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nsfs: add missing id retrieval support

The mount namespace has supported id retrieval for a while already. Add support for the other types as well.

Christian Brauner committed 1 year ago

Commit f8612251 parent e83f0b52 files · +17 −14Browse files

Showing the changes to include/uapi (1 of 2 files). Show all

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include/uapi/linux/nsfs.h+4−2
@@ -16,8 +16,6 @@ · 15 unmodified lines
1616 #define NS_GET_NSTYPE _IO(NSIO, 0x3)
1717 /* Get owner UID (in the caller's user namespace) for a user namespace */
1818 #define NS_GET_OWNER_UID _IO(NSIO, 0x4)
19−/* Get the id for a mount namespace */
20−#define NS_GET_MNTNS_ID _IOR(NSIO, 0x5, __u64)
2119 /* Translate pid from target pid namespace into the caller's pid namespace. */
2220 #define NS_GET_PID_FROM_PIDNS _IOR(NSIO, 0x6, int)
2321 /* Return thread-group leader id of pid in the callers pid namespace. */
@@ -42,6 +40,10 @@ struct mnt_ns_info { · 18 unmodified lines
4240 /* Get previous namespace. */
4341 #define NS_MNT_GET_PREV _IOR(NSIO, 12, struct mnt_ns_info)
4442
43+/* Retrieve namespace identifiers. */
44+#define NS_GET_MNTNS_ID _IOR(NSIO, 5, __u64)
45+#define NS_GET_ID _IOR(NSIO, 13, __u64)
46+
4547 enum init_ns_ino {
4648 IPC_NS_INIT_INO = 0xEFFFFFFFU,
4749 UTS_NS_INIT_INO = 0xEFFFFFFEU,

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