963 lines
30 KiB
C
963 lines
30 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <net/if.h>
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#include "alloc-util.h"
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#include "conf-parser.h"
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#include "firewall-util.h"
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#include "netlink-util.h"
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#include "networkd-address.h"
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#include "networkd-manager.h"
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#include "parse-util.h"
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#include "set.h"
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#include "socket-util.h"
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#include "string-util.h"
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#include "strv.h"
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#include "utf8.h"
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#include "util.h"
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#define ADDRESSES_PER_LINK_MAX 2048U
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#define STATIC_ADDRESSES_PER_NETWORK_MAX 1024U
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int address_new(Address **ret) {
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_cleanup_(address_freep) Address *address = NULL;
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address = new0(Address, 1);
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if (!address)
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return -ENOMEM;
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address->family = AF_UNSPEC;
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address->scope = RT_SCOPE_UNIVERSE;
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address->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME;
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address->cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME;
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*ret = TAKE_PTR(address);
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return 0;
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}
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int address_new_static(Network *network, const char *filename, unsigned section_line, Address **ret) {
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_cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL;
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_cleanup_(address_freep) Address *address = NULL;
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int r;
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assert(network);
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assert(ret);
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assert(!!filename == (section_line > 0));
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if (filename) {
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r = network_config_section_new(filename, section_line, &n);
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if (r < 0)
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return r;
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address = hashmap_get(network->addresses_by_section, n);
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if (address) {
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*ret = TAKE_PTR(address);
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return 0;
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}
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}
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if (network->n_static_addresses >= STATIC_ADDRESSES_PER_NETWORK_MAX)
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return -E2BIG;
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r = address_new(&address);
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if (r < 0)
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return r;
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if (filename) {
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address->section = TAKE_PTR(n);
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r = hashmap_put(network->addresses_by_section, address->section, address);
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if (r < 0)
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return r;
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}
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address->network = network;
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LIST_APPEND(addresses, network->static_addresses, address);
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network->n_static_addresses++;
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*ret = TAKE_PTR(address);
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return 0;
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}
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void address_free(Address *address) {
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if (!address)
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return;
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if (address->network) {
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LIST_REMOVE(addresses, address->network->static_addresses, address);
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assert(address->network->n_static_addresses > 0);
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address->network->n_static_addresses--;
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if (address->section) {
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hashmap_remove(address->network->addresses_by_section, address->section);
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network_config_section_free(address->section);
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}
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}
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if (address->link) {
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set_remove(address->link->addresses, address);
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set_remove(address->link->addresses_foreign, address);
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if (in_addr_equal(AF_INET6, &address->in_addr, (const union in_addr_union *) &address->link->ipv6ll_address))
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memzero(&address->link->ipv6ll_address, sizeof(struct in6_addr));
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}
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free(address);
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}
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static void address_hash_func(const void *b, struct siphash *state) {
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const Address *a = b;
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assert(a);
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siphash24_compress(&a->family, sizeof(a->family), state);
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switch (a->family) {
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case AF_INET:
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siphash24_compress(&a->prefixlen, sizeof(a->prefixlen), state);
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/* peer prefix */
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if (a->prefixlen != 0) {
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uint32_t prefix;
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if (a->in_addr_peer.in.s_addr != 0)
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prefix = be32toh(a->in_addr_peer.in.s_addr) >> (32 - a->prefixlen);
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else
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prefix = be32toh(a->in_addr.in.s_addr) >> (32 - a->prefixlen);
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siphash24_compress(&prefix, sizeof(prefix), state);
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}
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_fallthrough_;
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case AF_INET6:
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/* local address */
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siphash24_compress(&a->in_addr, FAMILY_ADDRESS_SIZE(a->family), state);
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break;
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default:
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/* treat any other address family as AF_UNSPEC */
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break;
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}
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}
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static int address_compare_func(const void *c1, const void *c2) {
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const Address *a1 = c1, *a2 = c2;
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int r;
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r = CMP(a1->family, a2->family);
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if (r != 0)
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return r;
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switch (a1->family) {
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/* use the same notion of equality as the kernel does */
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case AF_INET:
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r = CMP(a1->prefixlen, a2->prefixlen);
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if (r != 0)
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return r;
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/* compare the peer prefixes */
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if (a1->prefixlen != 0) {
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/* make sure we don't try to shift by 32.
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* See ISO/IEC 9899:TC3 § 6.5.7.3. */
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uint32_t b1, b2;
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if (a1->in_addr_peer.in.s_addr != 0)
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b1 = be32toh(a1->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen);
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else
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b1 = be32toh(a1->in_addr.in.s_addr) >> (32 - a1->prefixlen);
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if (a2->in_addr_peer.in.s_addr != 0)
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b2 = be32toh(a2->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen);
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else
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b2 = be32toh(a2->in_addr.in.s_addr) >> (32 - a1->prefixlen);
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r = CMP(b1, b2);
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if (r != 0)
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return r;
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}
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_fallthrough_;
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case AF_INET6:
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return memcmp(&a1->in_addr, &a2->in_addr, FAMILY_ADDRESS_SIZE(a1->family));
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default:
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/* treat any other address family as AF_UNSPEC */
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return 0;
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}
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}
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static const struct hash_ops address_hash_ops = {
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.hash = address_hash_func,
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.compare = address_compare_func
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};
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bool address_equal(Address *a1, Address *a2) {
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if (a1 == a2)
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return true;
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if (!a1 || !a2)
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return false;
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return address_compare_func(a1, a2) == 0;
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}
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static int address_establish(Address *address, Link *link) {
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bool masq;
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int r;
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assert(address);
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assert(link);
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masq = link->network &&
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link->network->ip_masquerade &&
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address->family == AF_INET &&
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address->scope < RT_SCOPE_LINK;
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/* Add firewall entry if this is requested */
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if (address->ip_masquerade_done != masq) {
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union in_addr_union masked = address->in_addr;
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in_addr_mask(address->family, &masked, address->prefixlen);
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r = fw_add_masquerade(masq, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0);
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if (r < 0)
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log_link_warning_errno(link, r, "Could not enable IP masquerading: %m");
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address->ip_masquerade_done = masq;
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}
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return 0;
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}
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static int address_add_internal(Link *link, Set **addresses,
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int family,
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const union in_addr_union *in_addr,
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unsigned char prefixlen,
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Address **ret) {
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_cleanup_(address_freep) Address *address = NULL;
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int r;
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assert(link);
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assert(addresses);
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assert(in_addr);
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r = address_new(&address);
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if (r < 0)
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return r;
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address->family = family;
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address->in_addr = *in_addr;
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address->prefixlen = prefixlen;
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/* Consider address tentative until we get the real flags from the kernel */
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address->flags = IFA_F_TENTATIVE;
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r = set_ensure_allocated(addresses, &address_hash_ops);
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if (r < 0)
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return r;
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r = set_put(*addresses, address);
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if (r < 0)
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return r;
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address->link = link;
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if (ret)
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*ret = address;
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address = NULL;
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return 0;
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}
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int address_add_foreign(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) {
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return address_add_internal(link, &link->addresses_foreign, family, in_addr, prefixlen, ret);
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}
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int address_add(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) {
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Address *address;
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int r;
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r = address_get(link, family, in_addr, prefixlen, &address);
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if (r == -ENOENT) {
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/* Address does not exist, create a new one */
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r = address_add_internal(link, &link->addresses, family, in_addr, prefixlen, &address);
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if (r < 0)
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return r;
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} else if (r == 0) {
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/* Take over a foreign address */
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r = set_ensure_allocated(&link->addresses, &address_hash_ops);
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if (r < 0)
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return r;
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r = set_put(link->addresses, address);
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if (r < 0)
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return r;
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set_remove(link->addresses_foreign, address);
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} else if (r == 1) {
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/* Already exists, do nothing */
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;
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} else
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return r;
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if (ret)
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*ret = address;
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return 0;
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}
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static int address_release(Address *address) {
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int r;
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assert(address);
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assert(address->link);
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/* Remove masquerading firewall entry if it was added */
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if (address->ip_masquerade_done) {
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union in_addr_union masked = address->in_addr;
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in_addr_mask(address->family, &masked, address->prefixlen);
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r = fw_add_masquerade(false, AF_INET, 0, &masked, address->prefixlen, NULL, NULL, 0);
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if (r < 0)
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log_link_warning_errno(address->link, r, "Failed to disable IP masquerading: %m");
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address->ip_masquerade_done = false;
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}
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return 0;
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}
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int address_update(
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Address *address,
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unsigned char flags,
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unsigned char scope,
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const struct ifa_cacheinfo *cinfo) {
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bool ready;
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int r;
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assert(address);
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assert(cinfo);
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assert_return(address->link, 1);
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if (IN_SET(address->link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
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return 1;
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ready = address_is_ready(address);
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address->flags = flags;
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address->scope = scope;
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address->cinfo = *cinfo;
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link_update_operstate(address->link);
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if (!ready && address_is_ready(address)) {
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link_check_ready(address->link);
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if (address->family == AF_INET6 &&
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in_addr_is_link_local(AF_INET6, &address->in_addr) > 0 &&
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in_addr_is_null(AF_INET6, (const union in_addr_union*) &address->link->ipv6ll_address) > 0) {
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r = link_ipv6ll_gained(address->link, &address->in_addr.in6);
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if (r < 0)
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return r;
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}
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}
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return 0;
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}
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int address_drop(Address *address) {
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Link *link;
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bool ready;
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assert(address);
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ready = address_is_ready(address);
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link = address->link;
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address_release(address);
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address_free(address);
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link_update_operstate(link);
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if (link && !ready)
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link_check_ready(link);
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return 0;
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}
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int address_get(Link *link,
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int family,
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const union in_addr_union *in_addr,
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unsigned char prefixlen,
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Address **ret) {
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Address address, *existing;
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assert(link);
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assert(in_addr);
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address = (Address) {
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.family = family,
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.in_addr = *in_addr,
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.prefixlen = prefixlen,
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};
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existing = set_get(link->addresses, &address);
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if (existing) {
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if (ret)
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*ret = existing;
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return 1;
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}
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existing = set_get(link->addresses_foreign, &address);
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if (existing) {
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if (ret)
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*ret = existing;
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return 0;
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}
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return -ENOENT;
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}
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int address_remove(
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Address *address,
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Link *link,
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sd_netlink_message_handler_t callback) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
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int r;
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assert(address);
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assert(IN_SET(address->family, AF_INET, AF_INET6));
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assert(link);
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assert(link->ifindex > 0);
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assert(link->manager);
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assert(link->manager->rtnl);
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r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDR,
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link->ifindex, address->family);
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if (r < 0)
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return log_error_errno(r, "Could not allocate RTM_DELADDR message: %m");
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r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
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if (r < 0)
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return log_error_errno(r, "Could not set prefixlen: %m");
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if (address->family == AF_INET)
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r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
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else if (address->family == AF_INET6)
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r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6);
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if (r < 0)
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return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m");
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r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
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if (r < 0)
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return log_error_errno(r, "Could not send rtnetlink message: %m");
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link_ref(link);
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return 0;
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}
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static int address_acquire(Link *link, Address *original, Address **ret) {
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union in_addr_union in_addr = {};
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struct in_addr broadcast = {};
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_cleanup_(address_freep) Address *na = NULL;
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int r;
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assert(link);
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assert(original);
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assert(ret);
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/* Something useful was configured? just use it */
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if (in_addr_is_null(original->family, &original->in_addr) <= 0)
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return 0;
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/* The address is configured to be 0.0.0.0 or [::] by the user?
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* Then let's acquire something more useful from the pool. */
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r = manager_address_pool_acquire(link->manager, original->family, original->prefixlen, &in_addr);
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if (r < 0)
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return log_link_error_errno(link, r, "Failed to acquire address from pool: %m");
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if (r == 0) {
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log_link_error(link, "Couldn't find free address for interface, all taken.");
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return -EBUSY;
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}
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if (original->family == AF_INET) {
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/* Pick first address in range for ourselves ... */
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in_addr.in.s_addr = in_addr.in.s_addr | htobe32(1);
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/* .. and use last as broadcast address */
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if (original->prefixlen > 30)
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broadcast.s_addr = 0;
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else
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broadcast.s_addr = in_addr.in.s_addr | htobe32(0xFFFFFFFFUL >> original->prefixlen);
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} else if (original->family == AF_INET6)
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in_addr.in6.s6_addr[15] |= 1;
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r = address_new(&na);
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if (r < 0)
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return r;
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na->family = original->family;
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na->prefixlen = original->prefixlen;
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na->scope = original->scope;
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na->cinfo = original->cinfo;
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if (original->label) {
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na->label = strdup(original->label);
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if (!na->label)
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return -ENOMEM;
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}
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na->broadcast = broadcast;
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na->in_addr = in_addr;
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LIST_PREPEND(addresses, link->pool_addresses, na);
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*ret = TAKE_PTR(na);
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return 0;
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}
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int address_configure(
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Address *address,
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Link *link,
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sd_netlink_message_handler_t callback,
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bool update) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
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int r;
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assert(address);
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assert(IN_SET(address->family, AF_INET, AF_INET6));
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assert(link);
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assert(link->ifindex > 0);
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assert(link->manager);
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assert(link->manager->rtnl);
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/* If this is a new address, then refuse adding more than the limit */
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if (address_get(link, address->family, &address->in_addr, address->prefixlen, NULL) <= 0 &&
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set_size(link->addresses) >= ADDRESSES_PER_LINK_MAX)
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return -E2BIG;
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|
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r = address_acquire(link, address, &address);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (update)
|
|
r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req,
|
|
link->ifindex, address->family);
|
|
else
|
|
r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_NEWADDR,
|
|
link->ifindex, address->family);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not allocate RTM_NEWADDR message: %m");
|
|
|
|
r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not set prefixlen: %m");
|
|
|
|
address->flags |= IFA_F_PERMANENT;
|
|
|
|
if (address->home_address)
|
|
address->flags |= IFA_F_HOMEADDRESS;
|
|
|
|
if (address->duplicate_address_detection)
|
|
address->flags |= IFA_F_NODAD;
|
|
|
|
if (address->manage_temporary_address)
|
|
address->flags |= IFA_F_MANAGETEMPADDR;
|
|
|
|
if (address->prefix_route)
|
|
address->flags |= IFA_F_NOPREFIXROUTE;
|
|
|
|
if (address->autojoin)
|
|
address->flags |= IFA_F_MCAUTOJOIN;
|
|
|
|
r = sd_rtnl_message_addr_set_flags(req, (address->flags & 0xff));
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not set flags: %m");
|
|
|
|
if (address->flags & ~0xff) {
|
|
r = sd_netlink_message_append_u32(req, IFA_FLAGS, address->flags);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not set extended flags: %m");
|
|
}
|
|
|
|
r = sd_rtnl_message_addr_set_scope(req, address->scope);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not set scope: %m");
|
|
|
|
if (address->family == AF_INET)
|
|
r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
|
|
else if (address->family == AF_INET6)
|
|
r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m");
|
|
|
|
if (!in_addr_is_null(address->family, &address->in_addr_peer)) {
|
|
if (address->family == AF_INET)
|
|
r = sd_netlink_message_append_in_addr(req, IFA_ADDRESS, &address->in_addr_peer.in);
|
|
else if (address->family == AF_INET6)
|
|
r = sd_netlink_message_append_in6_addr(req, IFA_ADDRESS, &address->in_addr_peer.in6);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not append IFA_ADDRESS attribute: %m");
|
|
} else {
|
|
if (address->family == AF_INET) {
|
|
if (address->prefixlen <= 30) {
|
|
r = sd_netlink_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not append IFA_BROADCAST attribute: %m");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (address->label) {
|
|
r = sd_netlink_message_append_string(req, IFA_LABEL, address->label);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not append IFA_LABEL attribute: %m");
|
|
}
|
|
|
|
r = sd_netlink_message_append_cache_info(req, IFA_CACHEINFO,
|
|
&address->cinfo);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not append IFA_CACHEINFO attribute: %m");
|
|
|
|
r = address_establish(address, link);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
|
|
if (r < 0) {
|
|
address_release(address);
|
|
return log_error_errno(r, "Could not send rtnetlink message: %m");
|
|
}
|
|
|
|
link_ref(link);
|
|
|
|
r = address_add(link, address->family, &address->in_addr, address->prefixlen, NULL);
|
|
if (r < 0) {
|
|
address_release(address);
|
|
return log_error_errno(r, "Could not add address: %m");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_broadcast(
|
|
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) {
|
|
|
|
Network *network = userdata;
|
|
_cleanup_(address_freep) Address *n = NULL;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(section);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = address_new_static(network, filename, section_line, &n);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (n->family == AF_INET6) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Broadcast is not valid for IPv6 addresses, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = in_addr_from_string(AF_INET, rvalue, (union in_addr_union*) &n->broadcast);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Broadcast is invalid, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
n->family = AF_INET;
|
|
n = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_address(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) {
|
|
|
|
Network *network = userdata;
|
|
_cleanup_(address_freep) Address *n = NULL;
|
|
const char *address, *e;
|
|
union in_addr_union buffer;
|
|
int r, f;
|
|
|
|
assert(filename);
|
|
assert(section);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (streq(section, "Network")) {
|
|
/* we are not in an Address section, so treat
|
|
* this as the special '0' section */
|
|
r = address_new_static(network, NULL, 0, &n);
|
|
} else
|
|
r = address_new_static(network, filename, section_line, &n);
|
|
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* Address=address/prefixlen */
|
|
|
|
/* prefixlen */
|
|
e = strchr(rvalue, '/');
|
|
if (e) {
|
|
unsigned i;
|
|
|
|
r = safe_atou(e + 1, &i);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length is invalid, ignoring assignment: %s", e + 1);
|
|
return 0;
|
|
}
|
|
|
|
n->prefixlen = (unsigned char) i;
|
|
|
|
address = strndupa(rvalue, e - rvalue);
|
|
} else
|
|
address = rvalue;
|
|
|
|
r = in_addr_from_string_auto(address, &f, &buffer);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Address is invalid, ignoring assignment: %s", address);
|
|
return 0;
|
|
}
|
|
|
|
if (!e && f == AF_INET) {
|
|
r = in4_addr_default_prefixlen(&buffer.in, &n->prefixlen);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length not specified, and a default one cannot be deduced for '%s', ignoring assignment", address);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (n->family != AF_UNSPEC && f != n->family) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Address is incompatible, ignoring assignment: %s", address);
|
|
return 0;
|
|
}
|
|
|
|
n->family = f;
|
|
|
|
if (streq(lvalue, "Address"))
|
|
n->in_addr = buffer;
|
|
else
|
|
n->in_addr_peer = buffer;
|
|
|
|
if (n->family == AF_INET && n->broadcast.s_addr == 0)
|
|
n->broadcast.s_addr = n->in_addr.in.s_addr | htonl(0xfffffffflu >> n->prefixlen);
|
|
|
|
n = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_label(
|
|
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) {
|
|
|
|
_cleanup_(address_freep) Address *n = NULL;
|
|
Network *network = userdata;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(section);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = address_new_static(network, filename, section_line, &n);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!address_label_valid(rvalue)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Interface label is too long or invalid, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = free_and_strdup(&n->label, rvalue);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
n = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_lifetime(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) {
|
|
Network *network = userdata;
|
|
_cleanup_(address_freep) Address *n = NULL;
|
|
unsigned k;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(section);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = address_new_static(network, filename, section_line, &n);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (STR_IN_SET(rvalue, "forever", "infinity")) {
|
|
n->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME;
|
|
n = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
r = safe_atou(rvalue, &k);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse PreferredLifetime, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (k != 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid PreferredLifetime value, ignoring: %d", k);
|
|
else {
|
|
n->cinfo.ifa_prefered = k;
|
|
n = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_address_flags(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) {
|
|
Network *network = userdata;
|
|
_cleanup_(address_freep) Address *n = NULL;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(section);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = address_new_static(network, filename, section_line, &n);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = parse_boolean(rvalue);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse address flag, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (streq(lvalue, "HomeAddress"))
|
|
n->home_address = r;
|
|
else if (streq(lvalue, "DuplicateAddressDetection"))
|
|
n->duplicate_address_detection = r;
|
|
else if (streq(lvalue, "ManageTemporaryAddress"))
|
|
n->manage_temporary_address = r;
|
|
else if (streq(lvalue, "PrefixRoute"))
|
|
n->prefix_route = r;
|
|
else if (streq(lvalue, "AutoJoin"))
|
|
n->autojoin = r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_address_scope(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) {
|
|
Network *network = userdata;
|
|
_cleanup_(address_freep) Address *n = NULL;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(section);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = address_new_static(network, filename, section_line, &n);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (streq(rvalue, "host"))
|
|
n->scope = RT_SCOPE_HOST;
|
|
else if (streq(rvalue, "link"))
|
|
n->scope = RT_SCOPE_LINK;
|
|
else if (streq(rvalue, "global"))
|
|
n->scope = RT_SCOPE_UNIVERSE;
|
|
else {
|
|
r = safe_atou8(rvalue , &n->scope);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Could not parse address scope \"%s\", ignoring assignment: %m", rvalue);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
n = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool address_is_ready(const Address *a) {
|
|
assert(a);
|
|
|
|
if (a->family == AF_INET6)
|
|
return !(a->flags & IFA_F_TENTATIVE);
|
|
else
|
|
return !(a->flags & (IFA_F_TENTATIVE | IFA_F_DEPRECATED));
|
|
}
|