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Only set allow_other when running as root

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This commit is contained in:
Antonio SJ Musumeci 2023-10-29 01:44:18 -05:00
parent 7890a4996c
commit d6a2f06797
3 changed files with 24 additions and 14 deletions
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21
libfuse/lib/mount_generic.c
View File

@ -61,6 +61,7 @@ enum {
};
struct mount_opts {
int allow_other;
int ishelp;
int flags;
int auto_unmount;
@ -76,13 +77,15 @@ struct mount_opts {
#define FUSE_MOUNT_OPT(t, p) { t, offsetof(struct mount_opts, p), 1 }
static const struct fuse_opt fuse_mount_opts[] = {
FUSE_MOUNT_OPT("allow_other", allow_other),
FUSE_MOUNT_OPT("blkdev", blkdev),
FUSE_MOUNT_OPT("auto_unmount", auto_unmount),
FUSE_MOUNT_OPT("auto_unmount", auto_unmount),
FUSE_MOUNT_OPT("fsname=%s", fsname),
FUSE_MOUNT_OPT("subtype=%s", subtype),
FUSE_OPT_KEY("allow_other", KEY_KERN_OPT),
FUSE_OPT_KEY("auto_unmount", KEY_FUSERMOUNT_OPT),
FUSE_OPT_KEY("blkdev", KEY_FUSERMOUNT_OPT),
FUSE_OPT_KEY("fsname=", KEY_FUSERMOUNT_OPT),
FUSE_OPT_KEY("blkdev", KEY_FUSERMOUNT_OPT),
FUSE_OPT_KEY("fsname=", KEY_FUSERMOUNT_OPT),
FUSE_OPT_KEY("subtype=", KEY_SUBTYPE_OPT),
FUSE_OPT_KEY("large_read", KEY_KERN_OPT),
FUSE_OPT_KEY("blksize=", KEY_KERN_OPT),
@ -98,18 +101,18 @@ static const struct fuse_opt fuse_mount_opts[] = {
FUSE_OPT_KEY("ro", KEY_KERN_FLAG),
FUSE_OPT_KEY("rw", KEY_KERN_FLAG),
FUSE_OPT_KEY("suid", KEY_KERN_FLAG),
FUSE_OPT_KEY("nosuid", KEY_KERN_FLAG),
FUSE_OPT_KEY("nosuid", KEY_KERN_FLAG),
FUSE_OPT_KEY("dev", KEY_KERN_FLAG),
FUSE_OPT_KEY("nodev", KEY_KERN_FLAG),
FUSE_OPT_KEY("exec", KEY_KERN_FLAG),
FUSE_OPT_KEY("noexec", KEY_KERN_FLAG),
FUSE_OPT_KEY("noexec", KEY_KERN_FLAG),
FUSE_OPT_KEY("async", KEY_KERN_FLAG),
FUSE_OPT_KEY("sync", KEY_KERN_FLAG),
FUSE_OPT_KEY("dirsync", KEY_KERN_FLAG),
FUSE_OPT_KEY("dirsync", KEY_KERN_FLAG),
FUSE_OPT_KEY("atime", KEY_KERN_FLAG),
FUSE_OPT_KEY("noatime", KEY_KERN_FLAG),
FUSE_OPT_KEY("noatime", KEY_KERN_FLAG),
FUSE_OPT_KEY("-h", KEY_HELP),
FUSE_OPT_KEY("--help", KEY_HELP),
FUSE_OPT_KEY("--help", KEY_HELP),
FUSE_OPT_KEY("-V", KEY_VERSION),
FUSE_OPT_KEY("--version", KEY_VERSION),
FUSE_OPT_END
@ -549,8 +552,6 @@ int fuse_kern_mount(const char *mountpoint, struct fuse_args *args)
fuse_opt_parse(args, &mo, fuse_mount_opts, fuse_mount_opt_proc) == -1)
return -1;
fuse_opt_add_opt(&mo.kernel_opts,"allow_other");
res = 0;
if (mo.ishelp)
goto out;

11
src/mergerfs.cpp
View File

@ -249,6 +249,7 @@ namespace l
main(const int argc_,
char **argv_)
{
int rv;
Config::Read cfg;
Config::ErrVec errs;
fuse_args args;
@ -283,9 +284,13 @@ namespace l
procfs::init();
return fuse_main(args.argc,
args.argv,
&ops);
rv = fuse_main(args.argc,
args.argv,
&ops);
syslog_info("exiting main loop with return code %d",rv);
return rv;
}
}

6
src/option_parser.cpp
View File

@ -26,6 +26,7 @@
#include "num.hpp"
#include "policy.hpp"
#include "str.hpp"
#include "syslog.hpp"
#include "version.hpp"
#include "fuse.h"
@ -116,6 +117,10 @@ void
set_default_options(fuse_args *args_)
{
set_option("default_permissions",args_);
if(geteuid() == 0)
set_option("allow_other",args_);
else
syslog_notice("not auto setting allow_other since not running as root");
}
static
@ -124,7 +129,6 @@ should_ignore(const std::string &key_)
{
static const std::set<std::string> IGNORED_KEYS =
{
"allow_other",
"atomic_o_trunc",
"big_writes",
"cache.open",