diff options
Diffstat (limited to 'xlators/mount/fuse/src/fuse-helpers.c')
| -rw-r--r-- | xlators/mount/fuse/src/fuse-helpers.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/xlators/mount/fuse/src/fuse-helpers.c b/xlators/mount/fuse/src/fuse-helpers.c index 4ea3094d1b5..d29c31651bc 100644 --- a/xlators/mount/fuse/src/fuse-helpers.c +++ b/xlators/mount/fuse/src/fuse-helpers.c @@ -14,9 +14,6 @@ #include <sys/sysctl.h> #endif -#ifndef GF_REQUEST_MAXGROUPS -#define GF_REQUEST_MAXGROUPS 16 -#endif /* GF_REQUEST_MAXGROUPS */ static void fuse_resolve_wipe (fuse_resolve_t *resolve) @@ -138,6 +135,7 @@ get_fuse_state (xlator_t *this, fuse_in_header_t *finh) } +#define FUSE_MAX_AUX_GROUPS 32 /* We can get only up to 32 aux groups from /proc */ void frame_fill_groups (call_frame_t *frame) { @@ -160,6 +158,9 @@ frame_fill_groups (call_frame_t *frame) if (!fp) goto out; + if (call_stack_alloc_groups (frame->root, FUSE_MAX_AUX_GROUPS) != 0) + goto out; + while ((ptr = fgets (line, sizeof line, fp))) { if (strncmp (ptr, "Groups:", 7) != 0) continue; @@ -176,7 +177,7 @@ frame_fill_groups (call_frame_t *frame) if (!endptr || *endptr) break; frame->root->groups[idx++] = id; - if (idx == GF_MAX_AUX_GROUPS) + if (idx == FUSE_MAX_AUX_GROUPS) break; } @@ -192,6 +193,7 @@ out: prcred_t *prcred = (prcred_t *) scratch; FILE *fp = NULL; int ret = 0; + int ngrps; ret = snprintf (filename, sizeof filename, "/proc/%d/cred", frame->root->pid); @@ -200,8 +202,11 @@ out: fp = fopen (filename, "r"); if (fp != NULL) { if (fgets (scratch, sizeof scratch, fp) != NULL) { - frame->root->ngrps = MIN(prcred->pr_ngroups, - GF_REQUEST_MAXGROUPS); + ngrps = MIN(prcred->pr_ngroups, + GF_MAX_AUX_GROUPS); + if (call_stack_alloc_groups (frame->root, + ngrps) != 0) + return; } fclose (fp); } @@ -226,7 +231,9 @@ out: if (sysctl(name, namelen, &kp, &kplen, NULL, 0) != 0) return; - ngroups = MIN(kp.kp_eproc.e_ucred.cr_ngroups, GF_REQUEST_MAXGROUPS); + ngroups = MIN(kp.kp_eproc.e_ucred.cr_ngroups, GF_MAX_AUX_GROUPS); + if (call_stack_alloc_groups (frame->root, ngroups) != 0) + return; for (i = 0; i < ngroups; i++) frame->root->groups[i] = kp.kp_eproc.e_ucred.cr_groups[i]; frame->root->ngrps = ngroups; @@ -257,6 +264,8 @@ static void get_groups(fuse_private_t *priv, call_frame_t *frame) gl = gid_cache_lookup(&priv->gid_cache, frame->root->pid); if (gl) { + if (call_stack_alloc_groups (frame->root, gl->gl_count) != 0) + return; frame->root->ngrps = gl->gl_count; for (i = 0; i < gl->gl_count; i++) frame->root->groups[i] = gl->gl_list[i]; |