#include "netlink-util.h"
#include "networkd-address-pool.h"
#include "networkd-address.h"
+#include "networkd-ipv6-proxy-ndp.h"
#include "networkd-manager.h"
#include "networkd-network.h"
#include "parse-util.h"
address->network = network;
address->section = TAKE_PTR(n);
- r = ordered_hashmap_ensure_allocated(&network->addresses_by_section, &network_config_hash_ops);
- if (r < 0)
- return r;
-
- r = ordered_hashmap_put(network->addresses_by_section, address->section, address);
+ r = ordered_hashmap_ensure_put(&network->addresses_by_section, &network_config_hash_ops, address->section, address);
if (r < 0)
return r;
if (!address->link->network)
return 0;
- if (!address->link->network->ip_masquerade)
+ if (address->family == AF_INET &&
+ !FLAGS_SET(address->link->network->ip_masquerade, ADDRESS_FAMILY_IPV4))
return 0;
- if (address->family != AF_INET)
+ if (address->family == AF_INET6 &&
+ !FLAGS_SET(address->link->network->ip_masquerade, ADDRESS_FAMILY_IPV6))
return 0;
if (address->scope >= RT_SCOPE_LINK)
return 0;
- if (address->ip_masquerade_done == add)
+ if (address->family == AF_INET &&
+ address->ip_masquerade_done == add)
+ return 0;
+
+ if (address->family == AF_INET6 &&
+ address->ipv6_masquerade_done == add)
return 0;
masked = address->in_addr;
if (r < 0)
return r;
- r = fw_add_masquerade(add, AF_INET, &masked, address->prefixlen);
+ r = fw_add_masquerade(&address->link->manager->fw_ctx, add, address->family, &masked, address->prefixlen);
if (r < 0)
return r;
- address->ip_masquerade_done = add;
+ if (address->family == AF_INET)
+ address->ip_masquerade_done = add;
+ else if (address->family == AF_INET6)
+ address->ipv6_masquerade_done = add;
return 0;
}
}
static int address_add(Link *link, const Address *in, Address **ret) {
+ bool is_new = false;
Address *address;
int r;
r = address_add_internal(link, &link->addresses, in, &address);
if (r < 0)
return r;
+ is_new = true;
} else if (r == 0) {
/* Take over a foreign address */
r = set_ensure_put(&link->addresses, &address_hash_ops, address);
if (ret)
*ret = address;
-
- return 0;
+ return is_new;
}
static int address_update(Address *address, const Address *src) {
bool ready;
int r;
- assert(address);
+ if (!address)
+ return 0;
ready = address_is_ready(address);
link = address->link;
return address_get(link, a, NULL) >= 0;
}
+static void log_address_debug(const Address *address, const char *str, const Link *link) {
+ assert(address);
+ assert(str);
+ assert(link);
+
+ if (DEBUG_LOGGING) {
+ _cleanup_free_ char *addr = NULL, *peer = NULL;
+ char valid_buf[FORMAT_TIMESPAN_MAX], preferred_buf[FORMAT_TIMESPAN_MAX];
+ const char *valid_str = NULL, *preferred_str = NULL;
+ bool has_peer;
+
+ (void) in_addr_to_string(address->family, &address->in_addr, &addr);
+ has_peer = in_addr_is_null(address->family, &address->in_addr_peer) == 0;
+ if (has_peer)
+ (void) in_addr_to_string(address->family, &address->in_addr_peer, &peer);
+
+ if (address->cinfo.ifa_valid != CACHE_INFO_INFINITY_LIFE_TIME)
+ valid_str = format_timespan(valid_buf, FORMAT_TIMESPAN_MAX,
+ address->cinfo.ifa_valid * USEC_PER_SEC,
+ USEC_PER_SEC);
+
+ if (address->cinfo.ifa_prefered != CACHE_INFO_INFINITY_LIFE_TIME)
+ preferred_str = format_timespan(preferred_buf, FORMAT_TIMESPAN_MAX,
+ address->cinfo.ifa_prefered * USEC_PER_SEC,
+ USEC_PER_SEC);
+
+ log_link_debug(link, "%s address: %s%s%s/%u (valid %s%s, preferred %s%s)",
+ str, strnull(addr), has_peer ? " peer " : "",
+ has_peer ? strnull(peer) : "", address->prefixlen,
+ valid_str ? "for " : "forever", strempty(valid_str),
+ preferred_str ? "for " : "forever", strempty(preferred_str));
+ }
+}
+
static int address_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
return 1;
}
+static int address_set_netlink_message(const Address *address, sd_netlink_message *req, Link *link) {
+ int r;
+
+ assert(address);
+ assert(req);
+ assert(link);
+
+ r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not set prefixlen: %m");
+
+ /* On remove, only IFA_F_MANAGETEMPADDR flag for IPv6 addresses are used. But anyway, set all
+ * flags here unconditionally. Without setting the flag, the template addresses generated by
+ * kernel will not be removed automatically when the main address is removed. */
+ r = sd_rtnl_message_addr_set_flags(req, address->flags & 0xff);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not set flags: %m");
+
+ if ((address->flags & ~0xff) != 0) {
+ r = sd_netlink_message_append_u32(req, IFA_FLAGS, address->flags);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not set extended flags: %m");
+ }
+
+ r = netlink_message_append_in_addr_union(req, IFA_LOCAL, address->family, &address->in_addr);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append IFA_LOCAL attribute: %m");
+
+ return 0;
+}
+
int address_remove(
const Address *address,
Link *link,
assert(link->manager);
assert(link->manager->rtnl);
- if (DEBUG_LOGGING) {
- _cleanup_free_ char *b = NULL;
-
- (void) in_addr_to_string(address->family, &address->in_addr, &b);
- log_link_debug(link, "Removing address %s", strna(b));
- }
+ log_address_debug(address, "Removing", link);
r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDR,
link->ifindex, address->family);
if (r < 0)
return log_link_error_errno(link, r, "Could not allocate RTM_DELADDR message: %m");
- r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not set prefixlen: %m");
-
- r = netlink_message_append_in_addr_union(req, IFA_LOCAL, address->family, &address->in_addr);
+ r = address_set_netlink_message(address, req, link);
if (r < 0)
- return log_link_error_errno(link, r, "Could not append IFA_LOCAL attribute: %m");
+ return r;
r = netlink_call_async(link->manager->rtnl, NULL, req,
callback ?: address_remove_handler,
static int link_enumerate_ipv6_tentative_addresses(Link *link) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
- sd_netlink_message *addr;
int r;
assert(link);
if (r < 0)
return r;
- for (addr = reply; addr; addr = sd_netlink_message_next(addr)) {
+ for (sd_netlink_message *addr = reply; addr; addr = sd_netlink_message_next(addr)) {
unsigned char flags;
int ifindex;
const Address *address,
Link *link,
link_netlink_message_handler_t callback,
- bool update,
Address **ret) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
Address *acquired_address, *a;
- uint32_t flags;
- int r;
+ bool update;
+ int r, k;
assert(address);
assert(IN_SET(address->family, AF_INET, AF_INET6));
if (acquired_address)
address = acquired_address;
- if (DEBUG_LOGGING) {
- _cleanup_free_ char *str = NULL;
+ update = address_get(link, address, NULL) >= 0;
- (void) in_addr_to_string(address->family, &address->in_addr, &str);
- log_link_debug(link, "%s address: %s", update ? "Updating" : "Configuring", strna(str));
- }
+ log_address_debug(address, update ? "Updating" : "Configuring", link);
if (update)
r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req,
if (r < 0)
return log_link_error_errno(link, r, "Could not allocate RTM_NEWADDR message: %m");
- r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
+ r = address_set_netlink_message(address, req, link);
if (r < 0)
- return log_link_error_errno(link, r, "Could not set prefixlen: %m");
-
- flags = address->flags | IFA_F_PERMANENT;
- r = sd_rtnl_message_addr_set_flags(req, flags & 0xff);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not set flags: %m");
-
- if (flags & ~0xff) {
- r = sd_netlink_message_append_u32(req, IFA_FLAGS, flags);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not set extended flags: %m");
- }
+ return r;
r = sd_rtnl_message_addr_set_scope(req, address->scope);
if (r < 0)
return log_link_error_errno(link, r, "Could not set scope: %m");
- r = netlink_message_append_in_addr_union(req, IFA_LOCAL, address->family, &address->in_addr);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not append IFA_LOCAL attribute: %m");
-
if (in_addr_is_null(address->family, &address->in_addr_peer) == 0) {
r = netlink_message_append_in_addr_union(req, IFA_ADDRESS, address->family, &address->in_addr_peer);
if (r < 0)
if (r < 0)
return log_link_error_errno(link, r, "Could not append IFA_CACHEINFO attribute: %m");
- r = address_add(link, address, &a);
- if (r < 0)
- return log_link_error_errno(link, r, "Could not add address: %m");
+ k = address_add(link, address, &a);
+ if (k < 0)
+ return log_link_error_errno(link, k, "Could not add address: %m");
r = address_set_masquerade(a, true);
if (r < 0)
if (ret)
*ret = a;
- return 1;
+ return k;
}
static int static_address_ready_callback(Address *address) {
Address *a;
Link *link;
+ int r;
assert(address);
assert(address->link);
link->addresses_ready = true;
+ r = link_set_ipv6_proxy_ndp_addresses(link);
+ if (r < 0)
+ return r;
+
return link_set_routes(link);
}
* will not be called automatically. So, call it here. */
a = set_first(link->static_addresses);
if (!a) {
- log_link_warning(link, "No static address is stored.");
- link_enter_failed(link);
+ log_link_debug(link, "No static address is stored. Already removed?");
return 1;
}
- if (!a->callback) {
- log_link_warning(link, "Address ready callback is not set.");
- link_enter_failed(link);
- return 1;
- }
- r = a->callback(a);
+
+ r = static_address_ready_callback(a);
if (r < 0)
link_enter_failed(link);
}
return 1;
}
-static int static_address_configure(const Address *address, Link *link, bool update) {
+static int static_address_configure(const Address *address, Link *link) {
Address *ret;
int r;
assert(address);
assert(link);
- r = address_configure(address, link, address_handler, update, &ret);
+ r = address_configure(address, link, address_handler, &ret);
if (r < 0)
return log_link_warning_errno(link, r, "Could not configure static address: %m");
return 0;
}
- ORDERED_HASHMAP_FOREACH(ad, link->network->addresses_by_section) {
- bool update;
+ if (link->address_messages != 0) {
+ log_link_debug(link, "Static addresses are configuring.");
+ return 0;
+ }
- update = address_get(link, ad, NULL) > 0;
- r = static_address_configure(ad, link, update);
+ ORDERED_HASHMAP_FOREACH(ad, link->network->addresses_by_section) {
+ r = static_address_configure(ad, link);
if (r < 0)
return r;
}
return log_link_warning_errno(link, r, "Could not generate EUI64 address: %m");
address->family = AF_INET6;
- r = static_address_configure(address, link, true);
+ r = static_address_configure(address, link);
if (r < 0)
return r;
}
if (link->address_messages == 0) {
link->addresses_configured = true;
link->addresses_ready = true;
+
+ r = link_set_ipv6_proxy_ndp_addresses(link);
+ if (r < 0)
+ return r;
+
r = link_set_routes(link);
if (r < 0)
return r;
int manager_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message, Manager *m) {
_cleanup_(address_freep) Address *tmp = NULL;
- _cleanup_free_ char *buf = NULL, *buf_peer = NULL;
Link *link = NULL;
uint16_t type;
unsigned char flags;
Address *address = NULL;
- char valid_buf[FORMAT_TIMESPAN_MAX];
- const char *valid_str = NULL;
int ifindex, r;
- bool has_peer = false;
assert(rtnl);
assert(message);
} else if (r >= 0) {
if (in4_addr_equal(&tmp->in_addr.in, &tmp->in_addr_peer.in))
tmp->in_addr_peer = IN_ADDR_NULL;
- else
- has_peer = true;
}
r = sd_netlink_message_read_in_addr(message, IFA_BROADCAST, &tmp->broadcast);
log_link_warning_errno(link, r, "rtnl: could not get peer address from address message, ignoring: %m");
return 0;
}
- has_peer = true;
} else if (r == -ENODATA) {
/* Does not have peer address. */
r = sd_netlink_message_read_in6_addr(message, IFA_ADDRESS, &tmp->in_addr.in6);
assert_not_reached("Received unsupported address family");
}
- (void) in_addr_to_string(tmp->family, &tmp->in_addr, &buf);
- (void) in_addr_to_string(tmp->family, &tmp->in_addr_peer, &buf_peer);
-
r = sd_netlink_message_read_cache_info(message, IFA_CACHEINFO, &tmp->cinfo);
if (r < 0 && r != -ENODATA) {
log_link_warning_errno(link, r, "rtnl: cannot get IFA_CACHEINFO attribute, ignoring: %m");
return 0;
- } else if (r >= 0 && tmp->cinfo.ifa_valid != CACHE_INFO_INFINITY_LIFE_TIME)
- valid_str = format_timespan(valid_buf, FORMAT_TIMESPAN_MAX,
- tmp->cinfo.ifa_valid * USEC_PER_SEC,
- USEC_PER_SEC);
+ }
(void) address_get(link, tmp, &address);
switch (type) {
case RTM_NEWADDR:
- if (address)
- log_link_debug(link, "Remembering updated address: %s%s%s/%u (valid %s%s)",
- strnull(buf), has_peer ? " peer " : "",
- has_peer ? strnull(buf_peer) : "", tmp->prefixlen,
- valid_str ? "for " : "forever", strempty(valid_str));
- else {
+ log_address_debug(tmp, address ? "Remembering updated" : "Remembering foreign", link);
+ if (!address) {
/* An address appeared that we did not request */
r = address_add_foreign(link, tmp, &address);
if (r < 0) {
+ _cleanup_free_ char *buf = NULL;
+
+ (void) in_addr_to_string(tmp->family, &tmp->in_addr, &buf);
log_link_warning_errno(link, r, "Failed to remember foreign address %s/%u, ignoring: %m",
strnull(buf), tmp->prefixlen);
return 0;
- } else
- log_link_debug(link, "Remembering foreign address: %s%s%s/%u (valid %s%s)",
- strnull(buf), has_peer ? " peer " : "",
- has_peer ? strnull(buf_peer) : "", tmp->prefixlen,
- valid_str ? "for " : "forever", strempty(valid_str));
+ }
}
/* address_update() logs internally, so we don't need to here. */
break;
case RTM_DELADDR:
- if (address) {
- log_link_debug(link, "Forgetting address: %s%s%s/%u (valid %s%s)",
- strnull(buf), has_peer ? " peer " : "",
- has_peer ? strnull(buf_peer) : "", tmp->prefixlen,
- valid_str ? "for " : "forever", strempty(valid_str));
- (void) address_drop(address);
- } else
- log_link_debug(link, "Kernel removed an address we don't remember: %s%s%s/%u (valid %s%s), ignoring.",
- strnull(buf), has_peer ? " peer " : "",
- has_peer ? strnull(buf_peer) : "", tmp->prefixlen,
- valid_str ? "for " : "forever", strempty(valid_str));
+ log_address_debug(tmp, address ? "Forgetting" : "Kernel removed unknown", link);
+ (void) address_drop(address);
break;
}
n->family = AF_INET;
- n = NULL;
+ TAKE_PTR(n);
return 0;
}
else
n->in_addr_peer = buffer;
- n = NULL;
-
+ TAKE_PTR(n);
return 0;
}
if (r < 0)
return log_oom();
- n = NULL;
+ TAKE_PTR(n);
return 0;
}
SET_FLAG(n->flags, ltype, r);
- n = NULL;
+ TAKE_PTR(n);
return 0;
}
}
n->scope_set = true;
- n = NULL;
+ TAKE_PTR(n);
return 0;
}
Network *network = userdata;
_cleanup_(address_free_or_set_invalidp) Address *n = NULL;
- AddressFamily a;
int r;
assert(filename);
return 0;
}
- a = duplicate_address_detection_address_family_from_string(rvalue);
+ AddressFamily a = duplicate_address_detection_address_family_from_string(rvalue);
if (a < 0) {
- log_syntax(unit, LOG_WARNING, filename, line, SYNTHETIC_ERRNO(EINVAL),
+ log_syntax(unit, LOG_WARNING, filename, line, a,
"Failed to parse %s=, ignoring: %s", lvalue, rvalue);
return 0;
}
-
n->duplicate_address_detection = a;
- n = NULL;
+
+ TAKE_PTR(n);
return 0;
}
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