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bsd-user: Implement shmid_ds conversion between host and target.

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Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-11-kariem.taha2.7@gmail.com>
This commit is contained in:
Stacey Son
2023-09-25 21:26:56 +03:00
committed by Warner Losh
parent 86fbb4436b
commit bd2b73182f
1 changed files with 47 additions and 0 deletions
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47
bsd-user/bsd-mem.c
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@ -43,6 +43,30 @@ void target_to_host_ipc_perm__locked(struct ipc_perm *host_ip,
__get_user(host_ip->key, &target_ip->key);
}
abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
abi_ulong target_addr)
{
struct target_shmid_ds *target_sd;
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) {
return -TARGET_EFAULT;
}
target_to_host_ipc_perm__locked(&(host_sd->shm_perm),
&(target_sd->shm_perm));
__get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
__get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
__get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
__get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
__get_user(host_sd->shm_atime, &target_sd->shm_atime);
__get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
__get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
unlock_user_struct(target_sd, target_addr, 0);
return 0;
}
void host_to_target_ipc_perm__locked(struct target_ipc_perm *target_ip,
struct ipc_perm *host_ip)
{
@ -55,3 +79,26 @@ void host_to_target_ipc_perm__locked(struct target_ipc_perm *target_ip,
__put_user(host_ip->key, &target_ip->key);
}
abi_long host_to_target_shmid_ds(abi_ulong target_addr,
struct shmid_ds *host_sd)
{
struct target_shmid_ds *target_sd;
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) {
return -TARGET_EFAULT;
}
host_to_target_ipc_perm__locked(&(target_sd->shm_perm),
&(host_sd->shm_perm));
__put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
__put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
__put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
__put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
__put_user(host_sd->shm_atime, &target_sd->shm_atime);
__put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
__put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
unlock_user_struct(target_sd, target_addr, 1);
return 0;
}