From f57d419241e7c7cce5d11172081a5860e86aa8bc Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Fri, 30 Aug 2013 01:46:41 +0200 Subject: linux-user: Add setsockopt(SO_ATTACH_FILTER) This is needed to be able to run dhclient. Signed-off-by: Laurent Vivier Reviewed-by: Peter Maydell Signed-off-by: Riku Voipio --- linux-user/syscall.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'linux-user/syscall.c') diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 251c1163bd..505031b80f 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -106,6 +106,7 @@ int __clone2(int (*fn)(void *), void *child_stack_base, #include #include #include +#include #include "linux_loop.h" #include "cpu-uname.h" @@ -1357,6 +1358,49 @@ set_timeout: case TARGET_SO_SNDTIMEO: optname = SO_SNDTIMEO; goto set_timeout; + case TARGET_SO_ATTACH_FILTER: + { + struct target_sock_fprog *tfprog; + struct target_sock_filter *tfilter; + struct sock_fprog fprog; + struct sock_filter *filter; + int i; + + if (optlen != sizeof(*tfprog)) { + return -TARGET_EINVAL; + } + if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) { + return -TARGET_EFAULT; + } + if (!lock_user_struct(VERIFY_READ, tfilter, + tswapal(tfprog->filter), 0)) { + unlock_user_struct(tfprog, optval_addr, 1); + return -TARGET_EFAULT; + } + + fprog.len = tswap16(tfprog->len); + filter = malloc(fprog.len * sizeof(*filter)); + if (filter == NULL) { + unlock_user_struct(tfilter, tfprog->filter, 1); + unlock_user_struct(tfprog, optval_addr, 1); + return -TARGET_ENOMEM; + } + for (i = 0; i < fprog.len; i++) { + filter[i].code = tswap16(tfilter[i].code); + filter[i].jt = tfilter[i].jt; + filter[i].jf = tfilter[i].jf; + filter[i].k = tswap32(tfilter[i].k); + } + fprog.filter = filter; + + ret = get_errno(setsockopt(sockfd, SOL_SOCKET, + SO_ATTACH_FILTER, &fprog, sizeof(fprog))); + free(filter); + + unlock_user_struct(tfilter, tfprog->filter, 1); + unlock_user_struct(tfprog, optval_addr, 1); + return ret; + } /* Options with 'int' argument. */ case TARGET_SO_DEBUG: optname = SO_DEBUG; -- cgit v1.2.1