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https://github.com/RGBCube/serenity
synced 2025-07-27 03:17:35 +00:00
Userland: Support mount flags
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parent
61c1106d9f
commit
a9e6f4a2cd
1 changed files with 45 additions and 3 deletions
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@ -6,6 +6,27 @@
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#include <stdio.h>
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#include <unistd.h>
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int parse_options(const StringView& options)
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{
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int flags = 0;
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Vector<StringView> parts = options.split_view(',');
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for (auto& part : parts) {
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if (part == "defaults")
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continue;
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else if (part == "nodev")
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flags |= MS_NODEV;
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else if (part == "noexec")
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flags |= MS_NOEXEC;
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else if (part == "nosuid")
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flags |= MS_NOSUID;
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else if (part == "bind")
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flags |= MS_BIND;
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else
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fprintf(stderr, "Ignoring invalid option: %s\n", String(part).characters());
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}
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return flags;
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}
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bool mount_all()
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{
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// Mount all filesystems listed in /etc/fstab.
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@ -37,6 +58,7 @@ bool mount_all()
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const char* devname = parts[0].characters();
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const char* mountpoint = parts[1].characters();
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const char* fstype = parts[2].characters();
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int flags = parts.size() >= 4 ? parse_options(parts[3]) : 0;
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if (strcmp(mountpoint, "/") == 0) {
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dbg() << "Skipping mounting root";
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@ -45,7 +67,7 @@ bool mount_all()
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dbg() << "Mounting " << devname << "(" << fstype << ")"
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<< " on " << mountpoint;
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int rc = mount(devname, mountpoint, fstype, 0);
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int rc = mount(devname, mountpoint, fstype, flags);
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if (rc != 0) {
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fprintf(stderr, "Failed to mount %s (%s) on %s: %s\n", devname, fstype, mountpoint, strerror(errno));
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all_ok = false;
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@ -73,8 +95,26 @@ bool print_mounts()
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auto class_name = fs_object.get("class_name").to_string();
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auto mount_point = fs_object.get("mount_point").to_string();
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auto device = fs_object.get("device").as_string_or(class_name);
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auto readonly = fs_object.get("readonly").to_bool();
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auto mount_flags = fs_object.get("mount_flags").to_int();
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printf("%s on %s type %s\n", device.characters(), mount_point.characters(), class_name.characters());
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printf("%s on %s type %s (", device.characters(), mount_point.characters(), class_name.characters());
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if (readonly)
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printf("ro");
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else
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printf("rw");
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if (mount_flags & MS_NODEV)
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printf(",nodev");
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if (mount_flags & MS_NOEXEC)
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printf(",noexec");
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if (mount_flags & MS_NOSUID)
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printf(",nosuid");
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if (mount_flags & MS_BIND)
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printf(",bind");
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printf(")\n");
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});
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return true;
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@ -86,6 +126,7 @@ int main(int argc, char** argv)
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args_parser.add_arg("devname", "device path");
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args_parser.add_arg("mountpoint", "mount point");
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args_parser.add_arg("t", "fstype", "file system type");
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args_parser.add_arg("o", "options", "mount options");
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args_parser.add_arg("a", "mount all systems listed in /etc/fstab");
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CArgsParserResult args = args_parser.parse(argc, argv);
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@ -100,8 +141,9 @@ int main(int argc, char** argv)
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String devname = args.get_single_values()[0];
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String mountpoint = args.get_single_values()[1];
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String fstype = args.is_present("t") ? args.get("t") : "ext2";
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int flags = args.is_present("o") ? parse_options(args.get("o")) : 0;
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if (mount(devname.characters(), mountpoint.characters(), fstype.characters(), 0) < 0) {
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if (mount(devname.characters(), mountpoint.characters(), fstype.characters(), flags) < 0) {
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perror("mount");
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return 1;
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}
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