src/libsystemd-network/network-internal.c

	network-internal.c revision c6f7c917a1b494d4455800823472227463f87438
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek/***
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek This file is part of systemd.
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek Copyright (C) 2013 Tom Gundersen <teg@jklm.no>
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  systemd is free software; you can redistribute it and/or modify it
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  under the terms of the GNU Lesser General Public License as published by
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  the Free Software Foundation; either version 2.1 of the License, or
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  (at your option) any later version.
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  systemd is distributed in the hope that it will be useful, but
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  WITHOUT ANY WARRANTY; without even the implied warranty of
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  Lesser General Public License for more details.
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  You should have received a copy of the GNU Lesser General Public License
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek  along with systemd; If not, see <http://www.gnu.org/licenses/>.
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek***/
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include <netinet/ether.h>
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include <linux/if.h>
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include <arpa/inet.h>
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include <fnmatch.h>
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include "strv.h"
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include "siphash24.h"
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include "libudev-private.h"
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include "network-internal.h"
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include "log.h"
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include "utf8.h"
50c9d542e8bf641412debaa82a4dcf67ddb72258Lukas Slebodnik#include "util.h"
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include "conf-parser.h"
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#include "condition.h"
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozekint net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8]) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        size_t l, sz = 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        const char *name, *field = NULL;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        int r;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        uint8_t *v;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        /* fetch some persistent data unique (on this machine) to this device */
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        FOREACH_STRING(field, "ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT", "ID_NET_NAME_PATH", "ID_NET_NAME_MAC") {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                name = udev_device_get_property_value(device, field);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                if (name)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        break;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        }
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (!name)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return -ENOENT;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        l = strlen(name);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        sz = sizeof(sd_id128_t) + l;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        v = alloca(sz);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        /* fetch some persistent data unique to this machine */
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        r = sd_id128_get_machine((sd_id128_t*) v);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (r < 0)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                 return r;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        memcpy(v + sizeof(sd_id128_t), name, l);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        /* Let's hash the machine ID plus the device name. We
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        * use a fixed, but originally randomly created hash
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        * key here. */
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        siphash24(result, v, sz, HASH_KEY.bytes);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek}
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozekbool net_match_config(const struct ether_addr *match_mac,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *match_path,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *match_driver,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *match_type,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *match_name,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      Condition *match_host,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      Condition *match_virt,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      Condition *match_kernel,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      Condition *match_arch,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *dev_mac,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *dev_path,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *dev_parent_driver,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *dev_driver,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *dev_type,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                      const char *dev_name) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (match_host && !condition_test_host(match_host))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (match_virt && !condition_test_virtualization(match_virt))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (match_kernel && !condition_test_kernel_command_line(match_kernel))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (match_arch && !condition_test_architecture(match_arch))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (match_mac && (!dev_mac || memcmp(match_mac, ether_aton(dev_mac), ETH_ALEN)))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (match_path && (!dev_path || fnmatch(match_path, dev_path, 0)))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (match_driver) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                if (dev_parent_driver && !streq(match_driver, dev_parent_driver))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                else if (!streq_ptr(match_driver, dev_driver))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        }
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (match_type && !streq_ptr(match_type, dev_type))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (match_name && (!dev_name || fnmatch(match_name, dev_name, 0)))
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        return 1;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek}
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozekunsigned net_netmask_to_prefixlen(const struct in_addr *addr) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(addr);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        return 32 - u32ctz(be32toh(addr->s_addr));
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek}
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozekint config_parse_net_condition(const char *unit,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                               const char *filename,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                               unsigned line,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                               const char *section,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                               unsigned section_line,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                               const char *lvalue,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                               int ltype,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                               const char *rvalue,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                               void *data,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                               void *userdata) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        ConditionType cond = ltype;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        Condition **ret = data;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        bool negate;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        Condition *c;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        _cleanup_free_ char *s = NULL;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(filename);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(lvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(rvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(data);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        negate = rvalue[0] == '!';
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (negate)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                rvalue++;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        s = strdup(rvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (!s)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return log_oom();
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        c = condition_new(cond, s, false, negate);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (!c)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return log_oom();
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (*ret)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                condition_free(*ret);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        *ret = c;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek}
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozekint config_parse_ifname(const char *unit,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        const char *filename,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        unsigned line,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        const char *section,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        unsigned section_line,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        const char *lvalue,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        int ltype,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        const char *rvalue,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        void *data,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        void *userdata) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        char **s = data;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        char *n;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(filename);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(lvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(rvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(data);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        n = strdup(rvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (!n)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return log_oom();
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (!ascii_is_valid(n) || strlen(n) >= IFNAMSIZ) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                           "Interface name is not ASCII clean or is too long, ignoring assignment: %s", rvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                free(n);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        }
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        free(*s);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (*n)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                *s = n;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        else {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                free(n);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                *s = NULL;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        }
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek}
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozekint config_parse_ifalias(const char *unit,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                         const char *filename,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                         unsigned line,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                         const char *section,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                         unsigned section_line,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                         const char *lvalue,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                         int ltype,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                         const char *rvalue,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                         void *data,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                         void *userdata) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        char **s = data;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        char *n;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
a95c006f748fa9df0dd81509b51974133d2786afLukas Slebodnik        assert(filename);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(lvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(rvalue);
919cfb623e9b725eaa654c6e1b513d1305057314Jakub Hrozek        assert(data);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        n = strdup(rvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (!n)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return log_oom();
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (!ascii_is_valid(n) || strlen(n) >= IFALIASZ) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                           "Interface alias is not ASCII clean or is too long, ignoring assignment: %s", rvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                free(n);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        }
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        free(*s);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (*n)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                *s = n;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        else {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                free(n);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                *s = NULL;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        }
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek}
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozekint config_parse_hwaddr(const char *unit,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        const char *filename,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        unsigned line,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        const char *section,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        unsigned section_line,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        const char *lvalue,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        int ltype,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        const char *rvalue,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        void *data,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        void *userdata) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        struct ether_addr **hwaddr = data;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        struct ether_addr *n;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        int r;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(filename);
4e5e846de22407f825fe3b4040d79606818a2419Jakub Hrozek        assert(lvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(rvalue);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(data);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        n = new0(struct ether_addr, 1);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (!n)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return log_oom();
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        r = sscanf(rvalue, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                   &n->ether_addr_octet[0],
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                   &n->ether_addr_octet[1],
4e5e846de22407f825fe3b4040d79606818a2419Jakub Hrozek                   &n->ether_addr_octet[2],
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                   &n->ether_addr_octet[3],
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                   &n->ether_addr_octet[4],
4e5e846de22407f825fe3b4040d79606818a2419Jakub Hrozek                   &n->ether_addr_octet[5]);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        if (r != 6) {
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                           "Not a valid MAC address, ignoring assignment: %s", rvalue);
4e5e846de22407f825fe3b4040d79606818a2419Jakub Hrozek                free(n);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        }
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        free(*hwaddr);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        *hwaddr = n;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek}
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozekint net_parse_inaddr(const char *address, unsigned char *family, void *dst) {
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek        int r;
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek        assert(address);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(family);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        assert(dst);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek        /* IPv4 */
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek        r = inet_pton(AF_INET, address, dst);
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek        if (r > 0) {
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                /* succsefully parsed IPv4 address */
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                if (*family == AF_UNSPEC)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        *family = AF_INET;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                else if (*family != AF_INET)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        return -EINVAL;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        } else  if (r < 0)
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                return -errno;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        else {
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                /* not an IPv4 address, so let's try IPv6 */
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                r = inet_pton(AF_INET6, address, dst);
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                if (r > 0) {
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                        /* successfully parsed IPv6 address */
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                        if (*family == AF_UNSPEC)
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                                *family = AF_INET6;
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                        else if (*family != AF_INET6)
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                                return -EINVAL;
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                } else if (r < 0)
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                        return -errno;
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek                else
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek                        return -EINVAL;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        }
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek        return 0;
90afedb00608547ae1f32aa7aafd552c4b306909Jakub Hrozek}
b3d110fbc424a03674a6e50e489a7cbab9702f0bJakub Hrozek