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Diffstat (limited to 'ctrl/facemgr/src/util/ip_address.h')
| -rw-r--r-- | ctrl/facemgr/src/util/ip_address.h | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/ctrl/facemgr/src/util/ip_address.h b/ctrl/facemgr/src/util/ip_address.h deleted file mode 100644 index 243ce048b..000000000 --- a/ctrl/facemgr/src/util/ip_address.h +++ /dev/null @@ -1,328 +0,0 @@ -/* - * Copyright (c) 2017-2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/** - * \file ip_address.h - * \brief IP address type support - */ -#ifndef UTIL_IP_ADDRESS_H -#define UTIL_IP_ADDRESS_H - -#include <arpa/inet.h> // inet_ntop -#ifdef __APPLE__ -#include <libkern/OSByteOrder.h> -#define __bswap_constant_32(x) OSSwapInt32(x) -#include <machine/endian.h> -#else -#include <endian.h> -#ifdef __ANDROID__ -#include <byteswap.h> -#endif -#endif -#include <errno.h> -#include <netdb.h> // struct addrinfo -#include <netinet/in.h> // INET*_ADDRSTRLEN, IN*ADDR_LOOPBACK -#include <stdlib.h> -#include <stdio.h> // snprintf -#include <string.h> // memset - -#include "types.h" - -#define bytes_to_bits(x) (x * 8) -#define IPV6_ADDR_LEN 16 /* bytes */ -#define IPV4_ADDR_LEN 4 /* bytes */ -#define IPV6_ADDR_LEN_BITS bytes_to_bits(IPV6_ADDR_LEN) -#define IPV4_ADDR_LEN_BITS bytes_to_bits(IPV4_ADDR_LEN) - -#define IP_MAX_ADDR_LEN IPV6_ADDR_LEN - -#define DUMMY_PORT 1234 - -typedef union { - union { - struct in_addr as_inaddr; - u8 as_u8[4]; - u16 as_u16[2]; - u32 as_u32; - } v4; - union { - struct in6_addr as_in6addr; - u8 as_u8[16]; - u16 as_u16[8]; - u32 as_u32[4]; - u64 as_u64[2]; - } v6; - u8 buffer[IP_MAX_ADDR_LEN]; - u8 as_u8[IP_MAX_ADDR_LEN]; - u16 as_u16[IP_MAX_ADDR_LEN >> 1]; - u32 as_u32[IP_MAX_ADDR_LEN >> 2]; - u64 as_u64[IP_MAX_ADDR_LEN >> 3]; -} ip_address_t; - -#define MAXSZ_IP4_ADDRESS_ INET_ADDRSTRLEN - 1 -#define MAXSZ_IP6_ADDRESS_ INET6_ADDRSTRLEN - 1 -#define MAXSZ_IP_ADDRESS_ MAXSZ_IP6_ADDRESS_ -#define MAXSZ_IP4_ADDRESS MAXSZ_IP4_ADDRESS_ + 1 -#define MAXSZ_IP6_ADDRESS MAXSZ_IP6_ADDRESS_ + 1 -#define MAXSZ_IP_ADDRESS MAXSZ_IP_ADDRESS_ + 1 - -typedef struct { - int family; - ip_address_t address; - u8 len; -} ip_prefix_t; - -#define MAXSZ_PREFIX_ MAXSZ_IP_ADDRESS_ + 1 + 3 -#define MAXSZ_PREFIX MAXSZ_PREFIX_ + 1 - -/* No htonl() with const */ -static const ip_address_t IPV4_LOOPBACK = { -#if __BYTE_ORDER == __LITTLE_ENDIAN -#ifdef __ANDROID__ - .v4.as_inaddr.s_addr = bswap_32(INADDR_LOOPBACK), -#else - .v4.as_inaddr.s_addr = __bswap_constant_32(INADDR_LOOPBACK), -#endif -#else - .v4.as_inaddr.s_addr = INADDR_LOOPBACK, -#endif -}; - -static const ip_address_t IPV6_LOOPBACK = { - .v6.as_in6addr = IN6ADDR_LOOPBACK_INIT, -}; - -static const ip_address_t IPV4_ANY = { - .v4.as_inaddr.s_addr = INADDR_ANY, -}; - -static const ip_address_t IPV6_ANY = { - .v6.as_in6addr = IN6ADDR_ANY_INIT, -}; - -#define IP_ANY(family) (family == AF_INET) ? IPV4_ANY : IPV6_ANY - -static const ip_address_t IP_ADDRESS_EMPTY = { - .as_u64 = { 0 }, -}; - - -#define MAX_PORT 1 << (8 * sizeof(u16)) -#define IS_VALID_PORT(x) ((x > 0) && (x < MAX_PORT)) - -#define MAXSZ_PORT_ 5 -#define MAXSZ_PORT MAXSZ_PORT_ + 1 - -#define IS_VALID_FAMILY(x) ((x == AF_INET) || (x == AF_INET6)) - -static inline -int -ip_address_get_family (const char * ip_address) -{ - struct addrinfo hint, *res = NULL; - int rc; - - memset (&hint, '\0', sizeof hint); - - hint.ai_family = PF_UNSPEC; - hint.ai_flags = AI_NUMERICHOST; - - rc = getaddrinfo (ip_address, NULL, &hint, &res); - if (rc) - { - return -1; - } - rc = res->ai_family; - freeaddrinfo (res); - return rc; -} - -static inline -int -ip_address_len (const ip_address_t * ip_address, int family) -{ - return (family == AF_INET6) ? IPV6_ADDR_LEN : - (family == AF_INET) ? IPV4_ADDR_LEN : 0; -} - -static inline -int -ip_address_ntop (const ip_address_t * ip_address, char *dst, const size_t len, - int family) -{ - const char * s = inet_ntop (family, ip_address->buffer, dst, len); - return (s ? 1 : -1); -} - -/* - * Parse ip addresses in presentation format - */ -static inline -int -ip_address_pton (const char *ip_address_str, ip_address_t * ip_address) -{ - int pton_fd; - char *addr = strdup (ip_address_str); - int family; - - - family = ip_address_get_family (addr); - - switch (family) - { - case AF_INET6: - pton_fd = inet_pton (AF_INET6, addr, &ip_address->buffer); - break; - case AF_INET: - pton_fd = inet_pton (AF_INET, addr, &ip_address->buffer); - break; - default: - goto ERR; - } - - // 0 = not in presentation format - // < 0 = other error (use perror) - if (pton_fd <= 0) - { - goto ERR; - } - - return 1; -ERR: - free (addr); - return -1; -} - - - -static inline -int -ip_address_snprintf(char * s, size_t size, const ip_address_t * ip_address, int family) -{ - size_t len = family == AF_INET ? INET_ADDRSTRLEN : INET6_ADDRSTRLEN; - const char * rc = inet_ntop (family, ip_address->buffer, s, len); - return rc ? strlen(rc) : -1; -} - - -static inline -int -ip_address_to_sockaddr(const ip_address_t * ip_address, - struct sockaddr *sockaddr_address, int family) -{ - struct sockaddr_in6 *tmp6 = (struct sockaddr_in6 *) sockaddr_address; - struct sockaddr_in *tmp4 = (struct sockaddr_in *) sockaddr_address; - - switch (family) - { - case AF_INET6: - tmp6->sin6_family = AF_INET6; - tmp6->sin6_port = DUMMY_PORT; - tmp6->sin6_scope_id = 0; - memcpy (&tmp6->sin6_addr, ip_address->buffer, IPV6_ADDR_LEN); - break; - case AF_INET: - tmp4->sin_family = AF_INET; - tmp4->sin_port = DUMMY_PORT; - memcpy (&tmp4->sin_addr, ip_address->buffer, IPV4_ADDR_LEN); - break; - default: - return -1; - } - - return 1; -} - -static inline -int -ip_address_cmp(const ip_address_t * ip1, const ip_address_t * ip2, int family) -{ - return memcmp(ip1, ip2, ip_address_len(ip1, family)); -} - -static inline -int -ip_address_empty(const ip_address_t * ip) -{ - return (memcmp(ip, &IP_ADDRESS_EMPTY, sizeof(IP_ADDRESS_EMPTY)) == 0); -} - -/* Parse IP Prefixes in presentation format (in bits, separated by a slash) */ -static inline -int -ip_prefix_pton (const char *ip_address_str, ip_prefix_t * ip_prefix) -{ - int pton_fd; - char *p; - char *eptr; - char *addr = strdup (ip_address_str); - - p = strchr (addr, '/'); - if (!p) - { - ip_prefix->len = 0; // until we get the ip address family - } - else - { - ip_prefix->len = strtoul (p + 1, &eptr, 10); - *p = 0; - } - - ip_prefix->family = ip_address_get_family (addr); - - switch (ip_prefix->family) - { - case AF_INET6: - if (ip_prefix->len > IPV6_ADDR_LEN_BITS) - goto ERR; - pton_fd = inet_pton (AF_INET6, addr, &ip_prefix->address.buffer); - break; - case AF_INET: - if (ip_prefix->len > IPV4_ADDR_LEN_BITS) - goto ERR; - pton_fd = inet_pton (AF_INET, addr, &ip_prefix->address.buffer); - break; - default: - goto ERR; - } - - // 0 = not in presentation format - // < 0 = other error (use perror) - if (pton_fd <= 0) - { - goto ERR; - } - - return 1; -ERR: - free (addr); - return -1; -} - -static inline -int -ip_prefix_ntop (const ip_prefix_t * ip_prefix, char *dst, size_t size) -{ - char ip_s[MAXSZ_IP_ADDRESS]; - const char * s = inet_ntop (ip_prefix->family, ip_prefix->address.buffer, ip_s, MAXSZ_IP_ADDRESS); - if (!s) - return -1; - size_t n = snprintf(dst, size, "%s/%d", ip_s, ip_prefix->len); - - return (n > 0 ? 1 : -1); -} - - -#endif /* UTIL_IP_ADDRESS_H */ |