diff options
Diffstat (limited to 'src/network/networkd-radv.c')
| -rw-r--r-- | src/network/networkd-radv.c | 195 |
1 files changed, 186 insertions, 9 deletions
diff --git a/src/network/networkd-radv.c b/src/network/networkd-radv.c index 25321aefed..8972c661ae 100644 --- a/src/network/networkd-radv.c +++ b/src/network/networkd-radv.c @@ -101,16 +101,100 @@ static int prefix_new_static(Network *network, const char *filename, return 0; } +int route_prefix_new(Prefix **ret) { + _cleanup_(prefix_freep) Prefix *prefix = NULL; + + prefix = new0(Prefix, 1); + if (!prefix) + return -ENOMEM; + + if (sd_radv_route_prefix_new(&prefix->radv_route_prefix) < 0) + return -ENOMEM; + + *ret = TAKE_PTR(prefix); + + return 0; +} + +void route_prefix_free(Prefix *prefix) { + if (!prefix) + return; + + if (prefix->network) { + LIST_REMOVE(prefixes, prefix->network->static_route_prefixes, prefix); + assert(prefix->network->n_static_route_prefixes > 0); + prefix->network->n_static_route_prefixes--; + + if (prefix->section) + hashmap_remove(prefix->network->route_prefixes_by_section, + prefix->section); + } + + network_config_section_free(prefix->section); + + free(prefix); +} + +static int route_prefix_new_static(Network *network, const char *filename, + unsigned section_line, Prefix **ret) { + _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL; + _cleanup_(prefix_freep) 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->route_prefixes_by_section, n); + if (prefix) { + *ret = TAKE_PTR(prefix); + + return 0; + } + } + } + + r = route_prefix_new(&prefix); + if (r < 0) + return r; + + prefix->network = network; + LIST_APPEND(prefixes, network->static_route_prefixes, prefix); + network->n_static_route_prefixes++; + + if (filename) { + prefix->section = TAKE_PTR(n); + + r = hashmap_ensure_allocated(&network->route_prefixes_by_section, &network_config_hash_ops); + if (r < 0) + return r; + + r = hashmap_put(network->route_prefixes_by_section, prefix->section, prefix); + if (r < 0) + return r; + } + + *ret = TAKE_PTR(prefix); + + 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) { + 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_or_set_invalidp) Prefix *p = NULL; @@ -234,6 +318,90 @@ int config_parse_prefix_lifetime(const char *unit, return 0; } +int config_parse_route_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_or_set_invalidp) 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 = route_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, "Route prefix is invalid, ignoring assignment: %s", rvalue); + return 0; + } + + if (sd_radv_prefix_set_route_prefix(p->radv_route_prefix, &in6addr.in6, prefixlen) < 0) + return -EADDRNOTAVAIL; + + log_syntax(unit, LOG_INFO, filename, line, r, "Found route prefix %s", rvalue); + + p = NULL; + + return 0; +} + +int config_parse_route_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_or_set_invalidp) Prefix *p = NULL; + usec_t usec; + int r; + + assert(filename); + assert(section); + assert(lvalue); + assert(rvalue); + assert(data); + + r = route_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, "Roure lifetime is invalid, ignoring assignment: %s", rvalue); + return 0; + } + + /* a value of 0xffffffff represents infinity */ + r = sd_radv_route_prefix_set_lifetime(p->radv_route_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) { _cleanup_free_ struct in6_addr *addresses = NULL; @@ -438,6 +606,15 @@ int radv_configure(Link *link) { if (r < 0) return r; } + + LIST_FOREACH(prefixes, p, link->network->static_route_prefixes) { + r = sd_radv_add_route_prefix(link->radv, p->radv_route_prefix, false); + if (r == -EEXIST) + continue; + if (r < 0) + return r; + } + } return radv_emit_dns(link); |