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| author | Peter Maydell <peter.maydell@linaro.org> | 2011-12-14 15:37:18 +0000 |
|---|---|---|
| committer | Riku Voipio <riku.voipio@linaro.org> | 2012-02-02 17:51:20 +0200 |
| commit | 30297b55f797e5b74d1823b64c52b1bebd2a5d85 (patch) | |
| tree | 1a9062fe82d1df2bcc8f54ba0445e73819646f96 /linux-user | |
| parent | e3c33ec6b07dc4d0503cb43b2114be47fc344d36 (diff) | |
| download | qemu-30297b55f797e5b74d1823b64c52b1bebd2a5d85.zip qemu-30297b55f797e5b74d1823b64c52b1bebd2a5d85.tar.gz qemu-30297b55f797e5b74d1823b64c52b1bebd2a5d85.tar.bz2 | |
linux-user/syscall.c: Implement f and l versions of set/get/removexattr
Implement the f and l versions (operate on fd, don't follow links)
of the setxattr, getxattr and removexattr syscalls.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/syscall.c | 79 |
1 files changed, 70 insertions, 9 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 0a78a18..762115b 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -7796,18 +7796,13 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, #endif #ifdef CONFIG_ATTR #ifdef TARGET_NR_setxattr - case TARGET_NR_lsetxattr: - case TARGET_NR_fsetxattr: - case TARGET_NR_lgetxattr: - case TARGET_NR_fgetxattr: case TARGET_NR_listxattr: case TARGET_NR_llistxattr: case TARGET_NR_flistxattr: - case TARGET_NR_lremovexattr: - case TARGET_NR_fremovexattr: ret = -TARGET_EOPNOTSUPP; break; case TARGET_NR_setxattr: + case TARGET_NR_lsetxattr: { void *p, *n, *v = 0; if (arg3) { @@ -7820,7 +7815,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, p = lock_user_string(arg1); n = lock_user_string(arg2); if (p && n) { - ret = get_errno(setxattr(p, n, v, arg4, arg5)); + if (num == TARGET_NR_setxattr) { + ret = get_errno(setxattr(p, n, v, arg4, arg5)); + } else { + ret = get_errno(lsetxattr(p, n, v, arg4, arg5)); + } } else { ret = -TARGET_EFAULT; } @@ -7829,7 +7828,28 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, unlock_user(v, arg3, 0); } break; + case TARGET_NR_fsetxattr: + { + void *n, *v = 0; + if (arg3) { + v = lock_user(VERIFY_READ, arg3, arg4, 1); + if (!v) { + ret = -TARGET_EFAULT; + break; + } + } + n = lock_user_string(arg2); + if (n) { + ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5)); + } else { + ret = -TARGET_EFAULT; + } + unlock_user(n, arg2, 0); + unlock_user(v, arg3, 0); + } + break; case TARGET_NR_getxattr: + case TARGET_NR_lgetxattr: { void *p, *n, *v = 0; if (arg3) { @@ -7842,7 +7862,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, p = lock_user_string(arg1); n = lock_user_string(arg2); if (p && n) { - ret = get_errno(getxattr(p, n, v, arg4)); + if (num == TARGET_NR_getxattr) { + ret = get_errno(getxattr(p, n, v, arg4)); + } else { + ret = get_errno(lgetxattr(p, n, v, arg4)); + } } else { ret = -TARGET_EFAULT; } @@ -7851,13 +7875,38 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, unlock_user(v, arg3, arg4); } break; + case TARGET_NR_fgetxattr: + { + void *n, *v = 0; + if (arg3) { + v = lock_user(VERIFY_WRITE, arg3, arg4, 0); + if (!v) { + ret = -TARGET_EFAULT; + break; + } + } + n = lock_user_string(arg2); + if (n) { + ret = get_errno(fgetxattr(arg1, n, v, arg4)); + } else { + ret = -TARGET_EFAULT; + } + unlock_user(n, arg2, 0); + unlock_user(v, arg3, arg4); + } + break; case TARGET_NR_removexattr: + case TARGET_NR_lremovexattr: { void *p, *n; p = lock_user_string(arg1); n = lock_user_string(arg2); if (p && n) { - ret = get_errno(removexattr(p, n)); + if (num == TARGET_NR_removexattr) { + ret = get_errno(removexattr(p, n)); + } else { + ret = get_errno(lremovexattr(p, n)); + } } else { ret = -TARGET_EFAULT; } @@ -7865,6 +7914,18 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, unlock_user(n, arg2, 0); } break; + case TARGET_NR_fremovexattr: + { + void *n; + n = lock_user_string(arg2); + if (n) { + ret = get_errno(fremovexattr(arg1, n)); + } else { + ret = -TARGET_EFAULT; + } + unlock_user(n, arg2, 0); + } + break; #endif #endif /* CONFIG_ATTR */ #ifdef TARGET_NR_set_thread_area |