diff options
| author | Yunqiang Su <ysu@wavecomp.com> | 2019-06-19 16:17:11 +0200 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2019-06-24 22:59:14 +0200 |
| commit | f31dddd2fc0a9cd40cdb9203662f75a785220268 (patch) | |
| tree | 1734044748db06e213814a255850c00b2b8e053b /linux-user | |
| parent | 524fa3408ed745a2fed0642fb0d92c934d10ff64 (diff) | |
linux-user: Add support for setsockopt() option SOL_ALG
Add support for options SOL_ALG of the syscall setsockopt(). This
option is used in relation to Linux kernel Crypto API, and allows
a user to set additional information for the cipher operation via
syscall setsockopt(). The field "optname" must be one of the
following:
- ALG_SET_KEY – seting the key
- ALG_SET_AEAD_AUTHSIZE – set the authentication tag size
SOL_ALG is relatively newer setsockopt() option. Therefore, the
code that handles SOL_ALG is enclosed in "ifdef" so that the build
does not fail for older kernels that do not contain support for
SOL_ALG. "ifdef" also contains check if ALG_SET_KEY and
ALG_SET_AEAD_AUTHSIZE are defined.
Signed-off-by: Yunqiang Su <ysu@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1560953834-29584-3-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/syscall.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index e942049cb0..ed1c9b0033 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -102,6 +102,7 @@ #include <linux/blkpg.h> #include <netpacket/packet.h> #include <linux/netlink.h> +#include <linux/if_alg.h> #include "linux_loop.h" #include "uname.h" @@ -1941,6 +1942,36 @@ static abi_long do_setsockopt(int sockfd, int level, int optname, goto unimplemented; } break; +#if defined(SOL_ALG) && defined(ALG_SET_KEY) && defined(ALG_SET_AEAD_AUTHSIZE) + case SOL_ALG: + switch (optname) { + case ALG_SET_KEY: + { + char *alg_key = g_malloc(optlen); + + if (!alg_key) { + return -TARGET_ENOMEM; + } + if (copy_from_user(alg_key, optval_addr, optlen)) { + g_free(alg_key); + return -TARGET_EFAULT; + } + ret = get_errno(setsockopt(sockfd, level, optname, + alg_key, optlen)); + g_free(alg_key); + break; + } + case ALG_SET_AEAD_AUTHSIZE: + { + ret = get_errno(setsockopt(sockfd, level, optname, + NULL, optlen)); + break; + } + default: + goto unimplemented; + } + break; +#endif case TARGET_SOL_SOCKET: switch (optname) { case TARGET_SO_RCVTIMEO: |