diff options
Diffstat (limited to 'src/libsystemd-network')
-rw-r--r-- | src/libsystemd-network/sd-icmp6-nd.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/libsystemd-network/sd-icmp6-nd.c b/src/libsystemd-network/sd-icmp6-nd.c index cac431b0b0..85b8ff93c5 100644 --- a/src/libsystemd-network/sd-icmp6-nd.c +++ b/src/libsystemd-network/sd-icmp6-nd.c @@ -44,6 +44,18 @@ enum icmp6_nd_state { #define ICMP6_ND_RECV_SIZE (IP6_MIN_MTU - sizeof(struct ip6_hdr)) #define ICMP6_OPT_LEN_UNITS 8 +typedef struct ICMP6Prefix ICMP6Prefix; + +struct ICMP6Prefix { + RefCount n_ref; + + LIST_FIELDS(ICMP6Prefix, prefixes); + + uint8_t len; + sd_event_source *timeout_valid; + struct in6_addr addr; +}; + struct sd_icmp6_nd { RefCount n_ref; @@ -52,6 +64,8 @@ struct sd_icmp6_nd { int event_priority; int index; struct ether_addr mac_addr; + uint32_t mtu; + LIST_HEAD(ICMP6Prefix, prefixes); int fd; sd_event_source *recv; sd_event_source *timeout; @@ -62,6 +76,35 @@ struct sd_icmp6_nd { #define log_icmp6_nd(p, fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "ICMPv6 CLIENT: " fmt, ##__VA_ARGS__) +static ICMP6Prefix *icmp6_prefix_unref(ICMP6Prefix *prefix) { + if (prefix && REFCNT_DEC(prefix->n_ref) <= 0) { + prefix->timeout_valid = + sd_event_source_unref(prefix->timeout_valid); + + free(prefix); + } + + return NULL; +} + +static int icmp6_prefix_new(ICMP6Prefix **ret) { + _cleanup_free_ ICMP6Prefix *prefix = NULL; + + assert(ret); + + prefix = new0(ICMP6Prefix, 1); + if (!prefix) + return -ENOMEM; + + prefix->n_ref = REFCNT_INIT; + LIST_INIT(prefixes, prefix); + + *ret = prefix; + prefix = NULL; + + return 0; +} + static void icmp6_nd_notify(sd_icmp6_nd *nd, int event) { if (nd->callback) @@ -152,10 +195,17 @@ static int icmp6_nd_init(sd_icmp6_nd *nd) { sd_icmp6_nd *sd_icmp6_nd_unref(sd_icmp6_nd *nd) { if (nd && REFCNT_DEC(nd->n_ref) == 0) { + ICMP6Prefix *prefix, *p; icmp6_nd_init(nd); sd_icmp6_nd_detach_event(nd); + LIST_FOREACH_SAFE(prefixes, prefix, p, nd->prefixes) { + LIST_REMOVE(prefixes, nd->prefixes, prefix); + + prefix = icmp6_prefix_unref(prefix); + } + free(nd); } @@ -179,6 +229,8 @@ int sd_icmp6_nd_new(sd_icmp6_nd **ret) { nd->index = -1; nd->fd = -1; + LIST_HEAD_INIT(nd->prefixes); + *ret = nd; nd = NULL; |