From 0ec757df9743025f14190d6034d8bd2bf37c2dd1 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Tue, 17 Jul 2007 04:04:48 -0700 Subject: knfsd: nfsd4: make readonly access depend on pseudoflavor Allow readonly access to vary depending on the pseudoflavor, using the flag passed with each pseudoflavor in the export downcall. The rest of the flags are ignored for now, though some day we might also allow id squashing to vary based on the flavor. Signed-off-by: "J. Bruce Fields" Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/nfsd/export.h | 13 ++++++++++++- include/linux/nfsd/nfsd.h | 3 ++- 2 files changed, 14 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h index 424be41130ba..a01f775cb944 100644 --- a/include/linux/nfsd/export.h +++ b/include/linux/nfsd/export.h @@ -112,10 +112,21 @@ struct svc_expkey { #define EX_SECURE(exp) (!((exp)->ex_flags & NFSEXP_INSECURE_PORT)) #define EX_ISSYNC(exp) (!((exp)->ex_flags & NFSEXP_ASYNC)) -#define EX_RDONLY(exp) ((exp)->ex_flags & NFSEXP_READONLY) #define EX_NOHIDE(exp) ((exp)->ex_flags & NFSEXP_NOHIDE) #define EX_WGATHER(exp) ((exp)->ex_flags & NFSEXP_GATHERED_WRITES) +static inline int EX_RDONLY(struct svc_export *exp, struct svc_rqst *rqstp) +{ + struct exp_flavor_info *f; + struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors; + + for (f = exp->ex_flavors; f < end; f++) { + if (f->pseudoflavor == rqstp->rq_flavor) + return f->flags & NFSEXP_READONLY; + } + return exp->ex_flags & NFSEXP_READONLY; +} + __be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp); /* diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h index 62499c2f0918..54ef1a18a56c 100644 --- a/include/linux/nfsd/nfsd.h +++ b/include/linux/nfsd/nfsd.h @@ -119,7 +119,8 @@ __be32 nfsd_statfs(struct svc_rqst *, struct svc_fh *, struct kstatfs *); int nfsd_notify_change(struct inode *, struct iattr *); -__be32 nfsd_permission(struct svc_export *, struct dentry *, int); +__be32 nfsd_permission(struct svc_rqst *, struct svc_export *, + struct dentry *, int); int nfsd_sync_dir(struct dentry *dp); #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) -- cgit v1.2.3