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bsd-user: Implement freebsd11 statfs related syscalls

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Implement the freebsd11 variant of the following syscalls:
statfs(2)
fstatfs(2)
getfsstat(2)

Co-authored-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
This commit is contained in:
Michal Meloun 2023-08-13 10:41:45 +02:00 committed by Warner Losh
parent 33d730684e
commit 196da9d3d3
1 changed files with 75 additions and 0 deletions
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75
bsd-user/freebsd/os-stat.h
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@ -32,9 +32,15 @@ __sym_compat(fstatat, freebsd11_fstatat, FBSD_1.1);
int freebsd11_fhstat(const fhandle_t *fhandle, struct freebsd11_stat *stat);
__sym_compat(fhstat, freebsd11_fhstat, FBSD_1.0);
int freebsd11_getfsstat(struct freebsd11_statfs *buf, long bufsize, int mode);
__sym_compat(getfsstat, freebsd11_getfsstat, FBSD_1.0);
int freebsd11_fhstatfs(const fhandle_t *fhandle, struct freebsd11_statfs * buf);
__sym_compat(fhstatfs, freebsd11_fhstatfs, FBSD_1.0);
int freebsd11_statfs(const char *path, struct freebsd11_statfs *buf);
__sym_compat(statfs, freebsd11_statfs, FBSD_1.0);
int freebsd11_fstatfs(int fd, struct freebsd11_statfs *buf);
__sym_compat(fstatfs, freebsd11_fstatfs, FBSD_1.0);
/* stat(2) */
static inline abi_long do_freebsd11_stat(abi_long arg1, abi_long arg2)
@ -293,6 +299,23 @@ static inline abi_long do_freebsd_fhstatfs(abi_ulong target_fhp_addr,
return h2t_freebsd_statfs(target_stfs_addr, &host_stfs);
}
/* statfs(2) */
static inline abi_long do_freebsd11_statfs(abi_long arg1, abi_long arg2)
{
abi_long ret;
void *p;
struct freebsd11_statfs host_stfs;
LOCK_PATH(p, arg1);
ret = get_errno(freebsd11_statfs(path(p), &host_stfs));
UNLOCK_PATH(p, arg1);
if (is_error(ret)) {
return ret;
}
return h2t_freebsd11_statfs(arg2, &host_stfs);
}
/* statfs(2) */
static inline abi_long do_freebsd_statfs(abi_long arg1, abi_long arg2)
{
@ -310,6 +333,20 @@ static inline abi_long do_freebsd_statfs(abi_long arg1, abi_long arg2)
return h2t_freebsd_statfs(arg2, &host_stfs);
}
/* fstatfs(2) */
static inline abi_long do_freebsd11_fstatfs(abi_long fd, abi_ulong target_addr)
{
abi_long ret;
struct freebsd11_statfs host_stfs;
ret = get_errno(freebsd11_fstatfs(fd, &host_stfs));
if (is_error(ret)) {
return ret;
}
return h2t_freebsd11_statfs(target_addr, &host_stfs);
}
/* fstatfs(2) */
static inline abi_long do_freebsd_fstatfs(abi_long fd, abi_ulong target_addr)
{
@ -324,6 +361,44 @@ static inline abi_long do_freebsd_fstatfs(abi_long fd, abi_ulong target_addr)
return h2t_freebsd_statfs(target_addr, &host_stfs);
}
/* getfsstat(2) */
static inline abi_long do_freebsd11_getfsstat(abi_ulong target_addr,
abi_long bufsize, abi_long flags)
{
abi_long ret;
struct freebsd11_statfs *host_stfs;
int count;
long host_bufsize;
count = bufsize / sizeof(struct target_freebsd11_statfs);
/* if user buffer is NULL then return number of mounted FS's */
if (target_addr == 0 || count == 0) {
return get_errno(freebsd11_getfsstat(NULL, 0, flags));
}
/* XXX check count to be reasonable */
host_bufsize = sizeof(struct freebsd11_statfs) * count;
host_stfs = alloca(host_bufsize);
if (!host_stfs) {
return -TARGET_EINVAL;
}
ret = count = get_errno(freebsd11_getfsstat(host_stfs, host_bufsize, flags));
if (is_error(ret)) {
return ret;
}
while (count--) {
if (h2t_freebsd11_statfs((target_addr +
(count * sizeof(struct target_freebsd11_statfs))),
&host_stfs[count])) {
return -TARGET_EFAULT;
}
}
return ret;
}
/* getfsstat(2) */
static inline abi_long do_freebsd_getfsstat(abi_ulong target_addr,
abi_long bufsize, abi_long flags)