diff options
Diffstat (limited to 'xlators/features/protect/src/prot_client.c')
| -rw-r--r-- | xlators/features/protect/src/prot_client.c | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/xlators/features/protect/src/prot_client.c b/xlators/features/protect/src/prot_client.c deleted file mode 100644 index 79636410b94..00000000000 --- a/xlators/features/protect/src/prot_client.c +++ /dev/null @@ -1,213 +0,0 @@ -/* - Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com> - This file is part of GlusterFS. - - This file is licensed to you under your choice of the GNU Lesser - General Public License, version 3 or any later version (LGPLv3 or - later), or the GNU General Public License, version 2 (GPLv2), in all - cases as published by the Free Software Foundation. -*/ -#include "xlator.h" -#include "defaults.h" - -#ifdef HAVE_BACKTRACE -#include <execinfo.h> -#else -#include "execinfo_compat.h" -#endif - -#define NUM_FRAMES 20 - -static char PROTECT_KEY[] = "trusted.glusterfs.protect"; - -enum { - PROT_ACT_NONE = 0, - PROT_ACT_LOG, - PROT_ACT_REJECT, -}; - -void -pcli_print_trace (char *name, call_frame_t *frame) -{ - void *frames[NUM_FRAMES]; - char **symbols; - int size; - int i; - - gf_log (name, GF_LOG_INFO, "Translator stack:"); - list_for_each_entry (frame, &frame->root->myframes, frames) { - gf_log (name, GF_LOG_INFO, "%s (%s)", - frame->wind_from, frame->this->name); - } - - size = backtrace (frames, NUM_FRAMES); - if (size <= 0) { - return; - } - symbols = backtrace_symbols (frames, size); - if (!symbols) { - return; - } - - gf_log (name, GF_LOG_INFO, "Processor stack:"); - for (i = 0; i < size; ++i) { - gf_log (name, GF_LOG_INFO, "%s", symbols[i]); - } - free (symbols); -} - -int32_t -pcli_rename (call_frame_t *frame, xlator_t *this, loc_t *oldloc, - loc_t *newloc, dict_t *xdata) -{ - uint64_t value; - - if (newloc->parent == oldloc->parent) { - gf_log (this->name, GF_LOG_DEBUG, "rename in same directory"); - goto simple_unwind; - } - if (!oldloc->parent) { - goto simple_unwind; - } - if (inode_ctx_get (oldloc->parent, this, &value) != 0) { - goto simple_unwind; - } - - if (value != PROT_ACT_NONE) { - gf_log (this->name, GF_LOG_WARNING, - "got rename for protected %s", oldloc->path); - pcli_print_trace (this->name, frame); - if (value == PROT_ACT_REJECT) { - STACK_UNWIND_STRICT (rename, frame, -1, EPERM, - NULL, NULL, NULL, NULL, NULL, - xdata); - return 0; - } - } - -simple_unwind: - STACK_WIND_TAIL (frame, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->rename, oldloc, newloc, - xdata); - return 0; -} - -int32_t -pcli_setxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict, - int32_t flags, dict_t *xdata) -{ - data_t *data; - uint64_t value; - - /* - * We can't use dict_get_str and strcmp here, because the value comes - * directly from the user and might not be NUL-terminated (it would - * be if we had set it ourselves. - */ - - data = dict_get(dict,PROTECT_KEY); - if (!data) { - goto simple_wind; - } - - if (dict->count > 1) { - gf_log (this->name, GF_LOG_WARNING, - "attempted to mix %s with other keys", PROTECT_KEY); - goto simple_wind; - } - - gf_log (this->name, GF_LOG_DEBUG, "got %s request", PROTECT_KEY); - if (!strncmp(data->data,"log",data->len)) { - gf_log (this->name, GF_LOG_DEBUG, - "logging removals on %s", loc->path); - value = PROT_ACT_LOG; - } - else if (!strncmp(data->data,"reject",data->len)) { - gf_log (this->name, GF_LOG_DEBUG, - "rejecting removals on %s", loc->path); - value = PROT_ACT_REJECT; - } - else { - gf_log (this->name, GF_LOG_DEBUG, - "removing protection on %s", loc->path); - value = PROT_ACT_NONE; - } - /* Right now the value doesn't matter - just the presence. */ - if (inode_ctx_set(loc->inode,this,&value) != 0) { - gf_log (this->name, GF_LOG_WARNING, - "failed to set protection status for %s", loc->path); - } - STACK_UNWIND_STRICT (setxattr, frame, 0, 0, NULL); - return 0; - -simple_wind: - STACK_WIND_TAIL (frame, - FIRST_CHILD(this), FIRST_CHILD(this)->fops->setxattr, - loc, dict, flags, xdata); - return 0; -} - -int32_t -pcli_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag, - dict_t *xdata) -{ - uint64_t value; - - if (!loc->parent || (inode_ctx_get(loc->parent,this,&value) != 0)) { - goto simple_unwind; - } - - if (value != PROT_ACT_NONE) { - gf_log (this->name, GF_LOG_WARNING, - "got unlink for protected %s", loc->path); - pcli_print_trace(this->name, frame); - if (value == PROT_ACT_REJECT) { - STACK_UNWIND_STRICT (unlink, frame, -1, EPERM, - NULL, NULL, NULL); - return 0; - } - } - -simple_unwind: - STACK_WIND_TAIL (frame, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->unlink, loc, xflag, xdata); - return 0; -} - -int32_t -init (xlator_t *this) -{ - if (!this->children || this->children->next) { - gf_log (this->name, GF_LOG_ERROR, - "translator not configured with exactly one child"); - return -1; - } - - if (!this->parents) { - gf_log (this->name, GF_LOG_WARNING, - "dangling volume. check volfile "); - } - - return 0; -} - - -void -fini (xlator_t *this) -{ - return; -} - - -struct xlator_fops fops = { - .rename = pcli_rename, - .setxattr = pcli_setxattr, - .unlink = pcli_unlink, -}; - -struct xlator_cbks cbks = { -}; - -struct volume_options options[] = { - { .key = {NULL} }, -}; |