#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svcauth.h>
#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/export.h>
#define CAP_NFSD_MASK (CAP_FS_MASK|CAP_TO_MASK(CAP_SYS_RESOURCE))
+int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp)
+{
+ 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;
+ }
+ return exp->ex_flags;
+
+}
+
int nfsd_setuser(struct svc_rqst *rqstp, struct svc_export *exp)
{
- struct svc_cred *cred = &rqstp->rq_cred;
+ struct svc_cred cred = rqstp->rq_cred;
int i;
+ int flags = nfsexp_flags(rqstp, exp);
int ret;
- if (exp->ex_flags & NFSEXP_ALLSQUASH) {
- cred->cr_uid = exp->ex_anon_uid;
- cred->cr_gid = exp->ex_anon_gid;
- put_group_info(cred->cr_group_info);
- cred->cr_group_info = groups_alloc(0);
- } else if (exp->ex_flags & NFSEXP_ROOTSQUASH) {
+ if (flags & NFSEXP_ALLSQUASH) {
+ cred.cr_uid = exp->ex_anon_uid;
+ cred.cr_gid = exp->ex_anon_gid;
+ cred.cr_group_info = groups_alloc(0);
+ } else if (flags & NFSEXP_ROOTSQUASH) {
struct group_info *gi;
- if (!cred->cr_uid)
- cred->cr_uid = exp->ex_anon_uid;
- if (!cred->cr_gid)
- cred->cr_gid = exp->ex_anon_gid;
- gi = groups_alloc(cred->cr_group_info->ngroups);
+ if (!cred.cr_uid)
+ cred.cr_uid = exp->ex_anon_uid;
+ if (!cred.cr_gid)
+ cred.cr_gid = exp->ex_anon_gid;
+ gi = groups_alloc(cred.cr_group_info->ngroups);
if (gi)
- for (i = 0; i < cred->cr_group_info->ngroups; i++) {
- if (!GROUP_AT(cred->cr_group_info, i))
+ for (i = 0; i < cred.cr_group_info->ngroups; i++) {
+ if (!GROUP_AT(cred.cr_group_info, i))
GROUP_AT(gi, i) = exp->ex_anon_gid;
else
- GROUP_AT(gi, i) = GROUP_AT(cred->cr_group_info, i);
+ GROUP_AT(gi, i) = GROUP_AT(cred.cr_group_info, i);
}
- put_group_info(cred->cr_group_info);
- cred->cr_group_info = gi;
- }
+ cred.cr_group_info = gi;
+ } else
+ get_group_info(cred.cr_group_info);
- if (cred->cr_uid != (uid_t) -1)
- current->fsuid = cred->cr_uid;
+ if (cred.cr_uid != (uid_t) -1)
+ current->fsuid = cred.cr_uid;
else
current->fsuid = exp->ex_anon_uid;
- if (cred->cr_gid != (gid_t) -1)
- current->fsgid = cred->cr_gid;
+ if (cred.cr_gid != (gid_t) -1)
+ current->fsgid = cred.cr_gid;
else
current->fsgid = exp->ex_anon_gid;
- if (!cred->cr_group_info)
+ if (!cred.cr_group_info)
return -ENOMEM;
- ret = set_current_groups(cred->cr_group_info);
- if ((cred->cr_uid)) {
+ ret = set_current_groups(cred.cr_group_info);
+ put_group_info(cred.cr_group_info);
+ if ((cred.cr_uid)) {
cap_t(current->cap_effective) &= ~CAP_NFSD_MASK;
} else {
cap_t(current->cap_effective) |= (CAP_NFSD_MASK &