diff options
Diffstat (limited to 'src/shared/net-util.c')
-rw-r--r-- | src/shared/net-util.c | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/src/shared/net-util.c b/src/shared/net-util.c deleted file mode 100644 index 1c223117b8..0000000000 --- a/src/shared/net-util.c +++ /dev/null @@ -1,328 +0,0 @@ -/*-*- 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 <fnmatch.h> - -#include "strv.h" -#include "siphash24.h" -#include "libudev-private.h" -#include "net-util.h" -#include "log.h" -#include "utf8.h" -#include "util.h" -#include "conf-parser.h" -#include "condition.h" - -#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, *field = NULL; - int r; - uint8_t *v; - - /* 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) - break; - } - - 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, - const char *match_path, - const char *match_driver, - const char *match_type, - const char *match_name, - Condition *match_host, - Condition *match_virt, - Condition *match_kernel, - Condition *match_arch, - const char *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_host(match_host)) - return 0; - - if (match_virt && !condition_test_virtualization(match_virt)) - return 0; - - if (match_kernel && !condition_test_kernel_command_line(match_kernel)) - return 0; - - if (match_arch && !condition_test_architecture(match_arch)) - return 0; - - if (match_mac && (!dev_mac || memcmp(match_mac, ether_aton(dev_mac), ETH_ALEN))) - return 0; - - if (match_path && (!dev_path || fnmatch(match_path, dev_path, 0))) - return 0; - - if (match_driver) { - if (dev_parent_driver && !streq(match_driver, dev_parent_driver)) - return 0; - else if (!streq_ptr(match_driver, dev_driver)) - return 0; - } - - if (match_type && !streq_ptr(match_type, dev_type)) - return 0; - - if (match_name && (!dev_name || fnmatch(match_name, dev_name, 0))) - return 0; - - return 1; -} - -unsigned net_netmask_to_prefixlen(const struct in_addr *addr) { - assert(addr); - - return 32 - u32ctz(be32toh(addr->s_addr)); -} - -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; - char *n; - - 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); - free(n); - return 0; - } - - free(*s); - if (*n) - *s = n; - else { - free(n); - *s = 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; - char *n; - - 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); - free(n); - return 0; - } - - free(*s); - if (*n) - *s = n; - else { - free(n); - *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; -} - -int net_parse_inaddr(const char *address, unsigned char *family, void *dst) { - int r; - - assert(address); - assert(family); - assert(dst); - - /* IPv4 */ - r = inet_pton(AF_INET, address, dst); - if (r > 0) { - /* succsefully parsed IPv4 address */ - if (*family == AF_UNSPEC) - *family = AF_INET; - else if (*family != AF_INET) - return -EINVAL; - } else if (r < 0) - return -errno; - else { - /* not an IPv4 address, so let's try IPv6 */ - r = inet_pton(AF_INET6, address, dst); - if (r > 0) { - /* successfully parsed IPv6 address */ - if (*family == AF_UNSPEC) - *family = AF_INET6; - else if (*family != AF_INET6) - return -EINVAL; - } else if (r < 0) - return -errno; - else - return -EINVAL; - } - - return 0; -} |