From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径
---
kernel/include/uapi/linux/nfsd/cld.h | 40 +++++++++++++++++++++++++++++++++++++++-
1 files changed, 39 insertions(+), 1 deletions(-)
diff --git a/kernel/include/uapi/linux/nfsd/cld.h b/kernel/include/uapi/linux/nfsd/cld.h
index f8f5ccc..a519313 100644
--- a/kernel/include/uapi/linux/nfsd/cld.h
+++ b/kernel/include/uapi/linux/nfsd/cld.h
@@ -26,22 +26,39 @@
#include <linux/types.h>
/* latest upcall version available */
-#define CLD_UPCALL_VERSION 1
+#define CLD_UPCALL_VERSION 2
/* defined by RFC3530 */
#define NFS4_OPAQUE_LIMIT 1024
+
+#ifndef SHA256_DIGEST_SIZE
+#define SHA256_DIGEST_SIZE 32
+#endif
enum cld_command {
Cld_Create, /* create a record for this cm_id */
Cld_Remove, /* remove record of this cm_id */
Cld_Check, /* is this cm_id allowed? */
Cld_GraceDone, /* grace period is complete */
+ Cld_GraceStart, /* grace start (upload client records) */
+ Cld_GetVersion, /* query max supported upcall version */
};
/* representation of long-form NFSv4 client ID */
struct cld_name {
__u16 cn_len; /* length of cm_id */
unsigned char cn_id[NFS4_OPAQUE_LIMIT]; /* client-provided */
+} __attribute__((packed));
+
+/* sha256 hash of the kerberos principal */
+struct cld_princhash {
+ __u8 cp_len; /* length of cp_data */
+ unsigned char cp_data[SHA256_DIGEST_SIZE]; /* hash of principal */
+} __attribute__((packed));
+
+struct cld_clntinfo {
+ struct cld_name cc_name;
+ struct cld_princhash cc_princhash;
} __attribute__((packed));
/* message struct for communication with userspace */
@@ -53,7 +70,28 @@
union {
__s64 cm_gracetime; /* grace period start time */
struct cld_name cm_name;
+ __u8 cm_version; /* for getting max version */
} __attribute__((packed)) cm_u;
} __attribute__((packed));
+/* version 2 message can include hash of kerberos principal */
+struct cld_msg_v2 {
+ __u8 cm_vers; /* upcall version */
+ __u8 cm_cmd; /* upcall command */
+ __s16 cm_status; /* return code */
+ __u32 cm_xid; /* transaction id */
+ union {
+ struct cld_name cm_name;
+ __u8 cm_version; /* for getting max version */
+ struct cld_clntinfo cm_clntinfo; /* name & princ hash */
+ } __attribute__((packed)) cm_u;
+} __attribute__((packed));
+
+struct cld_msg_hdr {
+ __u8 cm_vers; /* upcall version */
+ __u8 cm_cmd; /* upcall command */
+ __s16 cm_status; /* return code */
+ __u32 cm_xid; /* transaction id */
+} __attribute__((packed));
+
#endif /* !_NFSD_CLD_H */
--
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