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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /include/linux/lockd/xdr.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/linux/lockd/xdr.h')
-rw-r--r-- | include/linux/lockd/xdr.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h new file mode 100644 index 000000000..b60fbcd8c --- /dev/null +++ b/include/linux/lockd/xdr.h @@ -0,0 +1,117 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * linux/include/linux/lockd/xdr.h + * + * XDR types for the NLM protocol + * + * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LOCKD_XDR_H +#define LOCKD_XDR_H + +#include <linux/fs.h> +#include <linux/filelock.h> +#include <linux/nfs.h> +#include <linux/sunrpc/xdr.h> + +#define SM_MAXSTRLEN 1024 +#define SM_PRIV_SIZE 16 + +struct nsm_private { + unsigned char data[SM_PRIV_SIZE]; +}; + +struct svc_rqst; + +#define NLM_MAXCOOKIELEN 32 +#define NLM_MAXSTRLEN 1024 + +#define nlm_granted cpu_to_be32(NLM_LCK_GRANTED) +#define nlm_lck_denied cpu_to_be32(NLM_LCK_DENIED) +#define nlm_lck_denied_nolocks cpu_to_be32(NLM_LCK_DENIED_NOLOCKS) +#define nlm_lck_blocked cpu_to_be32(NLM_LCK_BLOCKED) +#define nlm_lck_denied_grace_period cpu_to_be32(NLM_LCK_DENIED_GRACE_PERIOD) + +#define nlm_drop_reply cpu_to_be32(30000) + +/* Lock info passed via NLM */ +struct nlm_lock { + char * caller; + unsigned int len; /* length of "caller" */ + struct nfs_fh fh; + struct xdr_netobj oh; + u32 svid; + u64 lock_start; + u64 lock_len; + struct file_lock fl; +}; + +/* + * NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes. + * FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to + * 32 bytes. + */ + +struct nlm_cookie +{ + unsigned char data[NLM_MAXCOOKIELEN]; + unsigned int len; +}; + +/* + * Generic lockd arguments for all but sm_notify + */ +struct nlm_args { + struct nlm_cookie cookie; + struct nlm_lock lock; + u32 block; + u32 reclaim; + u32 state; + u32 monitor; + u32 fsm_access; + u32 fsm_mode; +}; + +typedef struct nlm_args nlm_args; + +/* + * Generic lockd result + */ +struct nlm_res { + struct nlm_cookie cookie; + __be32 status; + struct nlm_lock lock; +}; + +/* + * statd callback when client has rebooted + */ +struct nlm_reboot { + char *mon; + unsigned int len; + u32 state; + struct nsm_private priv; +}; + +/* + * Contents of statd callback when monitored host rebooted + */ +#define NLMSVC_XDRSIZE sizeof(struct nlm_args) + +bool nlmsvc_decode_void(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_decode_testargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_decode_lockargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_decode_cancargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_decode_res(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_decode_reboot(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_decode_shareargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_decode_notify(struct svc_rqst *rqstp, struct xdr_stream *xdr); + +bool nlmsvc_encode_testres(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_encode_res(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_encode_void(struct svc_rqst *rqstp, struct xdr_stream *xdr); +bool nlmsvc_encode_shareres(struct svc_rqst *rqstp, struct xdr_stream *xdr); + +#endif /* LOCKD_XDR_H */ |