Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <string.h> |
| 4 | #include <unistd.h> |
| 5 | #include <time.h> |
| 6 | |
| 7 | #include <osmocom/core/utils.h> |
| 8 | #include <osmocom/core/application.h> |
| 9 | #include <osmocom/core/logging.h> |
| 10 | |
| 11 | #include "../../lib/in46_addr.h" |
| 12 | #include "../../lib/ippool.h" |
| 13 | #include "../../lib/syserr.h" |
| 14 | |
| 15 | |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 16 | static struct ippool_t *create_pool(const char *prefix_str, unsigned int flags, char **blacklist, size_t blacklist_size) |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 17 | { |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 18 | struct in46_prefix *blacklist_pfx; |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 19 | struct ippool_t *pool; |
| 20 | struct in46_prefix pfx; |
| 21 | size_t t; |
| 22 | int rc; |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 23 | int i; |
| 24 | |
| 25 | blacklist_pfx = calloc(blacklist_size, sizeof(struct in46_prefix)); |
| 26 | for (i = 0; i < blacklist_size; i++) { |
| 27 | rc = ippool_aton(&blacklist_pfx[i].addr, &t, blacklist[i], 0); |
| 28 | OSMO_ASSERT(rc == 0); |
| 29 | pfx.prefixlen = t; |
| 30 | } |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 31 | |
| 32 | /* dynamic-only v4 */ |
| 33 | |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 34 | rc = ippool_aton(&pfx.addr, &t, prefix_str, 0); |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 35 | OSMO_ASSERT(rc == 0); |
| 36 | pfx.prefixlen = t; |
| 37 | |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 38 | rc = ippool_new(&pool, &pfx, NULL, flags, blacklist_pfx, blacklist_size); |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 39 | OSMO_ASSERT(rc == 0); |
| 40 | |
| 41 | //ippool_printaddr(pool); |
| 42 | |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 43 | free(blacklist_pfx); |
| 44 | |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 45 | return pool; |
| 46 | } |
| 47 | |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 48 | static void test_pool_size(const char *pfx, unsigned int flags, char **blacklist, size_t blacklist_size, unsigned int expected_size) |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 49 | { |
| 50 | struct ippool_t *pool; |
| 51 | struct ippoolm_t *member; |
| 52 | struct in46_addr addr; |
| 53 | int i, rc, n; |
| 54 | |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 55 | printf("testing pool for prefix %s, flags=0x%x, blacklist_size=%lu, expected_size=%u\n", pfx, flags, blacklist_size, expected_size); |
| 56 | pool = create_pool(pfx, flags, blacklist, blacklist_size); |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 57 | OSMO_ASSERT(pool->listsize == expected_size); |
| 58 | |
| 59 | memset(&addr, 0, sizeof(addr)); |
| 60 | addr.len = pool->member[0].addr.len; |
| 61 | |
| 62 | /* allocate all addresses */ |
| 63 | for (i = 0; i < expected_size; i++) { |
| 64 | member = NULL; |
| 65 | rc = ippool_newip(pool, &member, &addr, 0); |
| 66 | OSMO_ASSERT(rc == 0); |
| 67 | OSMO_ASSERT(member); |
| 68 | printf("allocated address %s\n", in46a_ntoa(&member->addr)); |
| 69 | } |
| 70 | /* allocate one more, expect that to fail */ |
| 71 | rc = ippool_newip(pool, &member, &addr, 0); |
| 72 | OSMO_ASSERT(rc < 0); |
| 73 | |
| 74 | /* release a (random) number N of (random) member address */ |
| 75 | n = rand() % pool->listsize; |
| 76 | for (i = 0; i < n; i++) { |
| 77 | int r; |
| 78 | /* chose a random index that is in use */ |
| 79 | do { |
| 80 | r = rand() % pool->listsize; |
| 81 | } while (!pool->member[r].inuse); |
| 82 | /* and free it... */ |
| 83 | rc = ippool_freeip(pool, &pool->member[r]); |
| 84 | OSMO_ASSERT(rc == 0); |
| 85 | } |
| 86 | |
| 87 | /* allocate all N previously released addresses */ |
| 88 | for (i = 0; i < n; i++) { |
| 89 | member = NULL; |
| 90 | rc = ippool_newip(pool, &member, &addr, 0); |
| 91 | OSMO_ASSERT(rc == 0); |
| 92 | OSMO_ASSERT(member); |
| 93 | } |
| 94 | |
| 95 | /* allocate one more, expect that to fail */ |
| 96 | rc = ippool_newip(pool, &member, &addr, 0); |
| 97 | OSMO_ASSERT(rc < 0); |
| 98 | |
| 99 | ippool_free(pool); |
| 100 | } |
| 101 | |
| 102 | static void test_pool_sizes(void) |
| 103 | { |
Pau Espin Pedrol | 361cb9e | 2017-10-13 11:56:16 +0200 | [diff] [blame] | 104 | /* 256 addresses [0..255] */ |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 105 | test_pool_size("192.168.23.0/24", 0, NULL, 0, 256); |
Pau Espin Pedrol | 361cb9e | 2017-10-13 11:56:16 +0200 | [diff] [blame] | 106 | |
| 107 | /* 255 addresses [1..255] */ |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 108 | test_pool_size("192.168.23.0/24", IPPOOL_NONETWORK, NULL, 0, 255); |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 109 | |
| 110 | /* 254 addresses [1..254] */ |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 111 | test_pool_size("192.168.23.0/24", IPPOOL_NONETWORK | IPPOOL_NOBROADCAST, NULL, 0, 254); |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 112 | |
Pau Espin Pedrol | 361cb9e | 2017-10-13 11:56:16 +0200 | [diff] [blame] | 113 | /* 65534 addresses [0.1..255.254] */ |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 114 | test_pool_size("192.168.0.0/16", IPPOOL_NONETWORK | IPPOOL_NOBROADCAST, NULL, 0, 65534); |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 115 | |
Pau Espin Pedrol | 361cb9e | 2017-10-13 11:56:16 +0200 | [diff] [blame] | 116 | /* 256 prefixes of /64 each */ |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 117 | test_pool_size("2001:DB8::/56", 0, NULL, 0, 256); |
| 118 | |
| 119 | /* 253 addresses [1..254] & exclude 192.168.23.1/24 */ |
| 120 | char *blacklist[] = {"176.16.222.10/24", "192.168.23.1/24", "192.168.38.2/24"}; |
| 121 | test_pool_size("192.168.23.0/24", IPPOOL_NONETWORK | IPPOOL_NOBROADCAST, blacklist, 3, 253); |
Harald Welte | 1d8ffc6 | 2017-10-12 19:30:49 +0800 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | int main(int argc, char **argv) |
| 125 | { |
| 126 | osmo_init_logging(&log_info); |
| 127 | log_set_use_color(osmo_stderr_target, 0); |
| 128 | log_set_print_filename(osmo_stderr_target, 0); |
| 129 | |
| 130 | srand(time(NULL)); |
| 131 | |
| 132 | test_pool_sizes(); |
| 133 | } |