr8[i] ? 1 : -1;
- if (a->scope_id == b->scope_id)
- return 0;
- return a->scope_id > b->scope_id ? 1 : -1;
- default:
- return -1;
- }
-}
-
-/*
- * Parse string address 'p' into 'n'
- * Returns 0 on success, -1 on failure.
- */
-static int
-addr_pton(const char *p, struct xaddr *n)
-{
- struct addrinfo hints, *ai = NULL;
- int ret = -1;
-
- memset(&hints, '\0', sizeof(hints));
- hints.ai_flags = AI_NUMERICHOST;
-
- if (p == NULL || getaddrinfo(p, NULL, &hints, &ai) != 0)
- goto out;
- if (ai == NULL || ai->ai_addr == NULL)
- goto out;
- if (n != NULL && addr_sa_to_xaddr(ai->ai_addr, ai->ai_addrlen, n) == -1)
- goto out;
- /* success */
- ret = 0;
- out:
- if (ai != NULL)
- freeaddrinfo(ai);
- return ret;
-}
-
-/*
- * Perform bitwise negation of address
- * Returns 0 on success, -1 on failure.
- */
-static int
-addr_invert(struct xaddr *n)
-{
- int i;
-
- if (n == NULL)
- return (-1);
-
- switch (n->af) {
- case AF_INET:
- n->v4.s_addr = ~n->v4.s_addr;
- return (0);
- case AF_INET6:
- for (i = 0; i < 4; i++)
- n->addr32[i] = ~n->addr32[i];
- return (0);
- default:
- return (-1);
- }
-}
-
-/*
- * Calculate a netmask of length 'l' for address family 'af' and
- * store it in 'n'.
- * Returns 0 on success, -1 on failure.
- */
-static int
-addr_hostmask(int af, u_int l, struct xaddr *n)
-{
- if (addr_netmask(af, l, n) == -1 || addr_invert(n) == -1)
- return (-1);
- return (0);
-}
-
-/*
- * Test whether address 'a' is all zeros (i.e. 0.0.0.0 or ::)
- * Returns 0 on if address is all-zeros, -1 if not all zeros or on failure.
- */
-static int
-addr_is_all0s(const struct xaddr *a)
-{
- int i;
-
- switch (a->af) {
- case AF_INET:
- return (a->v4.s_addr == 0 ? 0 : -1);
- case AF_INET6:;
- for (i = 0; i < 4; i++)
- if (a->addr32[i] != 0)
- return (-1);
- return (0);
- default:
- return (-1);
- }
-}
-
-/*
- * Test whether host portion of address 'a', as determined by 'masklen'
- * is all zeros.
- * Returns 0 on if host portion of address is all-zeros,
- * -1 if not all zeros or on failure.
- */
-static int
-addr_host_is_all0s(const struct xaddr *a, u_int masklen)
-{
- struct xaddr tmp_addr, tmp_mask, tmp_result;
-
- memcpy(&tmp_addr, a, sizeof(tmp_addr));
- if (addr_hostmask(a->af, masklen, &tmp_mask) == -1)
- return (-1);
- if (addr_and(&tmp_result, &tmp_addr, &tmp_mask) == -1)
- return (-1);
- return (addr_is_all0s(&tmp_result));
-}
-
-/*
- * Parse a CIDR address (x.x.x.x/y or xxxx:yyyy::/z).
- * Return -1 on parse error, -2 on inconsistency or 0 on success.
- */
-static int
-addr_pton_cidr(const char *p, struct xaddr *n, u_int *l)
-{
- struct xaddr tmp;
- long unsigned int masklen = 999;
- char addrbuf[64], *mp, *cp;
-
- /* Don't modify argument */
- if (p == NULL || strlcpy(addrbuf, p, sizeof(addrbuf)) >= sizeof(addrbuf))
- return -1;
-
- if ((mp = strchr(addrbuf, '/')) != NULL) {
- *mp = '\0';
- mp++;
- masklen = strtoul(mp, &cp, 10);
- if (*mp == '\0' || *cp != '\0' || masklen > 128)
- return -1;
- }
-
- if (addr_pton(addrbuf, &tmp) == -1)
- return -1;
-
- if (mp == NULL)
- masklen = addr_unicast_masklen(tmp.af);
- if (masklen_valid(tmp.af, masklen) == -1)
- return -2;
- if (addr_host_is_all0s(&tmp, masklen) != 0)
- return -2;
-
- if (n != NULL)
- memcpy(n, &tmp, sizeof(*n));
- if (l != NULL)
- *l = masklen;
-
- return 0;
-}
-
-static int
-addr_netmatch(const struct xaddr *host, const struct xaddr *net, u_int masklen)
-{
- struct xaddr tmp_mask, tmp_result;
-
- if (host->af != net->af)
- return -1;
-
- if (addr_netmask(host->af, masklen, &tmp_mask) == -1)
- return -1;
- if (addr_and(&tmp_result, host, &tmp_mask) == -1)
- return -1;
- return addr_cmp(&tmp_result, net);
-}
-
/*
* Match "addr" against list pattern list "_list", which may contain a
* mix of CIDR addresses and old-school wildcards.
projects / thirdparty / openssh-portable.git / commitdiff
