Tuesday, April 26, 2022

Re: update net/rsync 3.2.4

Index: Makefile
===================================================================
RCS file: /cvs/ports/net/rsync/Makefile,v
retrieving revision 1.92
diff -u -p -u -p -r1.92 Makefile
--- Makefile 20 Apr 2022 08:43:59 -0000 1.92
+++ Makefile 26 Apr 2022 23:12:45 -0000
@@ -1,7 +1,6 @@
COMMENT = mirroring/synchronization over low bandwidth links

-DISTNAME = rsync-3.2.3
-REVISION = 1
+DISTNAME = rsync-3.2.4
CATEGORIES = net
HOMEPAGE = https://rsync.samba.org/

@@ -16,6 +15,12 @@ WANTLIB = c crypto
MASTER_SITES = https://rsync.samba.org/ftp/rsync/src/ \
https://ftp.funet.fi/pub/mirrors/samba.org/pub/rsync/src/

+MODULES = lang/python
+
+MODPY_RUNDEP = No
+
+BUILD_DEPENDS = textproc/py-commonmark${MODPY_FLAVOR}
+
SEPARATE_BUILD =Yes
CONFIGURE_STYLE =gnu
CONFIGURE_ARGS =--disable-lz4 \
@@ -23,10 +28,18 @@ CONFIGURE_ARGS =--disable-lz4 \
--disable-zstd \
--with-included-popt \
--with-included-zlib \
+ --with-rrsync \
--with-rsyncd-conf="${SYSCONFDIR}/rsyncd.conf" \
--with-rsh=/usr/bin/ssh \
+ --with-nobody-user=_rsync \
--with-nobody-group=_rsync

+.include <bsd.port.arch.mk>
+
+.if ${ARCH:Mamd64}
+CONFIGURE_ARGS +=--enable-md5-asm
+.endif
+
.if ${FLAVOR:Miconv}
CONFIGURE_ENV +=CPPFLAGS='-I${LOCALBASE}/include' \
LDFLAGS='-L${LOCALBASE}/lib'
@@ -38,12 +51,10 @@ DOCDIR = ${PREFIX}/share/doc/rsync
DEBUG_PACKAGES = ${BUILD_PACKAGES}

pre-configure:
- ${SUBST_CMD} ${WRKSRC}/rsyncd.conf.5 \
- ${WRKSRC}/support/rrsync
+ ${SUBST_CMD} ${WRKSRC}/support/rrsync

post-install:
${INSTALL_DATA_DIR} ${DOCDIR}
${INSTALL_DATA} ${WRKSRC}/tech_report.tex ${DOCDIR}
- ${INSTALL_SCRIPT} ${WRKSRC}/support/rrsync ${PREFIX}/bin

.include <bsd.port.mk>
Index: distinfo
===================================================================
RCS file: /cvs/ports/net/rsync/distinfo,v
retrieving revision 1.31
diff -u -p -u -p -r1.31 distinfo
--- distinfo 26 Aug 2020 12:15:56 -0000 1.31
+++ distinfo 26 Apr 2022 23:12:45 -0000
@@ -1,2 +1,2 @@
-SHA256 (rsync-3.2.3.tar.gz) = vsw8UEzupJn0FnomAEDM9Nny75SZrVaDwXmmlxRs5Q4=
-SIZE (rsync-3.2.3.tar.gz) = 1069784
+SHA256 (rsync-3.2.4.tar.gz) = b3YYONCAUrC2V5z39nN9k+R/AfTaBMXSTTRHt/Kl+tE=
+SIZE (rsync-3.2.4.tar.gz) = 1114853
Index: patches/patch-compat_c
===================================================================
RCS file: patches/patch-compat_c
diff -N patches/patch-compat_c
--- patches/patch-compat_c 11 Mar 2022 19:47:20 -0000 1.2
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,14 +0,0 @@
-https://github.com/WayneD/rsync/issues/84
-
-Index: compat.c
---- compat.c.orig
-+++ compat.c
-@@ -705,7 +705,7 @@ void setup_protocol(int f_out,int f_in)
- do_negotiated_strings = 1;
- compat_flags |= CF_VARINT_FLIST_FLAGS;
- }
-- if (strchr(client_info, 'V') != NULL) { /* Support a pre-release 'V' that got superseded */
-+ if (!local_server && strchr(client_info, 'V') != NULL) { /* Support a pre-release 'V' that got superseded */
- if (!write_batch)
- compat_flags |= CF_VARINT_FLIST_FLAGS;
- write_byte(f_out, compat_flags);
Index: patches/patch-configure_sh
===================================================================
RCS file: patches/patch-configure_sh
diff -N patches/patch-configure_sh
--- patches/patch-configure_sh 11 Mar 2022 19:47:20 -0000 1.7
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,12 +0,0 @@
-Index: configure.sh
---- configure.sh.orig
-+++ configure.sh
-@@ -4908,7 +4908,7 @@ fi
-
-
- cat >>confdefs.h <<_ACEOF
--#define NOBODY_USER "nobody"
-+#define NOBODY_USER "_rsync"
- _ACEOF
-
-
Index: patches/patch-receiver_c
===================================================================
RCS file: patches/patch-receiver_c
diff -N patches/patch-receiver_c
--- patches/patch-receiver_c 11 Mar 2022 19:47:20 -0000 1.6
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,17 +0,0 @@
-Fixes regression introduced with commit 3a7bf54ad520 (A resumed
-partial-dir file is transferred in-place.)
-
-Fixes https://github.com/WayneD/rsync/issues/192
-
-Index: receiver.c
---- receiver.c.orig
-+++ receiver.c
-@@ -878,7 +878,7 @@ int recv_files(int f_in, int f_out, char *local_name)
- do_unlink(partialptr);
- handle_partial_dir(partialptr, PDIR_DELETE);
- }
-- } else if (keep_partial && partialptr && !one_inplace) {
-+ } else if (keep_partial && partialptr && (!one_inplace || delay_updates)) {
- if (!handle_partial_dir(partialptr, PDIR_CREATE)) {
- rprintf(FERROR,
- "Unable to create partial-dir for %s -- discarding %s.\n",
Index: patches/patch-rsync_1
===================================================================
RCS file: patches/patch-rsync_1
diff -N patches/patch-rsync_1
--- patches/patch-rsync_1 11 Mar 2022 19:47:20 -0000 1.9
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,12 +0,0 @@
-Index: rsync.1
---- rsync.1.orig
-+++ rsync.1
-@@ -4253,7 +4253,7 @@ documentation.
- .IP "\fBUSER\fP or \fBLOGNAME\fP"
- The USER or LOGNAME environment variables are used to determine the default
- username sent to an rsync daemon. If neither is set, the username defaults
--to "nobody".
-+to "_rsync".
- .IP "\fBHOME\fP"
- The HOME environment variable is used to find the user's default .cvsignore
- file.
Index: patches/patch-rsync_1_md
===================================================================
RCS file: patches/patch-rsync_1_md
diff -N patches/patch-rsync_1_md
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-rsync_1_md 26 Apr 2022 23:12:45 -0000
@@ -0,0 +1,12 @@
+Index: rsync.1.md
+--- rsync.1.md.orig
++++ rsync.1.md
+@@ -4417,7 +4417,7 @@ file is included or excluded.
+
+ The USER or LOGNAME environment variables are used to determine the default
+ username sent to an rsync daemon. If neither is set, the username defaults
+- to "nobody". If both are set, `USER` takes precedence.
++ to "_rsync". If both are set, `USER` takes precedence.
+
+ 0. `RSYNC_PARTIAL_DIR`
+
Index: patches/patch-rsyncd_conf_5
===================================================================
RCS file: patches/patch-rsyncd_conf_5
diff -N patches/patch-rsyncd_conf_5
--- patches/patch-rsyncd_conf_5 11 Mar 2022 19:47:20 -0000 1.10
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,74 +0,0 @@
-Index: rsyncd.conf.5
---- rsyncd.conf.5.orig
-+++ rsyncd.conf.5
-@@ -68,12 +68,11 @@ and a single line something like this to /etc/inetd.co
- .RS 4
- .P
- .nf
--rsync stream tcp nowait root /usr/bin/rsync rsyncd --daemon
-+rsync stream tcp nowait root ${PREFIX}/rsync rsyncd --daemon
- .fi
- .RE
- .P
--Replace "/usr/bin/rsync" with the path to where you have rsync installed on
--your system. You will then need to send inetd a HUP signal to tell it to
-+You will then need to send inetd a HUP signal to tell it to
- reread its config file.
- .P
- Note that you should \fBnot\fP send the rsync daemon a HUP signal to force it to
-@@ -438,7 +437,7 @@ This parameter specifies the user name or user ID that
- and from that module should take place as when the daemon was run as root.
- In combination with the "gid" parameter this determines what file
- permissions are available. The default when run by a super-user is to
--switch to the system's "nobody" user. The default for a non-super-user is
-+switch to the system's "_rsync" user. The default for a non-super-user is
- to not try to change the user. See also the "gid" parameter.
- .IP
- The RSYNC_USER_NAME environment variable may be used to request that rsync
-@@ -458,7 +457,7 @@ accessing the module. The first one will be the defau
- extra ones be set as supplemental groups. You may also specify a "\fB*\fP" as
- the first gid in the list, which will be replaced by all the normal groups
- for the transfer's user (see "uid"). The default when run by a super-user
--is to switch to your OS's "nobody" (or perhaps "nogroup") group with no
-+is to switch to the "_rsync" group with no
- other supplementary groups. The default for a non-super-user is to not
- change any group attributes (and indeed, your OS may not allow a
- non-super-user to try to change their group settings).
-@@ -632,7 +631,7 @@ require that you specify a group password if you do no
- passwords.
- .IP
- There is no default for the "secrets file" parameter, you must choose a
--name (such as \fB/etc/rsyncd.secrets\fP). The file must normally not be
-+name (such as \fB${SYSCONFDIR}/rsyncd.secrets\fP). The file must normally not be
- readable by "other"; see "strict modes". If the file is not found or is
- rejected, no logins for a "user auth" module will be possible.
- .IP "\fBstrict\ modes\fP"
-@@ -1192,8 +1191,8 @@ A more sophisticated example would be:
- .RS 4
- .P
- .nf
--uid = nobody
--gid = nobody
-+uid = _rsync
-+gid = _rsync
- use chroot = yes
- max connections = 4
- syslog facility = local5
-@@ -1219,7 +1218,7 @@ pid file = /var/run/rsyncd.pid
- path = /data/cvs
- comment = CVS repository (requires authentication)
- auth users = tridge, susan
-- secrets file = /etc/rsyncd.secrets
-+ secrets file = ${SYSCONFDIR}/rsyncd.secrets
- .fi
- .RE
- .P
-@@ -1234,7 +1233,7 @@ susan:herpass
- .P
- .SH "FILES"
- .P
--/etc/rsyncd.conf or rsyncd.conf
-+${SYSCONFDIR}/rsyncd.conf or rsyncd.conf
- .P
- .SH "SEE ALSO"
- .P
Index: patches/patch-rsyncd_conf_5_md
===================================================================
RCS file: patches/patch-rsyncd_conf_5_md
diff -N patches/patch-rsyncd_conf_5_md
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-rsyncd_conf_5_md 26 Apr 2022 23:12:45 -0000
@@ -0,0 +1,32 @@
+Index: rsyncd.conf.5.md
+--- rsyncd.conf.5.md.orig
++++ rsyncd.conf.5.md
+@@ -474,7 +474,7 @@ the values of parameters. See the GLOBAL PARAMETERS s
+ and from that module should take place as when the daemon was run as root.
+ In combination with the "[gid](#)" parameter this determines what file
+ permissions are available. The default when run by a super-user is to
+- switch to the system's "nobody" user. The default for a non-super-user is
++ switch to the system's "_rsync" user. The default for a non-super-user is
+ to not try to change the user. See also the "[gid](#)" parameter.
+
+ The RSYNC_USER_NAME environment variable may be used to request that rsync
+@@ -492,7 +492,7 @@ the values of parameters. See the GLOBAL PARAMETERS s
+ extra ones be set as supplemental groups. You may also specify a "`*`" as
+ the first gid in the list, which will be replaced by all the normal groups
+ for the transfer's user (see "[uid](#)"). The default when run by a super-user
+- is to switch to your OS's "nobody" (or perhaps "nogroup") group with no
++ is to switch to the "_rsync" group with no
+ other supplementary groups. The default for a non-super-user is to not
+ change any group attributes (and indeed, your OS may not allow a
+ non-super-user to try to change their group settings).
+@@ -1170,8 +1170,8 @@ A simple rsyncd.conf file that allow anonymous rsync t
+ A more sophisticated example would be:
+
+ > ```
+-> uid = nobody
+-> gid = nobody
++> uid = _rsync
++> gid = _rsync
+ > use chroot = yes
+ > max connections = 4
+ > syslog facility = local5
Index: patches/patch-support_rrsync
===================================================================
RCS file: /cvs/ports/net/rsync/patches/patch-support_rrsync,v
retrieving revision 1.4
diff -u -p -u -p -r1.4 patch-support_rrsync
--- patches/patch-support_rrsync 11 Mar 2022 19:47:20 -0000 1.4
+++ patches/patch-support_rrsync 26 Apr 2022 23:12:45 -0000
@@ -1,12 +1,12 @@
Index: support/rrsync
--- support/rrsync.orig
+++ support/rrsync
-@@ -11,7 +11,7 @@ use File::Glob ':glob';
+@@ -10,7 +10,7 @@

- # You may configure these values to your liking. See also the section
- # of options if you want to disable any options that rsync accepts.
--use constant RSYNC => '/usr/bin/rsync';
-+use constant RSYNC => '${PREFIX}/bin/rsync';
- use constant LOGFILE => 'rrsync.log';
+ # You may configure these 2 values to your liking. See also the section of
+ # short & long options if you want to disable any options that rsync accepts.
+-RSYNC = '/usr/bin/rsync'
++RSYNC = '${PREFIX}/bin/rsync'
+ LOGFILE = 'rrsync.log' # NOTE: the file must exist for a line to be appended!

- my $Usage = <<EOM;
+ # The following options are mainly the options that a client rsync can send
Index: pkg/PLIST
===================================================================
RCS file: /cvs/ports/net/rsync/pkg/PLIST,v
retrieving revision 1.16
diff -u -p -u -p -r1.16 PLIST
--- pkg/PLIST 11 Mar 2022 19:47:20 -0000 1.16
+++ pkg/PLIST 26 Apr 2022 23:12:45 -0000
@@ -4,6 +4,7 @@
bin/rrsync
@bin bin/rsync
bin/rsync-ssl
+@man man/man1/rrsync.1
@man man/man1/rsync-ssl.1
@man man/man1/rsync.1
@man man/man5/rsyncd.conf.5
Index: Makefile
===================================================================
RCS file: /cvs/ports/net/rsync/Makefile,v
retrieving revision 1.91
diff -u -p -u -p -r1.91 Makefile
--- Makefile 11 Mar 2022 19:47:20 -0000 1.91
+++ Makefile 25 Apr 2022 23:16:31 -0000
@@ -1,7 +1,7 @@
COMMENT = mirroring/synchronization over low bandwidth links

DISTNAME = rsync-3.2.3
-REVISION = 0
+REVISION = 1
CATEGORIES = net
HOMEPAGE = https://rsync.samba.org/

Index: patches/patch-zlib_deflate_c
===================================================================
RCS file: patches/patch-zlib_deflate_c
diff -N patches/patch-zlib_deflate_c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-zlib_deflate_c 25 Apr 2022 23:16:31 -0000
@@ -0,0 +1,162 @@
+commit 1de71e8a7870fa1be29f562df61f4c5c4685818f
+from: Michal Ruprich <michalruprich@gmail.com>
+date: Mon Apr 11 15:50:50 2022 UTC
+via: GitHub <noreply@github.com>
+
+Fix for CVE-2018-25032 in zlib (#306)
+
+Index: zlib/deflate.c
+--- zlib/deflate.c.orig
++++ zlib/deflate.c
+@@ -227,11 +227,6 @@ int ZEXPORT deflateInit2_(strm, level, method, windowB
+ int wrap = 1;
+ static const char my_version[] = ZLIB_VERSION;
+
+- ushf *overlay;
+- /* We overlay pending_buf and d_buf+l_buf. This works since the average
+- * output size for (length,distance) codes is <= 24 bits.
+- */
+-
+ if (version == Z_NULL || version[0] != my_version[0] ||
+ stream_size != sizeof(z_stream)) {
+ return Z_VERSION_ERROR;
+@@ -300,10 +295,48 @@ int ZEXPORT deflateInit2_(strm, level, method, windowB
+
+ s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
+
+- overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
+- s->pending_buf = (uchf *) overlay;
+- s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L);
++ /* We overlay pending_buf and sym_buf. This works since the average size
++ * for length/distance pairs over any compressed block is assured to be 31
++ * bits or less.
++ *
++ * Analysis: The longest fixed codes are a length code of 8 bits plus 5
++ * extra bits, for lengths 131 to 257. The longest fixed distance codes are
++ * 5 bits plus 13 extra bits, for distances 16385 to 32768. The longest
++ * possible fixed-codes length/distance pair is then 31 bits total.
++ *
++ * sym_buf starts one-fourth of the way into pending_buf. So there are
++ * three bytes in sym_buf for every four bytes in pending_buf. Each symbol
++ * in sym_buf is three bytes -- two for the distance and one for the
++ * literal/length. As each symbol is consumed, the pointer to the next
++ * sym_buf value to read moves forward three bytes. From that symbol, up to
++ * 31 bits are written to pending_buf. The closest the written pending_buf
++ * bits gets to the next sym_buf symbol to read is just before the last
++ * code is written. At that time, 31*(n-2) bits have been written, just
++ * after 24*(n-2) bits have been consumed from sym_buf. sym_buf starts at
++ * 8*n bits into pending_buf. (Note that the symbol buffer fills when n-1
++ * symbols are written.) The closest the writing gets to what is unread is
++ * then n+14 bits. Here n is lit_bufsize, which is 16384 by default, and
++ * can range from 128 to 32768.
++ *
++ * Therefore, at a minimum, there are 142 bits of space between what is
++ * written and what is read in the overlain buffers, so the symbols cannot
++ * be overwritten by the compressed data. That space is actually 139 bits,
++ * due to the three-bit fixed-code block header.
++ *
++ * That covers the case where either Z_FIXED is specified, forcing fixed
++ * codes, or when the use of fixed codes is chosen, because that choice
++ * results in a smaller compressed block than dynamic codes. That latter
++ * condition then assures that the above analysis also covers all dynamic
++ * blocks. A dynamic-code block will only be chosen to be emitted if it has
++ * fewer bits than a fixed-code block would for the same set of symbols.
++ * Therefore its average symbol length is assured to be less than 31. So
++ * the compressed data for a dynamic block also cannot overwrite the
++ * symbols from which it is being constructed.
++ */
+
++ s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, 4);
++ s->pending_buf_size = (ulg)s->lit_bufsize * 4;
++
+ if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
+ s->pending_buf == Z_NULL) {
+ s->status = FINISH_STATE;
+@@ -311,8 +344,12 @@ int ZEXPORT deflateInit2_(strm, level, method, windowB
+ deflateEnd (strm);
+ return Z_MEM_ERROR;
+ }
+- s->d_buf = overlay + s->lit_bufsize/sizeof(ush);
+- s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize;
++ s->sym_buf = s->pending_buf + s->lit_bufsize;
++ s->sym_end = (s->lit_bufsize - 1) * 3;
++ /* We avoid equality with lit_bufsize*3 because of wraparound at 64K
++ * on 16 bit machines and because stored blocks are restricted to
++ * 64K-1 bytes.
++ */
+
+ s->level = level;
+ s->strategy = strategy;
+@@ -473,7 +510,7 @@ int ZEXPORT deflatePrime (strm, bits, value)
+
+ if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ s = strm->state;
+- if ((Bytef *)(s->d_buf) < s->pending_out + ((Buf_size + 7) >> 3))
++ if (s->sym_buf < s->pending_out + ((Buf_size + 7) >> 3))
+ return Z_BUF_ERROR;
+ do {
+ put = Buf_size - s->bi_valid;
+@@ -1022,7 +1059,6 @@ int ZEXPORT deflateCopy (dest, source)
+ #else
+ deflate_state *ds;
+ deflate_state *ss;
+- ushf *overlay;
+
+
+ if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) {
+@@ -1042,8 +1078,7 @@ int ZEXPORT deflateCopy (dest, source)
+ ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
+ ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos));
+ ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos));
+- overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2);
+- ds->pending_buf = (uchf *) overlay;
++ ds->pending_buf = (uchf *) ZALLOC(dest, ds->lit_bufsize, 4);
+
+ if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
+ ds->pending_buf == Z_NULL) {
+@@ -1057,8 +1092,7 @@ int ZEXPORT deflateCopy (dest, source)
+ zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
+
+ ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
+- ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush);
+- ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize;
++ ds->sym_buf = ds->pending_buf + ds->lit_bufsize;
+
+ ds->l_desc.dyn_tree = ds->dyn_ltree;
+ ds->d_desc.dyn_tree = ds->dyn_dtree;
+@@ -1737,7 +1771,7 @@ local block_state deflate_fast(s, flush)
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+- if (s->last_lit)
++ if (s->sym_next)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
+ }
+@@ -1878,7 +1912,7 @@ local block_state deflate_slow(s, flush)
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+- if (s->last_lit)
++ if (s->sym_next)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
+ }
+@@ -1953,7 +1987,7 @@ local block_state deflate_rle(s, flush)
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+- if (s->last_lit)
++ if (s->sym_next)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
+ }
+@@ -1992,7 +2026,7 @@ local block_state deflate_huff(s, flush)
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+- if (s->last_lit)
++ if (s->sym_next)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
+ }
Index: patches/patch-zlib_deflate_h
===================================================================
RCS file: patches/patch-zlib_deflate_h
diff -N patches/patch-zlib_deflate_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-zlib_deflate_h 25 Apr 2022 23:16:31 -0000
@@ -0,0 +1,65 @@
+commit 1de71e8a7870fa1be29f562df61f4c5c4685818f
+from: Michal Ruprich <michalruprich@gmail.com>
+date: Mon Apr 11 15:50:50 2022 UTC
+via: GitHub <noreply@github.com>
+
+Fix for CVE-2018-25032 in zlib (#306)
+
+Index: zlib/deflate.h
+--- zlib/deflate.h.orig
++++ zlib/deflate.h
+@@ -214,7 +214,7 @@ typedef struct internal_state {
+ /* Depth of each subtree used as tie breaker for trees of equal frequency
+ */
+
+- uchf *l_buf; /* buffer for literals or lengths */
++ uchf *sym_buf; /* buffer for distances and literals/lengths */
+
+ uInt lit_bufsize;
+ /* Size of match buffer for literals/lengths. There are 4 reasons for
+@@ -236,14 +236,9 @@ typedef struct internal_state {
+ * - I can't count above 4
+ */
+
+- uInt last_lit; /* running index in l_buf */
++ uInt sym_next; /* running index in sym_buf */
++ uInt sym_end; /* symbol table full when sym_next reaches this */
+
+- ushf *d_buf;
+- /* Buffer for distances. To simplify the code, d_buf and l_buf have
+- * the same number of elements. To use different lengths, an extra flag
+- * array would be necessary.
+- */
+-
+ ulg opt_len; /* bit length of current block with optimal trees */
+ ulg static_len; /* bit length of current block with static trees */
+ uInt matches; /* number of string matches in current block */
+@@ -322,20 +317,22 @@ void ZLIB_INTERNAL _tr_stored_block OF((deflate_state
+
+ # define _tr_tally_lit(s, c, flush) \
+ { uch cc = (c); \
+- s->d_buf[s->last_lit] = 0; \
+- s->l_buf[s->last_lit++] = cc; \
++ s->sym_buf[s->sym_next++] = 0; \
++ s->sym_buf[s->sym_next++] = 0; \
++ s->sym_buf[s->sym_next++] = cc; \
+ s->dyn_ltree[cc].Freq++; \
+- flush = (s->last_lit == s->lit_bufsize-1); \
++ flush = (s->sym_next == s->sym_end); \
+ }
+ # define _tr_tally_dist(s, distance, length, flush) \
+ { uch len = (length); \
+ ush dist = (distance); \
+- s->d_buf[s->last_lit] = dist; \
+- s->l_buf[s->last_lit++] = len; \
++ s->sym_buf[s->sym_next++] = dist; \
++ s->sym_buf[s->sym_next++] = dist >> 8; \
++ s->sym_buf[s->sym_next++] = len; \
+ dist--; \
+ s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
+ s->dyn_dtree[d_code(dist)].Freq++; \
+- flush = (s->last_lit == s->lit_bufsize-1); \
++ flush = (s->sym_next == s->sym_end); \
+ }
+ #else
+ # define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c)
Index: patches/patch-zlib_trees_c
===================================================================
RCS file: patches/patch-zlib_trees_c
diff -N patches/patch-zlib_trees_c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-zlib_trees_c 25 Apr 2022 23:16:31 -0000
@@ -0,0 +1,106 @@
+commit 1de71e8a7870fa1be29f562df61f4c5c4685818f
+from: Michal Ruprich <michalruprich@gmail.com>
+date: Mon Apr 11 15:50:50 2022 UTC
+via: GitHub <noreply@github.com>
+
+Fix for CVE-2018-25032 in zlib (#306)
+
+Index: zlib/trees.c
+--- zlib/trees.c.orig
++++ zlib/trees.c
+@@ -418,7 +418,7 @@ local void init_block(s)
+
+ s->dyn_ltree[END_BLOCK].Freq = 1;
+ s->opt_len = s->static_len = 0L;
+- s->last_lit = s->matches = 0;
++ s->sym_next = s->matches = 0;
+ }
+
+ #define SMALLEST 1
+@@ -943,7 +943,7 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len,
+
+ Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
+ opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
+- s->last_lit));
++ s->sym_next / 3));
+
+ if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
+
+@@ -1012,8 +1012,9 @@ int ZLIB_INTERNAL _tr_tally (s, dist, lc)
+ unsigned dist; /* distance of matched string */
+ unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
+ {
+- s->d_buf[s->last_lit] = (ush)dist;
+- s->l_buf[s->last_lit++] = (uch)lc;
++ s->sym_buf[s->sym_next++] = dist;
++ s->sym_buf[s->sym_next++] = dist >> 8;
++ s->sym_buf[s->sym_next++] = lc;
+ if (dist == 0) {
+ /* lc is the unmatched char */
+ s->dyn_ltree[lc].Freq++;
+@@ -1028,30 +1029,7 @@ int ZLIB_INTERNAL _tr_tally (s, dist, lc)
+ s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++;
+ s->dyn_dtree[d_code(dist)].Freq++;
+ }
+-
+-#ifdef TRUNCATE_BLOCK
+- /* Try to guess if it is profitable to stop the current block here */
+- if ((s->last_lit & 0x1fff) == 0 && s->level > 2) {
+- /* Compute an upper bound for the compressed length */
+- ulg out_length = (ulg)s->last_lit*8L;
+- ulg in_length = (ulg)((long)s->strstart - s->block_start);
+- int dcode;
+- for (dcode = 0; dcode < D_CODES; dcode++) {
+- out_length += (ulg)s->dyn_dtree[dcode].Freq *
+- (5L+extra_dbits[dcode]);
+- }
+- out_length >>= 3;
+- Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ",
+- s->last_lit, in_length, out_length,
+- 100L - out_length*100L/in_length));
+- if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1;
+- }
+-#endif
+- return (s->last_lit == s->lit_bufsize-1);
+- /* We avoid equality with lit_bufsize because of wraparound at 64K
+- * on 16 bit machines and because stored blocks are restricted to
+- * 64K-1 bytes.
+- */
++ return (s->sym_next == s->sym_end);
+ }
+
+ /* ===========================================================================
+@@ -1064,13 +1042,14 @@ local void compress_block(s, ltree, dtree)
+ {
+ unsigned dist; /* distance of matched string */
+ int lc; /* match length or unmatched char (if dist == 0) */
+- unsigned lx = 0; /* running index in l_buf */
++ unsigned sx = 0; /* running index in sym_buf */
+ unsigned code; /* the code to send */
+ int extra; /* number of extra bits to send */
+
+- if (s->last_lit != 0) do {
+- dist = s->d_buf[lx];
+- lc = s->l_buf[lx++];
++ if (s->sym_next != 0) do {
++ dist = s->sym_buf[sx++] & 0xff;
++ dist += (unsigned)(s->sym_buf[sx++] & 0xff) << 8;
++ lc = s->sym_buf[sx++];
+ if (dist == 0) {
+ send_code(s, lc, ltree); /* send a literal byte */
+ Tracecv(isgraph(lc), (stderr," '%c' ", lc));
+@@ -1095,11 +1074,10 @@ local void compress_block(s, ltree, dtree)
+ }
+ } /* literal or match pair ? */
+
+- /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */
+- Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx,
+- "pendingBuf overflow");
++ /* Check that the overlay between pending_buf and sym_buf is ok: */
++ Assert(s->pending < s->lit_bufsize + sx, "pendingBuf overflow");
+
+- } while (lx < s->last_lit);
++ } while (sx < s->sym_next);
+
+ send_code(s, END_BLOCK, ltree);
+ }
Nam Nguyen writes:

> Two diffs are attached, incorporating feedback from espie@ sthen@ and
> naddy@. Feedback is welcome. OK?
>
> 1. rsync_stable.diff: intended for -stable. brings bundled zlib from
> rsync 3.2.4 to 3.2.3 with this commit:
> https://github.com/WayneD/rsync/commit/1de71e8a7870fa1be29f562df61f4c5c4685818f
>

>
> 2. rsync.diff:
> - --enable-md5-asm (from naddy@ to retain
> checking whether to enable MD5 ASM optimizations... yes (x86_64))
> - --with-nobody-user=_rsync
> - install rrsync(1) man page. If --with-rrsync is used to build and
> install the man page, it introduces python3 as a dependency to run
> ${WRKSRC}/md-convert script. Drawback: rrsync(1) prints 3.2.4pre4
> - remove compat.c (fixed)
> - remove configure.sh (use --with-nobody-user=_rsync instead)
> - remove receiver.c (upstreamed)
> - rsync(1) patch: churn
> - rsyncd.conf patch: add missing ${PREFIX}/bin and remove ${SYSCONFDIR}
> bits
> - rrsync patch: churn and moves from perl to python3

rsync_stable.diff is the same.

Here is a fresh rsync.diff that additionally:
- --with-rrsync and brings in python as BUILD_DEPENDS (not RUN_DEPENDS)
and textproc/py-commonmark, needed to run
${WRKSRC}/md-convert. md-convert converts rsync.1.md --> rsync.1, so
remove patches for man pages and patch markdown files instead.
- remove rsyncd.conf.5 from ${SUBST_CMD} as /usr/local/bin correctly
appears in man page.
- --enable-md5-asm only on amd64, as configure check fails on other
platforms

>
> I plan to do the following soon (these don't have to hold up the
> update):
> - add zstd flavor
> - port py-braceexpand for better rrsync support

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