diff options
| -rw-r--r-- | linux-user/syscall.c | 30 | ||||
| -rw-r--r-- | linux-user/syscall_defs.h | 15 |
2 files changed, 45 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index d1febff7f6..76481261b1 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -943,6 +943,24 @@ static abi_long do_select(int n, return ret; } +static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn, + abi_ulong target_addr, + socklen_t len) +{ + struct target_ip_mreqn *target_smreqn; + + target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1); + if (!target_smreqn) + return -TARGET_EFAULT; + mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr; + mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr; + if (len == sizeof(struct target_ip_mreqn)) + mreqn->imr_ifindex = tswapl(target_smreqn->imr_ifindex); + unlock_user(target_smreqn, target_addr, 0); + + return 0; +} + static inline abi_long target_to_host_sockaddr(struct sockaddr *addr, abi_ulong target_addr, socklen_t len) @@ -1118,6 +1136,7 @@ static abi_long do_setsockopt(int sockfd, int level, int optname, { abi_long ret; int val; + struct ip_mreqn *ip_mreq; switch(level) { case SOL_TCP: @@ -1156,6 +1175,17 @@ static abi_long do_setsockopt(int sockfd, int level, int optname, } ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); break; + case IP_ADD_MEMBERSHIP: + case IP_DROP_MEMBERSHIP: + if (optlen < sizeof (struct target_ip_mreq) || + optlen > sizeof (struct target_ip_mreqn)) + return -TARGET_EINVAL; + + ip_mreq = (struct ip_mreqn *) alloca(optlen); + target_to_host_ip_mreq(ip_mreq, optval_addr, optlen); + ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen)); + break; + default: goto unimplemented; } diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index b79d2dfb59..6e68c91ca6 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -111,6 +111,21 @@ struct target_sockaddr { uint8_t sa_data[14]; }; +struct target_in_addr { + uint32_t s_addr; /* big endian */ +}; + +struct target_ip_mreq { + struct target_in_addr imr_multiaddr; + struct target_in_addr imr_address; +}; + +struct target_ip_mreqn { + struct target_in_addr imr_multiaddr; + struct target_in_addr imr_address; + abi_long imr_ifindex; +}; + struct target_timeval { abi_long tv_sec; abi_long tv_usec; |