diff options
Diffstat (limited to 'hicn-light/src/hicn/api/ip_address.h')
| -rw-r--r-- | hicn-light/src/hicn/api/ip_address.h | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/hicn-light/src/hicn/api/ip_address.h b/hicn-light/src/hicn/api/ip_address.h deleted file mode 100644 index f44fb1bc3..000000000 --- a/hicn-light/src/hicn/api/ip_address.h +++ /dev/null @@ -1,228 +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 IP_ADDRESS_H -#define 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 <string.h> // memset - -#include <hicn/api/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 uint8_t u8; -typedef uint16_t u16; -typedef uint32_t u32; -typedef uint64_t u64; - -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 - -/* 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, -}; - -#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, or prefixes (in bits, separated by - * a slash) - */ -static inline int ip_address_pton(const char *ip_address_str, - ip_address_t *ip_address) { - int pton_fd; -#ifdef IP_ADDRESS_PREFIX - char *p; - char *eptr; - u32 dst_len; -#endif /* IP_ADDRESS_PREFIX */ - char *addr = strdup(ip_address_str); - int family; - -#ifdef IP_ADDRESS_PREFIX - p = strchr(addr, '/'); - if (!p) { - dst_len = 0; // until we get the ip address family - } else { - dst_len = strtoul(p + 1, &eptr, 10); - *p = 0; - } -#endif /* IP_ADDRESS_PREFIX */ - - family = ip_address_get_family(addr); - - switch (family) { - case AF_INET6: -#ifdef IP_ADDRESS_PREFIX - if (dst_len > IPV6_ADDR_LEN_BITS) goto ERR; -#endif /* IP_ADDRESS_PREFIX */ - pton_fd = inet_pton(AF_INET6, addr, &ip_address->buffer); - break; - case AF_INET: -#ifdef IP_ADDRESS_PREFIX - if (dst_len > IPV4_ADDR_LEN_BITS) goto ERR; -#endif /* IP_ADDRESS_PREFIX */ - 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; -} - -#endif /* IP_ADDRESS_H */ |