diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 7bf99beb18..d182890ff0 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -56,6 +56,7 @@ #include <linux/wireless.h> #include <linux/icmp.h> #include <linux/icmpv6.h> +#include <linux/if_tun.h> #include <linux/errqueue.h> #include <linux/random.h> #ifdef CONFIG_TIMERFD @@ -813,6 +814,12 @@ safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr, safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr, size_t, len, unsigned *, prio, const struct timespec *, timeout) #endif +#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range) +safe_syscall6(ssize_t, copy_file_range, int, infd, loff_t *, pinoff, + int, outfd, loff_t *, poutoff, size_t, length, + unsigned int, flags) +#endif + /* We do ioctl like this rather than via safe_syscall3 to preserve the * "third argument might be integer or pointer or not present" behaviour of * the libc function. @@ -5703,6 +5710,42 @@ static abi_long do_ioctl_drm_i915(const IOCTLEntry *ie, uint8_t *buf_temp, #endif +static abi_long do_ioctl_TUNSETTXFILTER(const IOCTLEntry *ie, uint8_t *buf_temp, + int fd, int cmd, abi_long arg) +{ + struct tun_filter *filter = (struct tun_filter *)buf_temp; + struct tun_filter *target_filter; + char *target_addr; + + assert(ie->access == IOC_W); + + target_filter = lock_user(VERIFY_READ, arg, sizeof(*target_filter), 1); + if (!target_filter) { + return -TARGET_EFAULT; + } + filter->flags = tswap16(target_filter->flags); + filter->count = tswap16(target_filter->count); + unlock_user(target_filter, arg, 0); + + if (filter->count) { + if (offsetof(struct tun_filter, addr) + filter->count * ETH_ALEN > + MAX_STRUCT_SIZE) { + return -TARGET_EFAULT; + } + + target_addr = lock_user(VERIFY_READ, + arg + offsetof(struct tun_filter, addr), + filter->count * ETH_ALEN, 1); + if (!target_addr) { + return -TARGET_EFAULT; + } + memcpy(filter->addr, target_addr, filter->count * ETH_ALEN); + unlock_user(target_addr, arg + offsetof(struct tun_filter, addr), 0); + } + + return get_errno(safe_ioctl(fd, ie->host_cmd, filter)); +} + IOCTLEntry ioctl_entries[] = { #define IOCTL(cmd, access, ...) \ { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } }, @@ -13065,6 +13108,42 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1, return get_errno(membarrier(arg1, arg2)); #endif +#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range) + case TARGET_NR_copy_file_range: + { + loff_t inoff, outoff; + loff_t *pinoff = NULL, *poutoff = NULL; + + if (arg2) { + if (get_user_u64(inoff, arg2)) { + return -TARGET_EFAULT; + } + pinoff = &inoff; + } + if (arg4) { + if (get_user_u64(outoff, arg4)) { + return -TARGET_EFAULT; + } + poutoff = &outoff; + } + ret = get_errno(safe_copy_file_range(arg1, pinoff, arg3, poutoff, + arg5, arg6)); + if (!is_error(ret) && ret > 0) { + if (arg2) { + if (put_user_u64(inoff, arg2)) { + return -TARGET_EFAULT; + } + } + if (arg4) { + if (put_user_u64(outoff, arg4)) { + return -TARGET_EFAULT; + } + } + } + } + return ret; +#endif + default: qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num); return -TARGET_ENOSYS; |