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mount: better logging for failed mounts #2

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This commit is contained in:
Robert Swiecki 2017-05-27 19:14:55 +02:00
parent b09f2d0a5d
commit 278711062a
1 changed files with 12 additions and 7 deletions
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19
mount.c
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@ -117,8 +117,7 @@ bool mountIsDir(const char *path)
return false;
}
static bool mountMount(struct nsjconf_t *nsjconf, struct mounts_t *mpt, const char *oldroot,
const char *dst)
static bool mountMount(struct mounts_t *mpt, const char *oldroot, const char *dst)
{
LOG_D("Mounting '%s' on '%s' (fstype:'%s', flags:%s, options:'%s', is_dir:%s)",
mpt->src ? mpt->src : "[NULL]", dst, mpt->fs_type ? mpt->fs_type : "[NULL]",
@ -158,15 +157,21 @@ static bool mountMount(struct nsjconf_t *nsjconf, struct mounts_t *mpt, const ch
*/
unsigned long flags = mpt->flags & ~(MS_RDONLY);
if (mount(srcpath, dst, mpt->fs_type, flags, mpt->options) == -1) {
if (errno == EACCES) {
PLOG_W
if (mpt->mandatory == false) {
PLOG_D
("mount(src:'%s', dst:'%s', fstype:'%s', flags:'%s', mandatory:%s) failed. "
"Skipping this mount as it's non-mandatory", srcpath, dst,
mpt->fs_type ? mpt->fs_type : "[NULL]", mountFlagsToStr(mpt->flags),
mpt->mandatory ? "true" : "false");
} else if (errno == EACCES) {
PLOG_E
("mount(src:'%s', dst:'%s', fstype:'%s', flags:'%s', mandatory:%s) failed. "
"Try fixing this problem by applying 'chmod o+x' to the '%s' directory and "
"its ancestors", srcpath, dst, mpt->fs_type ? mpt->fs_type : "[NULL]",
mountFlagsToStr(mpt->flags), nsjconf->chroot,
mountFlagsToStr(mpt->flags), mpt->src,
mpt->mandatory ? "true" : "false");
} else {
PLOG_W
PLOG_E
("mount(src:'%s', dst:'%s', fstype:'%s', flags:'%s' mandatory:%s) failed",
srcpath, dst, mpt->fs_type ? mpt->fs_type : "[NULL]",
mountFlagsToStr(mpt->flags), mpt->mandatory ? "true" : "false");
@ -268,7 +273,7 @@ static bool mountInitNsInternal(struct nsjconf_t *nsjconf)
}
char dst[PATH_MAX];
snprintf(dst, sizeof(dst), "%s/%s", newrootdir, p->dst);
if (mountMount(nsjconf, p, "/old_root", dst) == false) {
if (mountMount(p, "/old_root", dst) == false) {
return false;
}
}