diff options
Diffstat (limited to 'test/mock-ifaddrs.c')
| -rw-r--r-- | test/mock-ifaddrs.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/test/mock-ifaddrs.c b/test/mock-ifaddrs.c new file mode 100644 index 0000000..87a2e50 --- /dev/null +++ b/test/mock-ifaddrs.c @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: LGPL-2.1-or-later +/** + * This file is part of libnvme. + * Copyright (c) 2023 Martin Belanger, Dell Technologies Inc. + */ +#include <sys/types.h> +#include <ifaddrs.h> +#include <stdlib.h> +#include <stdint.h> +#include <stdbool.h> +#include <string.h> +#include <netinet/in.h> +#include <net/if.h> +#include <arpa/inet.h> + +struct ifaddrs_storage { + struct ifaddrs ifa; + union { + /* Reserve space for the biggest of the sockaddr types */ + struct sockaddr_in s4; + struct sockaddr_in6 s6; + } addr, netmask, broadaddr; + char name[IF_NAMESIZE + 1]; +}; + +static void init_entry(struct ifaddrs_storage *storage, + const char *ifname, + int family, + uint32_t addr1, + uint32_t addr2, + uint32_t addr3, + uint32_t addr4, + bool last) +{ + struct ifaddrs *p; + + p = &storage->ifa; + p->ifa_next = last ? NULL : &storage[1].ifa; + p->ifa_name = storage->name; + strcpy(p->ifa_name, ifname); + p->ifa_flags = 0; + + if (family == AF_INET) { + struct sockaddr_in *ipv4; + + ipv4 = &storage->addr.s4; + ipv4->sin_family = family; + ipv4->sin_port = 0; + ipv4->sin_addr.s_addr = htonl(addr1); + p->ifa_addr = (struct sockaddr *)ipv4; + + ipv4 = &storage->netmask.s4; + ipv4->sin_family = family; + ipv4->sin_port = 0; + ipv4->sin_addr.s_addr = 0xffffff00; + p->ifa_netmask = (struct sockaddr *)ipv4; + + ipv4 = &storage->broadaddr.s4; + ipv4->sin_family = family; + ipv4->sin_port = 0; + ipv4->sin_addr.s_addr = 0; + p->ifa_broadaddr = (struct sockaddr *)ipv4;; + } else { + struct sockaddr_in6 *ipv6; + + ipv6 = &storage->addr.s6; + ipv6->sin6_family = family; + ipv6->sin6_port = 0; + ipv6->sin6_flowinfo = 0; + ipv6->sin6_addr.s6_addr32[0] = htonl(addr1); + ipv6->sin6_addr.s6_addr32[1] = htonl(addr2); + ipv6->sin6_addr.s6_addr32[2] = htonl(addr3); + ipv6->sin6_addr.s6_addr32[3] = htonl(addr4); + ipv6->sin6_scope_id = 0; + p->ifa_addr = (struct sockaddr *)ipv6; + + ipv6 = &storage->netmask.s6; + ipv6->sin6_family = family; + ipv6->sin6_port = 0; + ipv6->sin6_flowinfo = 0; + ipv6->sin6_addr.s6_addr32[0] = 0xffffffff; + ipv6->sin6_addr.s6_addr32[1] = 0xffffffff; + ipv6->sin6_addr.s6_addr32[2] = 0xffffffff; + ipv6->sin6_addr.s6_addr32[3] = 0; + ipv6->sin6_scope_id = 0; + p->ifa_netmask = (struct sockaddr *)ipv6; + + ipv6 = &storage->broadaddr.s6; + ipv6->sin6_family = family; + ipv6->sin6_port = 0; + ipv6->sin6_flowinfo = 0; + ipv6->sin6_addr.s6_addr32[0] = 0; + ipv6->sin6_addr.s6_addr32[1] = 0; + ipv6->sin6_addr.s6_addr32[2] = 0; + ipv6->sin6_addr.s6_addr32[3] = 0; + ipv6->sin6_scope_id = 0; + p->ifa_broadaddr = (struct sockaddr *)ipv6; + } + + p->ifa_data = NULL; +} + +int getifaddrs(struct ifaddrs **ifap) { + struct ifaddrs_storage *storage; + + /* Allocate memory for 4 interfaces */ + storage = (struct ifaddrs_storage *)calloc(4, sizeof(struct ifaddrs_storage)); + *ifap = &storage[0].ifa; + + init_entry(&storage[0], "eth0", AF_INET, 0xc0a80114, 0, 0, 0, false); /* 192.168.1.20 */ + init_entry(&storage[1], "eth0", AF_INET6, 0xfe800000, 0, 0, 0xdeadbeef, false); /* fe80::dead:beef */ + + /* Loopback interface */ + init_entry(&storage[2], "lo", AF_INET, 0x7f000001, 0, 0, 0, false); /* 127.0.0.1 */ + init_entry(&storage[3], "lo", AF_INET6, 0, 0, 0, 1, true); /* ::1 */ + + return 0; +} + +void freeifaddrs(struct ifaddrs *ifa) { + free(ifa); +} + |