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/*
* Copyright (C) NGINX, Inc.
*/
#include <nxt_main.h>
#if (NXT_HAVE_FREEBSD_NMOUNT)
#include <sys/param.h>
#include <sys/uio.h>
#endif
static nxt_int_t nxt_fs_mkdir(const u_char *dir, mode_t mode);
#if (NXT_HAVE_LINUX_MOUNT)
nxt_int_t
nxt_fs_mount(nxt_task_t *task, nxt_fs_mount_t *mnt)
{
int rc;
rc = mount((const char *) mnt->src, (const char *) mnt->dst,
(const char *) mnt->fstype, mnt->flags, mnt->data);
if (nxt_slow_path(rc < 0)) {
nxt_alert(task, "mount(\"%s\", \"%s\", \"%s\", %d, \"%s\") %E",
mnt->src, mnt->dst, mnt->fstype, mnt->flags, mnt->data,
nxt_errno);
return NXT_ERROR;
}
return NXT_OK;
}
#elif (NXT_HAVE_FREEBSD_NMOUNT)
nxt_int_t
nxt_fs_mount(nxt_task_t *task, nxt_fs_mount_t *mnt)
{
const char *fstype;
uint8_t is_bind, is_proc;
struct iovec iov[8];
char errmsg[256];
is_bind = nxt_strncmp(mnt->fstype, "bind", 4) == 0;
is_proc = nxt_strncmp(mnt->fstype, "proc", 4) == 0;
if (nxt_slow_path(!is_bind && !is_proc)) {
nxt_alert(task, "mount type \"%s\" not implemented.", mnt->fstype);
return NXT_ERROR;
}
if (is_bind) {
fstype = "nullfs";
} else {
fstype = "procfs";
}
iov[0].iov_base = (void *) "fstype";
iov[0].iov_len = 7;
iov[1].iov_base = (void *) fstype;
iov[1].iov_len = strlen(fstype) + 1;
iov[2].iov_base = (void *) "fspath";
iov[2].iov_len = 7;
iov[3].iov_base = (void *) mnt->dst;
iov[3].iov_len = nxt_strlen(mnt->dst) + 1;
iov[4].iov_base = (void *) "target";
iov[4].iov_len = 7;
iov[5].iov_base = (void *) mnt->src;
iov[5].iov_len = nxt_strlen(mnt->src) + 1;
iov[6].iov_base = (void *) "errmsg";
iov[6].iov_len = 7;
iov[7].iov_base = (void *) errmsg;
iov[7].iov_len = sizeof(errmsg);
if (nxt_slow_path(nmount(iov, 8, 0) < 0)) {
nxt_alert(task, "nmount(%p, 8, 0) %s", errmsg);
return NXT_ERROR;
}
return NXT_OK;
}
#endif
#if (NXT_HAVE_LINUX_UMOUNT2)
void
nxt_fs_unmount(const u_char *path)
{
if (nxt_slow_path(umount2((const char *) path, MNT_DETACH) < 0)) {
nxt_thread_log_error(NXT_LOG_WARN, "umount2(%s, MNT_DETACH) %E",
path, nxt_errno);
}
}
#elif (NXT_HAVE_UNMOUNT)
void
nxt_fs_unmount(const u_char *path)
{
if (nxt_slow_path(unmount((const char *) path, MNT_FORCE) < 0)) {
nxt_thread_log_error(NXT_LOG_WARN, "unmount(%s) %E", path, nxt_errno);
}
}
#endif
nxt_int_t
nxt_fs_mkdir_all(const u_char *dir, mode_t mode)
{
char *start, *end, *dst;
size_t dirlen;
char path[PATH_MAX];
dirlen = nxt_strlen(dir);
nxt_assert(dirlen < PATH_MAX && dirlen > 1 && dir[0] == '/');
dst = path;
start = end = (char *) dir;
while (*start != '\0') {
if (*start == '/') {
*dst++ = *start++;
}
end = strchr(start, '/');
if (end == NULL) {
end = ((char *)dir + dirlen);
}
dst = nxt_cpymem(dst, start, end - start);
*dst = '\0';
if (nxt_slow_path(nxt_fs_mkdir((u_char *) path, mode) != NXT_OK
&& nxt_errno != EEXIST))
{
return NXT_ERROR;
}
start = end;
}
return NXT_OK;
}
static nxt_int_t
nxt_fs_mkdir(const u_char *dir, mode_t mode)
{
if (nxt_fast_path(mkdir((const char *) dir, mode) == 0)) {
return NXT_OK;
}
return NXT_ERROR;
}
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