+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- 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 <netinet/ether.h>
-#include <linux/if.h>
-#include <arpa/inet.h>
-
-#include "strv.h"
-#include "siphash24.h"
-#include "dhcp-lease-internal.h"
-#include "log.h"
-#include "utf8.h"
-#include "util.h"
-#include "conf-parser.h"
-#include "condition.h"
-#include "network-internal.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, uint8_t result[8]) {
- 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. */
- siphash24(result, 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))
- return false;
-
- if (match_virt && !condition_test(match_virt))
- return false;
-
- if (match_kernel && !condition_test(match_kernel))
- return false;
-
- if (match_arch && !condition_test(match_arch))
- 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_ifname(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) >= IFNAMSIZ) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Interface name 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_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;
- const char *word, *state;
- size_t l;
- int r;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- FOREACH_WORD(word, l, rvalue, state) {
- char *n;
-
- n = strndup(word, l);
- if (!n)
- return log_oom();
-
- if (!ascii_is_valid(n) || strlen(n) >= IFNAMSIZ) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Interface name is not ASCII clean or is too long, ignoring assignment: %s", rvalue);
- free(n);
- return 0;
- }
-
- r = strv_consume(sv, n);
- if (r < 0)
- return log_oom();
- }
-
- 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, EINVAL,
- "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;
- int r;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- n = new0(struct ether_addr, 1);
- if (!n)
- return log_oom();
-
- r = sscanf(rvalue, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
- &n->ether_addr_octet[0],
- &n->ether_addr_octet[1],
- &n->ether_addr_octet[2],
- &n->ether_addr_octet[3],
- &n->ether_addr_octet[4],
- &n->ether_addr_octet[5]);
- if (r != 6) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Not a valid MAC address, ignoring assignment: %s", rvalue);
- free(n);
- return 0;
- }
-
- free(*hwaddr);
- *hwaddr = n;
-
- 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;
- const char *word, *state;
- size_t len;
-
- assert(ret);
- assert(string);
-
- FOREACH_WORD(word, len, string, state) {
- _cleanup_free_ char *addr_str = NULL;
- struct in_addr *new_addresses;
- int r;
-
- new_addresses = realloc(addresses, (size + 1) * sizeof(struct in_addr));
- if (!new_addresses)
- return -ENOMEM;
- else
- addresses = new_addresses;
-
- addr_str = strndup(word, len);
- if (!addr_str)
- return -ENOMEM;
-
- r = inet_pton(AF_INET, addr_str, &(addresses[size]));
- if (r <= 0)
- continue;
-
- size ++;
- }
-
- *ret = addresses;
- addresses = NULL;
-
- return size;
-}
-
-int deserialize_in6_addrs(struct in6_addr **ret, const char *string) {
- _cleanup_free_ struct in6_addr *addresses = NULL;
- int size = 0;
- const char *word, *state;
- size_t len;
-
- assert(ret);
- assert(string);
-
- FOREACH_WORD(word, len, string, state) {
- _cleanup_free_ char *addr_str = NULL;
- struct in6_addr *new_addresses;
- int r;
-
- new_addresses = realloc(addresses, (size + 1) * sizeof(struct in6_addr));
- if (!new_addresses)
- return -ENOMEM;
- else
- addresses = new_addresses;
-
- addr_str = strndup(word, len);
- if (!addr_str)
- return -ENOMEM;
-
- r = inet_pton(AF_INET6, addr_str, &(addresses[size]));
- if (r <= 0)
- continue;
-
- size++;
- }
-
- *ret = addresses;
- addresses = NULL;
-
- return size;
-}
-
-void serialize_dhcp_routes(FILE *f, const char *key, struct 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++) {
- fprintf(f, "%s/%" PRIu8, inet_ntoa(routes[i].dst_addr),
- routes[i].dst_prefixlen);
- fprintf(f, ",%s%s", inet_ntoa(routes[i].gw_addr),
- (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;
- const char *word, *state;
- size_t len;
-
- assert(ret);
- assert(ret_size);
- assert(ret_allocated);
- assert(string);
-
- FOREACH_WORD(word, len, string, state) {
- /* WORD FORMAT: dst_ip/dst_prefixlen,gw_ip */
- _cleanup_free_ char* entry = NULL;
- char *tok, *tok_end;
- unsigned n;
- int r;
-
- if (!GREEDY_REALLOC(routes, allocated, size + 1))
- return -ENOMEM;
-
- entry = strndup(word, len);
- if(!entry)
- return -ENOMEM;
-
- tok = entry;
-
- /* 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;
-}
~ianmdlvl / elogind.git / blobdiff