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network: move manager_rtnl_process_address()
This commit is contained in:
Yu Watanabe
parent
d7fbb9f50c
commit
e1fc2c4371
@ -1057,6 +1057,168 @@ int link_set_addresses(Link *link) {
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return 0;
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}
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int manager_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message, Manager *m) {
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_cleanup_free_ char *buf = NULL;
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Link *link = NULL;
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uint16_t type;
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unsigned char flags, prefixlen, scope;
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union in_addr_union in_addr = IN_ADDR_NULL;
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struct ifa_cacheinfo cinfo;
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Address *address = NULL;
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char valid_buf[FORMAT_TIMESPAN_MAX];
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const char *valid_str = NULL;
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int ifindex, family, r;
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assert(rtnl);
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assert(message);
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assert(m);
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if (sd_netlink_message_is_error(message)) {
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r = sd_netlink_message_get_errno(message);
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if (r < 0)
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log_message_warning_errno(message, r, "rtnl: failed to receive address message, ignoring");
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return 0;
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}
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r = sd_netlink_message_get_type(message, &type);
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if (r < 0) {
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log_warning_errno(r, "rtnl: could not get message type, ignoring: %m");
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return 0;
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} else if (!IN_SET(type, RTM_NEWADDR, RTM_DELADDR)) {
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log_warning("rtnl: received unexpected message type %u when processing address, ignoring.", type);
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return 0;
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}
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r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
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if (r < 0) {
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log_warning_errno(r, "rtnl: could not get ifindex from message, ignoring: %m");
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return 0;
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} else if (ifindex <= 0) {
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log_warning("rtnl: received address message with invalid ifindex %d, ignoring.", ifindex);
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return 0;
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}
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r = link_get(m, ifindex, &link);
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if (r < 0 || !link) {
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/* when enumerating we might be out of sync, but we will get the address again, so just
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* ignore it */
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if (!m->enumerating)
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log_warning("rtnl: received address for link '%d' we don't know about, ignoring.", ifindex);
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return 0;
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}
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r = sd_rtnl_message_addr_get_family(message, &family);
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if (r < 0) {
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log_link_warning(link, "rtnl: received address message without family, ignoring.");
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return 0;
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} else if (!IN_SET(family, AF_INET, AF_INET6)) {
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log_link_debug(link, "rtnl: received address message with invalid family '%i', ignoring.", family);
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return 0;
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}
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r = sd_rtnl_message_addr_get_prefixlen(message, &prefixlen);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message with invalid prefixlen, ignoring: %m");
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return 0;
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}
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r = sd_rtnl_message_addr_get_scope(message, &scope);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message with invalid scope, ignoring: %m");
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return 0;
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}
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r = sd_rtnl_message_addr_get_flags(message, &flags);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message with invalid flags, ignoring: %m");
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return 0;
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}
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switch (family) {
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case AF_INET:
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r = sd_netlink_message_read_in_addr(message, IFA_LOCAL, &in_addr.in);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message without valid address, ignoring: %m");
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return 0;
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}
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break;
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case AF_INET6:
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r = sd_netlink_message_read_in6_addr(message, IFA_ADDRESS, &in_addr.in6);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message without valid address, ignoring: %m");
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return 0;
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}
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break;
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default:
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assert_not_reached("Received unsupported address family");
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}
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r = in_addr_to_string(family, &in_addr, &buf);
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if (r < 0)
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log_link_warning_errno(link, r, "Could not print address: %m");
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r = sd_netlink_message_read_cache_info(message, IFA_CACHEINFO, &cinfo);
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if (r < 0 && r != -ENODATA) {
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log_link_warning_errno(link, r, "rtnl: cannot get IFA_CACHEINFO attribute, ignoring: %m");
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return 0;
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} else if (r >= 0 && cinfo.ifa_valid != CACHE_INFO_INFINITY_LIFE_TIME)
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valid_str = format_timespan(valid_buf, FORMAT_TIMESPAN_MAX,
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cinfo.ifa_valid * USEC_PER_SEC,
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USEC_PER_SEC);
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(void) address_get(link, family, &in_addr, prefixlen, &address);
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switch (type) {
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case RTM_NEWADDR:
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if (address)
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log_link_debug(link, "Remembering updated address: %s/%u (valid %s%s)",
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strnull(buf), prefixlen,
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valid_str ? "for " : "forever", strempty(valid_str));
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else {
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/* An address appeared that we did not request */
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r = address_add_foreign(link, family, &in_addr, prefixlen, &address);
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if (r < 0) {
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log_link_warning_errno(link, r, "Failed to remember foreign address %s/%u, ignoring: %m",
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strnull(buf), prefixlen);
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return 0;
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} else
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log_link_debug(link, "Remembering foreign address: %s/%u (valid %s%s)",
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strnull(buf), prefixlen,
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valid_str ? "for " : "forever", strempty(valid_str));
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}
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/* address_update() logs internally, so we don't need to here. */
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r = address_update(address, flags, scope, &cinfo);
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if (r < 0)
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link_enter_failed(link);
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break;
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case RTM_DELADDR:
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if (address) {
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log_link_debug(link, "Forgetting address: %s/%u (valid %s%s)",
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strnull(buf), prefixlen,
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valid_str ? "for " : "forever", strempty(valid_str));
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(void) address_drop(address);
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} else
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log_link_debug(link, "Kernel removed an address we don't remember: %s/%u (valid %s%s), ignoring.",
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strnull(buf), prefixlen,
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valid_str ? "for " : "forever", strempty(valid_str));
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break;
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default:
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assert_not_reached("Received invalid RTNL message type");
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}
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return 1;
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}
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static void static_address_on_acd(sd_ipv4acd *acd, int event, void *userdata) {
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_cleanup_free_ char *pretty = NULL;
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Address *address;
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@ -79,6 +79,8 @@ int link_set_addresses(Link *link);
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int link_drop_addresses(Link *link);
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int link_drop_foreign_addresses(Link *link);
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int manager_rtnl_process_address(sd_netlink *nl, sd_netlink_message *message, Manager *m);
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void address_hash_func(const Address *a, struct siphash *state);
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int address_compare_func(const Address *a1, const Address *a2);
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extern const struct hash_ops address_hash_ops;
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@ -285,168 +285,6 @@ static int manager_connect_udev(Manager *m) {
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return 0;
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}
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int manager_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message, Manager *m) {
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_cleanup_free_ char *buf = NULL;
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Link *link = NULL;
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uint16_t type;
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unsigned char flags, prefixlen, scope;
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union in_addr_union in_addr = IN_ADDR_NULL;
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struct ifa_cacheinfo cinfo;
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Address *address = NULL;
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char valid_buf[FORMAT_TIMESPAN_MAX];
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const char *valid_str = NULL;
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int ifindex, family, r;
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assert(rtnl);
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assert(message);
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assert(m);
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if (sd_netlink_message_is_error(message)) {
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r = sd_netlink_message_get_errno(message);
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if (r < 0)
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log_message_warning_errno(message, r, "rtnl: failed to receive address message, ignoring");
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return 0;
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}
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r = sd_netlink_message_get_type(message, &type);
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if (r < 0) {
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log_warning_errno(r, "rtnl: could not get message type, ignoring: %m");
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return 0;
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} else if (!IN_SET(type, RTM_NEWADDR, RTM_DELADDR)) {
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log_warning("rtnl: received unexpected message type %u when processing address, ignoring.", type);
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return 0;
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}
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r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
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if (r < 0) {
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log_warning_errno(r, "rtnl: could not get ifindex from message, ignoring: %m");
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return 0;
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} else if (ifindex <= 0) {
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log_warning("rtnl: received address message with invalid ifindex %d, ignoring.", ifindex);
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return 0;
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}
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r = link_get(m, ifindex, &link);
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if (r < 0 || !link) {
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/* when enumerating we might be out of sync, but we will get the address again, so just
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* ignore it */
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if (!m->enumerating)
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log_warning("rtnl: received address for link '%d' we don't know about, ignoring.", ifindex);
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return 0;
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}
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r = sd_rtnl_message_addr_get_family(message, &family);
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if (r < 0) {
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log_link_warning(link, "rtnl: received address message without family, ignoring.");
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return 0;
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} else if (!IN_SET(family, AF_INET, AF_INET6)) {
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log_link_debug(link, "rtnl: received address message with invalid family '%i', ignoring.", family);
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return 0;
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}
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r = sd_rtnl_message_addr_get_prefixlen(message, &prefixlen);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message with invalid prefixlen, ignoring: %m");
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return 0;
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}
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r = sd_rtnl_message_addr_get_scope(message, &scope);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message with invalid scope, ignoring: %m");
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return 0;
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}
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r = sd_rtnl_message_addr_get_flags(message, &flags);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message with invalid flags, ignoring: %m");
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return 0;
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}
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switch (family) {
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case AF_INET:
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r = sd_netlink_message_read_in_addr(message, IFA_LOCAL, &in_addr.in);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message without valid address, ignoring: %m");
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return 0;
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}
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break;
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case AF_INET6:
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r = sd_netlink_message_read_in6_addr(message, IFA_ADDRESS, &in_addr.in6);
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if (r < 0) {
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log_link_warning_errno(link, r, "rtnl: received address message without valid address, ignoring: %m");
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return 0;
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}
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break;
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default:
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assert_not_reached("Received unsupported address family");
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}
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r = in_addr_to_string(family, &in_addr, &buf);
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if (r < 0)
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log_link_warning_errno(link, r, "Could not print address: %m");
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r = sd_netlink_message_read_cache_info(message, IFA_CACHEINFO, &cinfo);
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if (r < 0 && r != -ENODATA) {
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log_link_warning_errno(link, r, "rtnl: cannot get IFA_CACHEINFO attribute, ignoring: %m");
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return 0;
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} else if (r >= 0 && cinfo.ifa_valid != CACHE_INFO_INFINITY_LIFE_TIME)
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valid_str = format_timespan(valid_buf, FORMAT_TIMESPAN_MAX,
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cinfo.ifa_valid * USEC_PER_SEC,
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USEC_PER_SEC);
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(void) address_get(link, family, &in_addr, prefixlen, &address);
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switch (type) {
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case RTM_NEWADDR:
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if (address)
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log_link_debug(link, "Remembering updated address: %s/%u (valid %s%s)",
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strnull(buf), prefixlen,
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valid_str ? "for " : "forever", strempty(valid_str));
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else {
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/* An address appeared that we did not request */
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r = address_add_foreign(link, family, &in_addr, prefixlen, &address);
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if (r < 0) {
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log_link_warning_errno(link, r, "Failed to remember foreign address %s/%u, ignoring: %m",
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strnull(buf), prefixlen);
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return 0;
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} else
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log_link_debug(link, "Remembering foreign address: %s/%u (valid %s%s)",
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strnull(buf), prefixlen,
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valid_str ? "for " : "forever", strempty(valid_str));
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}
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/* address_update() logs internally, so we don't need to here. */
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r = address_update(address, flags, scope, &cinfo);
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if (r < 0)
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link_enter_failed(link);
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break;
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case RTM_DELADDR:
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if (address) {
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log_link_debug(link, "Forgetting address: %s/%u (valid %s%s)",
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strnull(buf), prefixlen,
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valid_str ? "for " : "forever", strempty(valid_str));
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(void) address_drop(address);
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} else
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log_link_debug(link, "Kernel removed an address we don't remember: %s/%u (valid %s%s), ignoring.",
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strnull(buf), prefixlen,
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valid_str ? "for " : "forever", strempty(valid_str));
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break;
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default:
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assert_not_reached("Received invalid RTNL message type");
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}
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return 1;
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}
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static int manager_rtnl_process_link(sd_netlink *rtnl, sd_netlink_message *message, Manager *m) {
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Link *link = NULL;
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NetDev *netdev = NULL;
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@ -84,8 +84,6 @@ bool manager_should_reload(Manager *m);
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int manager_enumerate(Manager *m);
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int manager_rtnl_process_address(sd_netlink *nl, sd_netlink_message *message, Manager *m);
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void manager_dirty(Manager *m);
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int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found);
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