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ipv6: support SOL_IPV6 options IPV6_UNICAST_HOPS and IPV6_MULTICAST_HOPS

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Added simple support for IPV6_UNICAST_HOPS and IPV6_UNICAST_HOPS, the application can configure the ttl parameters of the socket in user mode.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
This commit is contained in:
zhanghongyu 2023-05-12 15:28:24 +08:00 committed by Xiang Xiao
parent 8a70f8a76d
commit c9a843bdca
1 changed files with 38 additions and 2 deletions
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40
net/inet/ipv6_setsockopt.c
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@ -112,21 +112,57 @@ int ipv6_setsockopt(FAR struct socket *psock, int option,
} }
break; break;
case IPV6_MULTICAST_HOPS: /* Multicast hop limit */
{
FAR struct socket_conn_s *conn;
uint8_t ttl;
if (value == NULL || value_len == 0)
{
ret = -EINVAL;
break;
}
ttl = (value_len >= sizeof(int)) ?
*(FAR int *)value : (int)*(FAR unsigned char *)value;
conn = psock->s_conn;
conn->ttl = ttl;
ret = OK;
}
break;
/* The following IPv6 socket options are defined, but not implemented */ /* The following IPv6 socket options are defined, but not implemented */
case IPV6_MULTICAST_HOPS: /* Multicast hop limit */
case IPV6_MULTICAST_IF: /* Interface to use for outgoing multicast case IPV6_MULTICAST_IF: /* Interface to use for outgoing multicast
* packets */ * packets */
case IPV6_MULTICAST_LOOP: /* Multicast packets are delivered back to case IPV6_MULTICAST_LOOP: /* Multicast packets are delivered back to
* the local application */ * the local application */
#endif #endif
case IPV6_UNICAST_HOPS: /* Unicast hop limit */
case IPV6_V6ONLY: /* Restrict AF_INET6 socket to IPv6 case IPV6_V6ONLY: /* Restrict AF_INET6 socket to IPv6
* communications only */ * communications only */
nwarn("WARNING: Unimplemented IPv6 option: %d\n", option); nwarn("WARNING: Unimplemented IPv6 option: %d\n", option);
ret = -ENOSYS; ret = -ENOSYS;
break; break;
case IPV6_UNICAST_HOPS: /* Unicast hop limit */
{
FAR struct socket_conn_s *conn;
uint8_t ttl;
if (value == NULL || value_len == 0)
{
ret = -EINVAL;
break;
}
ttl = (value_len >= sizeof(int)) ?
*(FAR int *)value : (int)*(FAR unsigned char *)value;
conn = psock->s_conn;
conn->ttl = ttl;
ret = OK;
}
break;
case IPV6_RECVPKTINFO: case IPV6_RECVPKTINFO:
case IPV6_RECVHOPLIMIT: case IPV6_RECVHOPLIMIT:
{ {