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Diffstat (limited to 'src/libsystemd-network/network-internal.c')
| -rw-r--r-- | src/libsystemd-network/network-internal.c | 556 |
1 files changed, 0 insertions, 556 deletions
diff --git a/src/libsystemd-network/network-internal.c b/src/libsystemd-network/network-internal.c deleted file mode 100644 index 9d78b953fc..0000000000 --- a/src/libsystemd-network/network-internal.c +++ /dev/null @@ -1,556 +0,0 @@ -/*** - This file is part of systemd. - - Copyright (C) 2013 Tom Gundersen <teg@jklm.no> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <arpa/inet.h> -#include <linux/if.h> -#include <netinet/ether.h> - -#include "sd-ndisc.h" - -#include "alloc-util.h" -#include "condition.h" -#include "conf-parser.h" -#include "dhcp-lease-internal.h" -#include "ether-addr-util.h" -#include "hexdecoct.h" -#include "log.h" -#include "network-internal.h" -#include "parse-util.h" -#include "siphash24.h" -#include "socket-util.h" -#include "string-util.h" -#include "strv.h" -#include "utf8.h" -#include "util.h" - -const char *net_get_name(struct udev_device *device) { - const char *name, *field; - - assert(device); - - /* fetch some persistent data unique (on this machine) to this device */ - FOREACH_STRING(field, "ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT", "ID_NET_NAME_PATH", "ID_NET_NAME_MAC") { - name = udev_device_get_property_value(device, field); - if (name) - return name; - } - - return NULL; -} - -#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a) - -int net_get_unique_predictable_data(struct udev_device *device, uint64_t *result) { - size_t l, sz = 0; - const char *name = NULL; - int r; - uint8_t *v; - - assert(device); - - name = net_get_name(device); - if (!name) - return -ENOENT; - - l = strlen(name); - sz = sizeof(sd_id128_t) + l; - v = alloca(sz); - - /* fetch some persistent data unique to this machine */ - r = sd_id128_get_machine((sd_id128_t*) v); - if (r < 0) - return r; - memcpy(v + sizeof(sd_id128_t), name, l); - - /* Let's hash the machine ID plus the device name. We - * use a fixed, but originally randomly created hash - * key here. */ - *result = htole64(siphash24(v, sz, HASH_KEY.bytes)); - - return 0; -} - -bool net_match_config(const struct ether_addr *match_mac, - char * const *match_paths, - char * const *match_drivers, - char * const *match_types, - char * const *match_names, - Condition *match_host, - Condition *match_virt, - Condition *match_kernel, - Condition *match_arch, - const struct ether_addr *dev_mac, - const char *dev_path, - const char *dev_parent_driver, - const char *dev_driver, - const char *dev_type, - const char *dev_name) { - - if (match_host && condition_test(match_host) <= 0) - return false; - - if (match_virt && condition_test(match_virt) <= 0) - return false; - - if (match_kernel && condition_test(match_kernel) <= 0) - return false; - - if (match_arch && condition_test(match_arch) <= 0) - return false; - - if (match_mac && (!dev_mac || memcmp(match_mac, dev_mac, ETH_ALEN))) - return false; - - if (!strv_isempty(match_paths) && - (!dev_path || !strv_fnmatch(match_paths, dev_path, 0))) - return false; - - if (!strv_isempty(match_drivers) && - (!dev_driver || !strv_fnmatch(match_drivers, dev_driver, 0))) - return false; - - if (!strv_isempty(match_types) && - (!dev_type || !strv_fnmatch_or_empty(match_types, dev_type, 0))) - return false; - - if (!strv_isempty(match_names) && - (!dev_name || !strv_fnmatch_or_empty(match_names, dev_name, 0))) - return false; - - return true; -} - -int config_parse_net_condition(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ConditionType cond = ltype; - Condition **ret = data; - bool negate; - Condition *c; - _cleanup_free_ char *s = NULL; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - negate = rvalue[0] == '!'; - if (negate) - rvalue++; - - s = strdup(rvalue); - if (!s) - return log_oom(); - - c = condition_new(cond, s, false, negate); - if (!c) - return log_oom(); - - if (*ret) - condition_free(*ret); - - *ret = c; - return 0; -} - -int config_parse_ifnames( - const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - char ***sv = data; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - for (;;) { - _cleanup_free_ char *word = NULL; - - r = extract_first_word(&rvalue, &word, NULL, 0); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse interface name list: %s", rvalue); - return 0; - } - if (r == 0) - break; - - if (!ifname_valid(word)) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Interface name is not valid or too long, ignoring assignment: %s", rvalue); - return 0; - } - - r = strv_push(sv, word); - if (r < 0) - return log_oom(); - - word = NULL; - } - - return 0; -} - -int config_parse_ifalias(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - char **s = data; - _cleanup_free_ char *n = NULL; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - n = strdup(rvalue); - if (!n) - return log_oom(); - - if (!ascii_is_valid(n) || strlen(n) >= IFALIASZ) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Interface alias is not ASCII clean or is too long, ignoring assignment: %s", rvalue); - return 0; - } - - free(*s); - if (*n) { - *s = n; - n = NULL; - } else - *s = NULL; - - return 0; -} - -int config_parse_hwaddr(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - struct ether_addr **hwaddr = data; - struct ether_addr *n; - const char *start; - size_t offset; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - n = new0(struct ether_addr, 1); - if (!n) - return log_oom(); - - start = rvalue + strspn(rvalue, WHITESPACE); - r = ether_addr_from_string(start, n, &offset); - - if (r || (start[offset + strspn(start + offset, WHITESPACE)] != '\0')) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Not a valid MAC address, ignoring assignment: %s", rvalue); - free(n); - return 0; - } - - free(*hwaddr); - *hwaddr = n; - - return 0; -} - -int config_parse_iaid(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - uint32_t iaid; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - r = safe_atou32(rvalue, &iaid); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, r, - "Unable to read IAID, ignoring assignment: %s", rvalue); - return 0; - } - - *((uint32_t *)data) = iaid; - - return 0; -} - -void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size) { - unsigned i; - - assert(f); - assert(addresses); - assert(size); - - for (i = 0; i < size; i++) - fprintf(f, "%s%s", inet_ntoa(addresses[i]), - (i < (size - 1)) ? " ": ""); -} - -int deserialize_in_addrs(struct in_addr **ret, const char *string) { - _cleanup_free_ struct in_addr *addresses = NULL; - int size = 0; - - assert(ret); - assert(string); - - for (;;) { - _cleanup_free_ char *word = NULL; - struct in_addr *new_addresses; - int r; - - r = extract_first_word(&string, &word, NULL, 0); - if (r < 0) - return r; - if (r == 0) - break; - - new_addresses = realloc(addresses, (size + 1) * sizeof(struct in_addr)); - if (!new_addresses) - return -ENOMEM; - else - addresses = new_addresses; - - r = inet_pton(AF_INET, word, &(addresses[size])); - if (r <= 0) - continue; - - size++; - } - - *ret = addresses; - addresses = NULL; - - return size; -} - -void serialize_in6_addrs(FILE *f, const struct in6_addr *addresses, size_t size) { - unsigned i; - - assert(f); - assert(addresses); - assert(size); - - for (i = 0; i < size; i++) { - char buffer[INET6_ADDRSTRLEN]; - - fputs(inet_ntop(AF_INET6, addresses+i, buffer, sizeof(buffer)), f); - - if (i < size - 1) - fputc(' ', f); - } -} - -int deserialize_in6_addrs(struct in6_addr **ret, const char *string) { - _cleanup_free_ struct in6_addr *addresses = NULL; - int size = 0; - - assert(ret); - assert(string); - - for (;;) { - _cleanup_free_ char *word = NULL; - struct in6_addr *new_addresses; - int r; - - r = extract_first_word(&string, &word, NULL, 0); - if (r < 0) - return r; - if (r == 0) - break; - - new_addresses = realloc(addresses, (size + 1) * sizeof(struct in6_addr)); - if (!new_addresses) - return -ENOMEM; - else - addresses = new_addresses; - - r = inet_pton(AF_INET6, word, &(addresses[size])); - if (r <= 0) - continue; - - size++; - } - - *ret = addresses; - addresses = NULL; - - return size; -} - -void serialize_dhcp_routes(FILE *f, const char *key, sd_dhcp_route **routes, size_t size) { - unsigned i; - - assert(f); - assert(key); - assert(routes); - assert(size); - - fprintf(f, "%s=", key); - - for (i = 0; i < size; i++) { - struct in_addr dest, gw; - uint8_t length; - - assert_se(sd_dhcp_route_get_destination(routes[i], &dest) >= 0); - assert_se(sd_dhcp_route_get_gateway(routes[i], &gw) >= 0); - assert_se(sd_dhcp_route_get_destination_prefix_length(routes[i], &length) >= 0); - - fprintf(f, "%s/%" PRIu8, inet_ntoa(dest), length); - fprintf(f, ",%s%s", inet_ntoa(gw), (i < (size - 1)) ? " ": ""); - } - - fputs("\n", f); -} - -int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, size_t *ret_allocated, const char *string) { - _cleanup_free_ struct sd_dhcp_route *routes = NULL; - size_t size = 0, allocated = 0; - - assert(ret); - assert(ret_size); - assert(ret_allocated); - assert(string); - - /* WORD FORMAT: dst_ip/dst_prefixlen,gw_ip */ - for (;;) { - _cleanup_free_ char *word = NULL; - char *tok, *tok_end; - unsigned n; - int r; - - r = extract_first_word(&string, &word, NULL, 0); - if (r < 0) - return r; - if (r == 0) - break; - - if (!GREEDY_REALLOC(routes, allocated, size + 1)) - return -ENOMEM; - - tok = word; - - /* get the subnet */ - tok_end = strchr(tok, '/'); - if (!tok_end) - continue; - *tok_end = '\0'; - - r = inet_aton(tok, &routes[size].dst_addr); - if (r == 0) - continue; - - tok = tok_end + 1; - - /* get the prefixlen */ - tok_end = strchr(tok, ','); - if (!tok_end) - continue; - - *tok_end = '\0'; - - r = safe_atou(tok, &n); - if (r < 0 || n > 32) - continue; - - routes[size].dst_prefixlen = (uint8_t) n; - tok = tok_end + 1; - - /* get the gateway */ - r = inet_aton(tok, &routes[size].gw_addr); - if (r == 0) - continue; - - size++; - } - - *ret_size = size; - *ret_allocated = allocated; - *ret = routes; - routes = NULL; - - return 0; -} - -int serialize_dhcp_option(FILE *f, const char *key, const void *data, size_t size) { - _cleanup_free_ char *hex_buf = NULL; - - assert(f); - assert(key); - assert(data); - - hex_buf = hexmem(data, size); - if (hex_buf == NULL) - return -ENOMEM; - - fprintf(f, "%s=%s\n", key, hex_buf); - - return 0; -} - -int deserialize_dhcp_option(void **data, size_t *data_len, const char *string) { - assert(data); - assert(data_len); - assert(string); - - if (strlen(string) % 2) - return -EINVAL; - - return unhexmem(string, strlen(string), (void **)data, data_len); -} |