Commit Graph

12 Commits

Author SHA1 Message Date
Levi Neely 358ae595e9
Add memory accounting per subsystem (#371)
* Implement memory accounting infrastructure

* Migrate malloc/calloc to pmem_malloc with subsystem tracking

* Add overflow-safe pmem_malloc_array function

* Migrate pfstasks.c malloc/free to pmem_malloc/pmem_free

* Migrate pnetlibs.c malloc/free to pmem_malloc/pmem_free

* Fix multiplication patterns in pnetlibs.c with pmem_malloc_array

* Migrate ppagecache.c malloc/free to pmem_malloc/pmem_free

* Fix remaining multiplication pattern in ppagecache.c line 3239

* Migrate pssl.c malloc/free to pmem_malloc/pmem_free

* Migrate pcryptofolder.c malloc/free to pmem_malloc/pmem_free

* Migrate pfolder.c malloc/free to pmem_malloc/pmem_free

* Fix multiplication patterns in pfolder.c with overflow checks

* Migrate publiclinks.c malloc/free to pmem_malloc/pmem_free

* Migrate plocalscan.c malloc/free to pmem_malloc/pmem_free

* Migrate psql.c malloc/free to pmem_malloc/pmem_free

* Migrate putil.c malloc/free to pmem_malloc/pmem_free

* Fix multiplication patterns in putil.c encoding functions with overflow checks

* Migrate pfsupload.c malloc/free to pmem_malloc/pmem_free

* Migrate pdiff.c malloc/free to pmem_malloc/pmem_free

* Migrate pcrypto.c malloc/free to pmem_malloc/pmem_free

* Migrate pupload.c malloc/free to pmem_malloc/pmem_free

* Migrate psock.c malloc/free to pmem_malloc/pmem_free

* Fix multiplication pattern in psock.c with overflow checks

* Add panic() with backtrace to psignal module

* Register panic handlers early in main()

* Fix panic() infinite recursion by unregistering handlers before abort()

* Migrate remaining 34 files to pmem_malloc/pmem_free

* Migrate papi.c, ptools.c, pbusinessaccount.c to PMEM_SUBSYS_API

* Fix pcache.c compilation errors - replace he->pmem_free with pmem_free

* Add pmem.h include to pdbg.c

* Add pmem.h include to 10 files missing it

* Fix ptask.c compilation errors - replace s->pmem_free with s->free

* Fix ptask.c callback arguments - remove PMEM_SUBSYS_OTHER from s->free calls

* Fix pmem.c infinite recursion - use raw malloc/free internally

* Fix prand.c mixed allocation - use pmem_free for putil_strdup result

* Migrate psettings.c free() calls to pmem_free()

* Fix all remaining stray free() calls - migrate to pmem_free()

* Fix pnetlibs_debug.c free() call - migrate to pmem_free()

* Add missing pmem.h include to pdevice.c

* Migrate pclsync_lib.cpp free() calls to pmem_free()

* Fix pfolder.c psync_free_string_list to use pmem_free()

* Fix all psync_list_for_each_element_call to use pmem_free wrappers

* Fix all list free wrapper functions - add proper definitions

* Fix rpcclient.cpp mixed allocation - use pmem_free for prpc_sockpath

* Replace all realloc() calls with pmem_realloc()

* Replace all strdup() calls with putil_strdup()

* Fix rpcclient.cpp allocation boundary - use plain malloc/free for RPC responses

* Fix RPC response length calculation - include header size

* Fix control_tools.cpp mixed allocations - use pmem_free for pshm_read results

---------

Co-authored-by: Levi Neely <lkn@darkstar.example.net>
2026-03-08 21:47:22 +01:00
Levi Neely 874e25f11b
Fix pcl-zqv.4.2: protocol parsing and buffer safety in prpc/papi (#348)
prpc.c:
- on_request: fix total_size computation. The original formula
  sizeof(uint32_t)+sizeof(uint64_t)+response->length had two bugs:
  (1) sizeof(uint32_t)+sizeof(uint64_t)=12 but offsetof(rpc_message_t,value)=16
  due to struct alignment padding between the uint32_t type and uint64_t length
  fields; and (2) respond() was storing full message size in response->length,
  double-counting the header. Fix: use offsetof(rpc_message_t,value)+response->length,
  consistent with readResponse() in rpcclient.cpp which reads a fixed header_size
  of offsetof(rpc_message_t,value) bytes then reads msg->length payload bytes.
- respond: store payload length only in response->length (value_length+1),
  not full message size, to match the client protocol expectation.
- prpc_init: add null check on malloc return value.
- prpc_register: restore old handler table and return -1 if prpc_init fails.

papi.c:
- papi_result_thread: add missing MAX_API_RESPONSE_SIZE guard (present in
  papi_result but absent here), preventing server-controlled unbounded malloc.
- papi_result, papi_result_thread: add null checks on malloc before passing
  pointer to psock_readall.
- papi_result_async: add MAX_API_RESPONSE_SIZE check and malloc null check
  on reader->respsize path.
- calc_ret_len: add _NEED_DATA(1) guard before ARRAY and HASH while-loop
  conditions; empty containers with datalen=0 caused out-of-bounds read.

Co-authored-by: Levi Neely <lkn@darkstar.example.net>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-04 19:02:01 +01:00
Levi Neely c9bb7685b7
Add POVERLAY_BUFSIZE bounds check in prpc.c read loop (#322)
RPC commands tested, sync list works
2026-03-03 15:49:18 +01:00
Levi Neely 0ae4882ada
Fix integer overflow in prpc.c response->length calculation (#321)
RPC commands tested, daemon works
2026-03-03 15:46:39 +01:00
Levi Neely 3240c033bb
Fix use-after-free: heap-allocate socket fd for RPC threads (#314)
RPC commands tested and working
2026-03-03 15:08:29 +01:00
Levi Neely 87ab65b68c
Fix integer underflow in prpc.c handler dispatch (#306)
cbidx = request->type - 20 computed before checking lower bound.
If request->type < calbacks_lower_band, cbidx wraps to large value
causing out-of-bounds array access.

Move bounds check before subtraction and use calbacks_lower_band
instead of hardcoded 20.

Fixes GH #235

Co-authored-by: Levi Neely <lkn@darkstar.example.net>
2026-03-03 12:37:13 +01:00
Levi Neely 6994a3cac9
102 create a psql namespace (#142)
* another stupid macro gone

* more stupid macros gone. moved util functions from plibs to putil

* remaining plist and ptask functions moved to appropriate namespaces

* dead code beleted!

* bugfixes

* move sql functions to psql.c

* move sort functions into ppagecache

* psql namespace

* change plibs.h include to pdbg.h

* cleanup includes
2025-03-18 19:52:15 +01:00
Levi Neely 9014edb99a
98 create a pdbg namespace (#139)
* pdbg split from plibs
* pdbg namespace
* add SSLDBGLVL build option
2025-03-13 20:28:09 +01:00
Levi Neely 9da561c767
131 remove custom memory management wrappers (#137)
* psync_free removed

* psync_malloc removed

* psync_realloc removed

* remove dead code

* remove pmemlock

* remove dead code
2025-03-11 22:27:30 +01:00
Levi Neely ce6033fe95
130 use trustworthy location for log and socket (#134)
* trustworthy location for log and socket
- socket in => $HOME/.pcloud/prpc.sock (mode 0600)
- debug log => $HOME/.pcloud/debug.log
* documentation updates
2025-03-11 19:03:58 +01:00
Levi Neely f437fe840e
prpc namespace and api cleanup (#122)
* prpc namespace and api cleanup
2025-03-09 17:13:35 +01:00
Levi Neely 1106028eba
WIP: Decompose namespaces and other cleanup (#94)
* papi namespace, remove some transient dependencies

* ptask namespace and cleanup

* pcache namespace and cleanup

* refactor pcallbacks into pqevent and ptevent

* pcryptofolder namespace and cleanup

* pcryptofolder missed a rename

* pdeflate namespace and cleanup

* pcrypto namespace

* pcrypto cleanup

* pcrypto consistency

* pcrypto more consistency

* pdevmon namespace and cleanup

* pdiff namespace

* pdownload namespace and cleanup

* pstatus namespace and cleanup

* pfileops namespace, fix header inlining abuse

* pfoldersync API, start chipping away at the psynclib monster

* pfscrypto namespace

* plocks namespace

* pnotify namespace

* pnotify formatting

* prpc namespace (got rid of confusing "overlay")

* pp2p namespace and cleanup

* ppagecache namespace

* ppassword namespace

* ppathstatus namespace

* prunratelimited => prun with throttling

* pscanner.c => psuggest namespace

* ptimer namespace

* ptools namespace (move to putil namespace someday)

* ptree namespace

* moved public link definitions into publiclinks.h, no clear namespace here though...

* pupload namespace

* formatting

* pcrc32c namespace
2025-03-01 22:21:54 +01:00