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net: if: Add locking when setting/getting hoplimit or ttl

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Locking was missing when setting or getting IPv6 hop limit
or IPv4 time-to-live values.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2021-03-18 00:15:57 +02:00 • committed by Anas Nashif
commit 97bf53fdcf
2 changed files with 86 additions and 45 deletions
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82
subsys/net/ip/net_if.c
View file

@ -2473,6 +2473,47 @@ bool net_if_ipv6_router_rm(struct net_if_router *router)
return iface_router_rm(router);
}
uint8_t net_if_ipv6_get_hop_limit(struct net_if *iface)
{
#if defined(CONFIG_NET_NATIVE_IPV6)
int ret = 0;
k_mutex_lock(&lock, K_FOREVER);
if (!iface->config.ip.ipv6) {
goto out;
}
ret = iface->config.ip.ipv6->hop_limit;
out:
k_mutex_unlock(&lock);
return ret;
#else
ARG_UNUSED(iface);
return 0;
#endif
}
void net_ipv6_set_hop_limit(struct net_if *iface, uint8_t hop_limit)
{
#if defined(CONFIG_NET_NATIVE_IPV6)
k_mutex_lock(&lock, K_FOREVER);
if (!iface->config.ip.ipv6) {
goto out;
}
iface->config.ip.ipv6->hop_limit = hop_limit;
out:
k_mutex_unlock(&lock);
#else
ARG_UNUSED(iface);
ARG_UNUSED(hop_limit);
#endif
}
struct in6_addr *net_if_ipv6_get_ll(struct net_if *iface,
enum net_addr_state addr_state)
{
@ -2887,6 +2928,47 @@ out:
return ret;
}
uint8_t net_if_ipv4_get_ttl(struct net_if *iface)
{
#if defined(CONFIG_NET_NATIVE_IPV4)
int ret = 0;
k_mutex_lock(&lock, K_FOREVER);
if (!iface->config.ip.ipv4) {
goto out;
}
ret = iface->config.ip.ipv4->ttl;
out:
k_mutex_unlock(&lock);
return ret;
#else
ARG_UNUSED(iface);
return 0;
#endif
}
void net_if_ipv4_set_ttl(struct net_if *iface, uint8_t ttl)
{
#if defined(CONFIG_NET_NATIVE_IPV4)
k_mutex_lock(&lock, K_FOREVER);
if (!iface->config.ip.ipv4) {
goto out;
}
iface->config.ip.ipv4->ttl = ttl;
out:
k_mutex_unlock(&lock);
#else
ARG_UNUSED(iface);
ARG_UNUSED(ttl);
#endif
}
struct net_if_router *net_if_ipv4_router_lookup(struct net_if *iface,
struct in_addr *addr)
{