diff options
Diffstat (limited to 'xlators/nfs')
| -rw-r--r-- | xlators/nfs/server/src/nfs-fops.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/xlators/nfs/server/src/nfs-fops.c b/xlators/nfs/server/src/nfs-fops.c index 14bc0f33ba5..b91f73a5378 100644 --- a/xlators/nfs/server/src/nfs-fops.c +++ b/xlators/nfs/server/src/nfs-fops.c @@ -30,6 +30,8 @@ #include <libgen.h> #include <semaphore.h> +static int gf_auth_max_groups_nfs_log = 0; + void nfs_fix_groups (xlator_t *this, call_stack_t *root) { @@ -39,6 +41,7 @@ nfs_fix_groups (xlator_t *this, call_stack_t *root) gid_t mygroups[GF_MAX_AUX_GROUPS]; int ngroups; int i; + int max_groups; struct nfs_state *priv = this->private; const gid_list_t *agl; gid_list_t gl; @@ -47,10 +50,22 @@ nfs_fix_groups (xlator_t *this, call_stack_t *root) return; } + /* RPC enforces the GF_AUTH_GLUSTERFS_MAX_GROUPS limit */ + max_groups = GF_AUTH_GLUSTERFS_MAX_GROUPS(root->lk_owner.len); + agl = gid_cache_lookup(&priv->gid_cache, root->uid, 0, 0); if (agl) { - for (ngroups = 0; ngroups < agl->gl_count; ngroups++) + if (agl->gl_count > max_groups) { + GF_LOG_OCCASIONALLY (gf_auth_max_groups_nfs_log, + this->name, GF_LOG_WARNING, + "too many groups, reducing %d -> %d", + agl->gl_count, max_groups); + } + + for (ngroups = 0; ngroups < agl->gl_count + && ngroups <= max_groups; ngroups++) { root->groups[ngroups] = agl->gl_list[ngroups]; + } root->ngrps = ngroups; gid_cache_release(&priv->gid_cache, agl); return; @@ -92,6 +107,16 @@ nfs_fix_groups (xlator_t *this, call_stack_t *root) GF_FREE(gl.gl_list); } + /* RPC enforces the GF_AUTH_GLUSTERFS_MAX_GROUPS limit */ + if (ngroups > max_groups) { + GF_LOG_OCCASIONALLY (gf_auth_max_groups_nfs_log, + this->name, GF_LOG_WARNING, + "too many groups, reducing %d -> %d", + ngroups, max_groups); + + ngroups = max_groups; + } + /* Copy data to the frame. */ for (i = 0; i < ngroups; ++i) { gf_log (this->name, GF_LOG_TRACE, |