Commit graph

409 commits

Author SHA1 Message Date
Brooks Davis
695639d2f4 libc: Remove empty comments in Symbol.map
These were left over from $FreeBSD$ removal.

Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D42612

(cherry picked from commit 1ca63a8219b88b752b064d19bd3428c61dbcf1f9)
2023-12-13 22:08:13 +00:00
Alan Somers
60314995ef libc/libc/rpc: refactor some global variables
* Combine dg_fd_locks and dg_cv into one array.
* Similarly for vc_fd_locks and vc_cv
* Turn some macros into inline functions

This is a mostly cosmetic change to make refactoring these strutures in
a future commit easier.

Sponsored by:	Axcient
Reviewed by:	kib
Differential Revision: https://reviews.freebsd.org/D42597

(cherry picked from commit a5c2f4e939430f0048136c39fb9fa6093d401905)

lib/libc/rpc: switch the per-fd structs in clnt_{dg,vc}.c to RB Trees

This saves oodles of memory, especially when "ulimit -n" is large.  It
also prevents a buffer overflow if getrlimit should fail.

Also replace per-fd condvars with mutexes to simplify the code.

PR:		274968
Sponsored by:	Axcient
Reviewed by:	kib
Differential Revision: https://reviews.freebsd.org/D42597

(cherry picked from commit 24938f9311c9c9acc1ce747f4e6a088c2dbc967d)
2023-11-29 20:16:16 -07:00
Warner Losh
4025b5b527 libc: Purge unneeded cdefs.h
These sys/cdefs.h are not needed. Purge them. They are mostly left-over
from the $FreeBSD$ removal. A few in libc are still required for macros
that cdefs.h defines. Keep those.

Sponsored by:		Netflix
Differential Revision:	https://reviews.freebsd.org/D42385

(cherry picked from commit 559a218c9b257775fb249b67945fe4a05b7a6b9f)
2023-11-26 21:20:09 -07:00
Warner Losh
05248206f7 Remove $FreeBSD$: one-line bare tag
Remove /^\s*\$FreeBSD\$$\n/
2023-08-16 11:55:20 -06:00
Warner Losh
b2c76c41be Remove $FreeBSD$: one-line nroff pattern
Remove /^\.\\"\s*\$FreeBSD\$$\n/
2023-08-16 11:55:15 -06:00
Warner Losh
d0b2dbfa0e Remove $FreeBSD$: one-line sh pattern
Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/
2023-08-16 11:55:03 -06:00
Warner Losh
1d386b48a5 Remove $FreeBSD$: one-line .c pattern
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
2023-08-16 11:54:42 -06:00
Warner Losh
2a63c3be15 Remove $FreeBSD$: one-line .c comment pattern
Remove /^/[*/]\s*\$FreeBSD\$.*\n/
2023-08-16 11:54:29 -06:00
Warner Losh
42b388439b Remove $FreeBSD$: one-line .h pattern
Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/
2023-08-16 11:54:23 -06:00
Warner Losh
b3e7694832 Remove $FreeBSD$: two-line .h pattern
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
2023-08-16 11:54:16 -06:00
Warner Losh
4d846d260e spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix
2023-05-12 10:44:03 -06:00
Rick Macklem
032b04626b rpcb_clnt.c: Do not force use of UDP
Without this patch, the code in the rpcbind client forces
the use of UDP.  A comment notes that some rpcbind servers
only support UDP.  This makes NFSv3 mounts to Azure servers
impossible, since they require use of TCP for rpcbind.
Since the comment is very old (imported from NetBSD in 2001)
and I do not believe any UDP only rpcbind servers will
still exist, this patch comments out the code that forces
use of UDP, so that NFSv3 mounts to Azure servers can work.

For an NFSv3 mount, the "udp" mount option will still
make mount_nfs use UDP for rpcbind so that can be used
as a workaround for any old NFSv3 server that only
supports rpcbind over UDP (if any such server still exists).

I asked if doing this change is appropriate on freebsd-fs@
and I only got one reply (off list) that supported doing
the change.

PR:	267301
MFC after:	1 month
2022-11-13 12:16:06 -08:00
John Baldwin
a2e41a585b libc rpc: Fix mismatches in prototypes for array bounds.
Various RPC functions used a bare pointer in function prototypes to
describe fixed-length buffer arguments but used a fixed-length array
in the function definition.  The manual page for these functions
describes the parameters as being fixed-length buffers, so update
the prototypes to match the definitions.

Reviewed by:	imp, emaste
Reported by:	GCC -Warray-parameter
Differential Revision:	https://reviews.freebsd.org/D36757
2022-09-28 14:01:36 -07:00
Gordon Bergling
5c49e1cbea rpc(3): Fix two typos in source code comments
- s/alloctaed/allocated/

Obtained from:	NetBSD
MFC after:	3 days
2022-04-02 09:33:24 +02:00
Gordon Bergling
066e393f8f libc: Fix a typo in a source code comment
- s/compnent/component/

MFC after:	3 days
2022-03-28 19:34:14 +02:00
Konstantin Belousov
6d06bc688e libc clnt_com_create: relock rpcsoc_lock earlier when port is obtained from portmapper
Otherwise on mapper failure we goto error handler which expect
rpscoc_lock owned, but we do not.

PR:	261051
Reported by:	RyanCai <ryancaicse@gmail.com>
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2022-01-09 07:36:06 +02:00
Konstantin Belousov
16b238b740 libc/rpc/getrpcent.c: Mark write-only variables as unused
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2021-11-29 17:39:50 +02:00
Gordon Bergling
0d55bc8eb2 rpc(3): Correct a few common typos in source code comments
- s/therfore/therefor/
- s/activte/active/

Obtained from:	NetBSD
MFC after:	3 days
2021-08-22 08:16:09 +02:00
Ceri Davies
1760799b4c Remove references to timed(8)
There are still references to timed(8) and timedc(8) in the base system,
which were removed in 2018.

PR: 255425
Reported by:	Ceri Davies <ceri at submonkey dot net>
Reviewed by:	ygy, gbe
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D30232
2021-05-13 09:53:08 +02:00
Edward Tomasz Napierala
5299d64b2b libc: fix buffer overrun in getrpcport(3)
Reviewed By:	markj
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D27332
2021-01-31 21:42:02 +00:00
Brooks Davis
6671366a55 Fix -Wvoid-pointer-to-enum-cast warnings.
This pattern is used in callbacks with void * data arguments and seems
both relatively uncommon and relatively harmless.  Silence the warning
by casting through uintptr_t.

This warning is on by default in Clang 11.

Reviewed by:	arichardson
Obtained from:	CheriBSD (partial)
MFC after:	1 week
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D24425
2020-04-15 18:15:58 +00:00
Mark Johnston
a3a706387e Fix a use of an uninitialized pointer in xdr_rpcbs_rmtcalllist().
This appears to have been introduced in r173763.  Also fix the confusing
indentation that probably led to the bug in the first place.

PR:		243759
Diagnosed by:	martin@lispworks.com
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2020-02-05 16:10:09 +00:00
Konstantin Belousov
6b462d2762 Increase YPMAXRECORD to 16M to be compatible with Linux.
Since YP protocol definition uses the constant to declare
variable-size opaque byte strings, the change should be binary
compatible with existing installations which do not expose keys or
values larger than 1024 bytes.

All uses of local variables with YPMAXRECORD sizes were removed to
avoid insane stack use.  On the other hand, variables with static
lifetime should be fine and only result in increased VA use.

Glibc made same change, increasing the allowed length for keys and
values in YP to 16M, in 2013.

Reviewed by:	markj
Discussed with:	ian
Sponsored by:	Mellanox Technologies
MFC after:	3 weeks
Differential revision:	https://reviews.freebsd.org/D20900
2019-08-12 20:27:33 +00:00
Brad Davis
34da9e3802 Fix CONFS to append the value in this case.
Approved by:	re (blanket, pkgbase), will (mentor)
2018-09-18 01:38:44 +00:00
Brad Davis
77e4a39103 Move rpc and netconfig to lib/libc/rpc/
This uses relative paths to make it more specific to avoid any potential
future problems with .PATH and leverages CONFS.

libc was picked as the destination location for these because of the syscalls
that use these files as the lowest level place they are referenced.

Approved by:	re (gjb), will (mentor)
Differential Revision:	https://reviews.freebsd.org/D17163
2018-09-17 19:20:50 +00:00
Eitan Adler
7ab39aa526 des_crypt.3: Fix typo.
Obtained from:	DragonflyBSD (a78d083cf561cf325e8f1a151251b8901159e2ce)
MFC After:	3 days
2018-03-07 09:31:27 +00:00
Pedro F. Giffuni
2614eccf45 su_data: correct macro expansion.
Protect su_data() users from strange macro expansion.

Obtained from:	linux libtirpc
2018-02-08 14:53:34 +00:00
Pedro F. Giffuni
d915a14ef0 libc: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-25 17:12:48 +00:00
Pedro F. Giffuni
8a16b7a18f General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00
Pedro F. Giffuni
df57947f08 spdx: initial adoption of licensing ID tags.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Initially, only tag files that use BSD 4-Clause "Original" license.

RelNotes:	yes
Differential Revision:	https://reviews.freebsd.org/D13133
2017-11-18 14:26:50 +00:00
Xin LI
94c5b2d124 Revert r300385 and r300624 which was false positive
reported by cppcheck.

dup_ncp() tries to allocate a buffer of MAXNETCONFIGLINE
as tmp, which is then assigned to p->nc_netid via strcpy,
so the free(p->nc_netid) would have correctly released
the memory in case nc_lookups() fails, therefore, the
allerged leak never existed.

MFC after:	3 days
2017-06-30 07:04:10 +00:00
Xin LI
091867a611 Fix use-after-free introduced in r300388.
In r300388, endnetconfig() was called on nc_handle which would release
the associated netconfig structure, which means tmpnconf->nc_netid
would be a use-after-free.

Solve this by doing endnetconfig() in return paths instead.

Reported by:	jemalloc via kevlo
Reviewed by:	cem, ngie (earlier version)
MFC after:	3 days
Differential Revision:    https://reviews.freebsd.org/D11288
2017-06-22 05:10:16 +00:00
Xin LI
6448ec89e7 * limit size of buffers to RPC_MAXDATASIZE
* don't leak memory
 * be more picky about bad parameters

From:

https://raw.githubusercontent.com/guidovranken/rpcbomb/master/libtirpc_patch.txt
https://github.com/guidovranken/rpcbomb/blob/master/rpcbind_patch.txt

via NetBSD.

Reviewed by:	emaste, cem (earlier version)
Differential Revision:	https://reviews.freebsd.org/D10922
MFC after:	3 days
2017-06-01 06:12:25 +00:00
Brooks Davis
efa2501ed6 Support clnt_raw's use of FD_SETSIZE as a fake file descriptor.
Accomplish this by allocating space for it in __svc_xports and allowing
it to be registered.  The failure to allocate space was causing an
out-of-bounds read in svc_getreq_common().  The failure to register
caused PR 211804.

The bug was found with CHERI bounds checking.

PR:		211804
Obtained from:	CheriBSD
Sponsored by:	DARPA, AFRL
Reviewed by:	ngie
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D10528
2017-05-01 20:04:07 +00:00
Pedro F. Giffuni
9f36610f9e libc: provide some bounds-checking through reallocarray(3).
reallocarray(3) is a non portable extension that originated in OpenBSD.
Given that it is already in FreeBSD's libc it is useful for the cases
where reallocation involves a multiplication.

MFC after:		2 weeks
Differential Revision:	https://reviews.freebsd.org/D9955
2017-03-12 16:03:34 +00:00
Pedro F. Giffuni
8e60fa95cb libc/rpc: replace comma with semicolon when pertinent.
Uses of commas instead of a semicolons can easily go undetected. The comma
can serve as a statement separator but this shouldn't be abused when
statements are meant to be standalone.

Detected with devel/coccinelle following a hint from DragonFlyBSD.

MFC after:	1 month
2016-08-09 19:20:53 +00:00
Bryan Drewery
77c7a21036 Use on crypto.x and rpc.x from the source tree.
This fixes the build when DESTDIR may be blank or not yet populated.
It also fixes reproducibility.

Submitted by:	brooks
Approved by:	re (gjb)
Differential Revision:	https://reviews.freebsd.org/D6455
2016-06-28 19:53:16 +00:00
Pedro F. Giffuni
478eb9e9ca libc/rpc: Make use of some xdr_* macros. (part 2)
xdr_rpcproc, xdr_rpcprog and xdr_rpcvers were broken in older
versions of FreeBSD but fixed in r296394.  Give them some use
hoping they help make the code somewhat more readable.
2016-06-09 22:18:25 +00:00
Pedro F. Giffuni
ea21823d9f libc/rpc: Make use of some xdr_* macros.
xdr_rpcprog and xdr_rpcvers were broken in older versions of FreeBSD
but were fixed in r296394. Give them some use hoping they help make
the code somewhat more readable.
2016-06-09 19:44:47 +00:00
Kevin Lo
88609a6a7a Fix the rpcb_getaddr() definition to match its declaration.
Submitted by:	Sebastian Huber <sebastian dot huber at embedded-brains dot de>
2016-06-09 14:33:00 +00:00
Enji Cooper
3304ba9d70 Test for strchr(3) returning NULL, not 0
MFC after: 3 days
Reported by: coccinelle
Sponsored by: EMC / Isilon Storage Division
2016-06-08 23:17:30 +00:00
Enji Cooper
8f5cc69027 Fix up r300385
I accidentally glossed over the fact that tmp is manipulated via strchr, so
if we tried to free `tmp` after r300385, it would have crashed.

Create a separate pointer (tmp2) to track the original allocation of `tmp`,
and free `tmp2` if `p->nc_lookups` can't be malloced

MFC after: 4 days
X-MFC with: r300385
Reported by: Coverity
CID: 1356026
Sponsored by: EMC / Isilon Storage Division
2016-05-24 19:52:05 +00:00
Enji Cooper
3c048026b5 Remove redundant NULLing of outbuf_pmap
If reallocf ever failed, outbuf_pmap would already be NULL

MFC after: 1 week
X-MFC with: r300620
Reported by: cem
Sponsored by: EMC / Isilon Storage Division
2016-05-24 18:53:06 +00:00
Enji Cooper
75cd48a1c1 Use reallocf instead of malloc to fix leak with outbuf_pmap
The previous code overwrote outbuf_pmap's memory with malloc once per
loop iteration, which leaked its memory; use reallocf instead to ensure
that memory is properly free'd each loop iteration.

Add a outbuf_pmap = NULL in the failure case to avoid a double-free
at the bottom of the function.

Differential Revision: https://reviews.freebsd.org/D6495
MFC after: 1 week
Reported by: Coverity
CID: 1038776
Reviewed by: markj, pfgj
Sponsored by: EMC / Isilon Storage Division
2016-05-24 18:44:50 +00:00
Enji Cooper
f1209420eb nis_rpcent: don't leak resultbuf from yp_first(..)/yp_next(..)
If the buffer couldn't be adequately resized to accomodate an additional "\n",
it would leak resultbuf by breaking from the loop early

MFC after: 2 weeks
Reported by: Coverity
CID: 1016702
Sponsored by: EMC / Isilon Storage Division
2016-05-22 03:05:27 +00:00
Enji Cooper
b70cb0694b Call endnetconfig on nc_handle sooner to avoid leaking nc_handle if tmpnconf
was NULL

This would theoretically happen if the netconfig protocol family and protocol
semantics were never matched.

MFC after: 2 weeks
Reported by: Coverity
CID: 978179
Sponsored by: EMC / Isilon Storage Division
2016-05-22 02:53:11 +00:00
Enji Cooper
99d498608a getnetid(..): consistently fclose fd at the end of the function
This mutes a false positive with cppcheck, but also helps eliminate future
potential issues with this variable

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
2016-05-22 02:24:38 +00:00
Enji Cooper
3552a02626 Don't leak handle if svc_tp_create(..) succeeds and allocating a new
struct xlist object fails

MFC after: 1 week
Reported by: Coverity
CID: 978277
Sponsored by: EMC / Isilon Storage Division
2016-05-22 02:02:18 +00:00
Enji Cooper
9c11e6b093 Don't leak tmp if p->nc_lookups can't be malloced
MFC after: 1 week
Reported by: cppcheck
Sponsored by: EMC / Isilon Storage Division
2016-05-22 01:45:15 +00:00
Pedro F. Giffuni
32223c1b7d libc: spelling fixes.
Mostly on comments.
2016-04-30 01:24:24 +00:00