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-rw-r--r--src/network/networkd-radv.c250
1 files changed, 250 insertions, 0 deletions
diff --git a/src/network/networkd-radv.c b/src/network/networkd-radv.c
index 535454c472..c72acc9b82 100644
--- a/src/network/networkd-radv.c
+++ b/src/network/networkd-radv.c
@@ -24,7 +24,257 @@
#include "networkd-address.h"
#include "networkd-manager.h"
#include "networkd-radv.h"
+#include "parse-util.h"
#include "sd-radv.h"
+#include "string-util.h"
+
+int config_parse_router_preference(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;
+
+ assert(filename);
+ assert(section);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (streq(rvalue, "high"))
+ network->router_preference = SD_NDISC_PREFERENCE_HIGH;
+ else if (STR_IN_SET(rvalue, "medium", "normal", "default"))
+ network->router_preference = SD_NDISC_PREFERENCE_MEDIUM;
+ else if (streq(rvalue, "low"))
+ network->router_preference = SD_NDISC_PREFERENCE_LOW;
+ else
+ log_syntax(unit, LOG_ERR, filename, line, -EINVAL, "Router preference '%s' is invalid, ignoring assignment: %m", rvalue);
+
+ return 0;
+}
+
+void prefix_free(Prefix *prefix) {
+ if (!prefix)
+ return;
+
+ if (prefix->network) {
+ LIST_REMOVE(prefixes, prefix->network->static_prefixes, prefix);
+ assert(prefix->network->n_static_prefixes > 0);
+ prefix->network->n_static_prefixes--;
+
+ if (prefix->section)
+ hashmap_remove(prefix->network->prefixes_by_section,
+ prefix->section);
+ }
+
+ prefix->radv_prefix = sd_radv_prefix_unref(prefix->radv_prefix);
+
+ free(prefix);
+}
+
+int prefix_new(Prefix **ret) {
+ Prefix *prefix = NULL;
+
+ prefix = new0(Prefix, 1);
+ if (!prefix)
+ return -ENOMEM;
+
+ if (sd_radv_prefix_new(&prefix->radv_prefix) < 0)
+ return -ENOMEM;
+
+ *ret = prefix;
+ prefix = NULL;
+
+ return 0;
+}
+
+int prefix_new_static(Network *network, const char *filename,
+ unsigned section_line, Prefix **ret) {
+ _cleanup_network_config_section_free_ NetworkConfigSection *n = NULL;
+ _cleanup_prefix_free_ Prefix *prefix = NULL;
+ int r;
+
+ assert(network);
+ assert(ret);
+ assert(!!filename == (section_line > 0));
+
+ if (filename) {
+ r = network_config_section_new(filename, section_line, &n);
+ if (r < 0)
+ return r;
+
+ if (section_line) {
+ prefix = hashmap_get(network->prefixes_by_section, n);
+ if (prefix) {
+ *ret = prefix;
+ prefix = NULL;
+
+ return 0;
+ }
+ }
+ }
+
+ r = prefix_new(&prefix);
+ if (r < 0)
+ return r;
+
+ if (filename) {
+ prefix->section = n;
+ n = NULL;
+
+ r = hashmap_put(network->prefixes_by_section, prefix->section,
+ prefix);
+ if (r < 0)
+ return r;
+ }
+
+ prefix->network = network;
+ LIST_APPEND(prefixes, network->static_prefixes, prefix);
+ network->n_static_prefixes++;
+
+ *ret = prefix;
+ prefix = NULL;
+
+ return 0;
+}
+
+int config_parse_prefix(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_prefix_free_ Prefix *p = NULL;
+ uint8_t prefixlen = 64;
+ union in_addr_union in6addr;
+ int r;
+
+ assert(filename);
+ assert(section);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = prefix_new_static(network, filename, section_line, &p);
+ if (r < 0)
+ return r;
+
+ r = in_addr_prefix_from_string(rvalue, AF_INET6, &in6addr, &prefixlen);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Prefix is invalid, ignoring assignment: %s", rvalue);
+ return 0;
+ }
+
+ if (sd_radv_prefix_set_prefix(p->radv_prefix, &in6addr.in6, prefixlen) < 0)
+ return -EADDRNOTAVAIL;
+
+ log_syntax(unit, LOG_INFO, filename, line, r, "Found prefix %s", rvalue);
+
+ p = NULL;
+
+ return 0;
+}
+
+int config_parse_prefix_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_prefix_free_ Prefix *p = NULL;
+ int r, val;
+
+ assert(filename);
+ assert(section);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = prefix_new_static(network, filename, section_line, &p);
+ 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;
+ }
+
+ val = r;
+
+ if (streq(lvalue, "OnLink"))
+ r = sd_radv_prefix_set_onlink(p->radv_prefix, val);
+ else if (streq(lvalue, "AddressAutoconfiguration"))
+ r = sd_radv_prefix_set_address_autoconfiguration(p->radv_prefix, val);
+ if (r < 0)
+ return r;
+
+ p = NULL;
+
+ return 0;
+}
+
+int config_parse_prefix_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_prefix_free_ Prefix *p = NULL;
+ usec_t usec;
+ int r;
+
+ assert(filename);
+ assert(section);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = prefix_new_static(network, filename, section_line, &p);
+ if (r < 0)
+ return r;
+
+ r = parse_sec(rvalue, &usec);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Lifetime is invalid, ignoring assignment: %s", rvalue);
+ return 0;
+ }
+
+ /* a value of 0xffffffff represents infinity */
+ if (streq(lvalue, "PreferredLifetimeSec"))
+ r = sd_radv_prefix_set_preferred_lifetime(p->radv_prefix,
+ DIV_ROUND_UP(usec, USEC_PER_SEC));
+ else if (streq(lvalue, "ValidLifetimeSec"))
+ r = sd_radv_prefix_set_valid_lifetime(p->radv_prefix,
+ DIV_ROUND_UP(usec, USEC_PER_SEC));
+ if (r < 0)
+ return r;
+
+ p = NULL;
+
+ return 0;
+}
static int radv_get_ip6dns(Network *network, struct in6_addr **dns,
size_t *n_dns) {
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