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that had slipped in. ok deraadt markus djm.
OpenBSD-Commit-ID: f5be055554ee93e6cc66b0053b590bef3728dbd6
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OpenBSD-Commit-ID: 612778e6d87ee865d0ba97d0a335f141cee1aa37
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While freezero() returns early if the pointer is NULL the tests for
NULL in callers are left to avoid warnings about passing an
uninitialised size argument across a function boundry.
ok deraadt@ djm@
OpenBSD-Commit-ID: 2660fa334fcc7cd05ec74dd99cb036f9ade6384a
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still confusing people, so add another comment explaining the special
handling of "localhost"; bz#3258
OpenBSD-Commit-ID: e6bf0f0fbf1c7092bf0dbd9c6eab105970b5b53a
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make the indenting a little more consistent too..
Fixes Solaris 2.6; reported by Tom G. Christensen
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OpenBSD-Commit-ID: 824baf9c59afc66a4637017e397b9b74a41684e7
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some arbitrary value < 0. errno is only updated in this case. Change all
(most?) callers of syscalls to follow this better, and let's see if this
strictness helps us in the future.
OpenBSD-Commit-ID: 48081f00db7518e3b712a49dca06efc2a5428075
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Patch from knweiss at gmail.com via -portable.
OpenBSD-Commit-ID: 2577465442f761a39703762c4f87a8dfcb918b4b
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be able to find out from where the request was comming.
Add the same logging for PermitListen violations which where not
logged at all.
Pointed out by Robert Kisteleki (robert AT ripe.net)
input markus
OK deraadt
OpenBSD-Commit-ID: 8a7d0f1b7175504c0d1dca8d9aca1588b66448c8
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blueflash.cc, ok deraadt
OpenBSD-Commit-ID: dbe4db381603909482211ffdd2b48abd72169117
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Avoids sending SIGPIPE to child processes after their parent exits
if they attempt to write to stderr.
Analysis and patch from JD Paul; patch reworked by Jakub Jelen and
myself. bz#2071; ok dtucker@
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with & ok markus@
OpenBSD-Commit-ID: 0b8279b56113cbd4011fc91315c0796b63dc862c
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API, started almost exactly six years ago.
This change stops including the old packet_* API by default and makes
each file that requires the old API include it explicitly. We will
commit file-by-file refactoring to remove the old API in consistent
steps.
with & ok markus@
OpenBSD-Commit-ID: 93c98a6b38f6911fd1ae025a1ec57807fb4d4ef4
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channel_init_channels() as we do it anyway in channel_handler_init() that we
call at the end of the function. Fix from Markus Schmidt via bz#2938
OpenBSD-Commit-ID: 74893638af49e3734f1e33a54af1b7ea533373ed
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channel_open_message() so we can use it in other debug messages
OpenBSD-Commit-ID: 9c3903ca28fcabad57f566c9d0045b41ab7d52ba
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disposition of channel's extended (stderr) fd; makes debugging some things a
bit easier. No behaviour change.
OpenBSD-Commit-ID: 483eb6467dc7d5dbca8eb109c453e7a43075f7ce
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OpenBSD-Commit-ID: aea3b5512ad681cd8710367d743e8a753d4425d9
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OpenBSD-Commit-ID: 2b1f9619259e222bbd4fe9a8d3a0973eafb9dd8d
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OpenBSD-Commit-ID: c968c1d29e392352383c0f9681fcc1e93620c4a9
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addresses may be listened on when the client requests remote forwarding (ssh
-R).
This is the converse of the existing PermitOpen directive and this
includes some refactoring to share much of its implementation.
feedback and ok markus@
OpenBSD-Commit-ID: 15a931238c61a3f2ac74ea18a98c933e358e277f
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after checking with codespell tool
(https://github.com/lucasdemarchi/codespell)
OpenBSD-Commit-ID: 373222f12d7ab606598a2d36840c60be93568528
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The file descriptors for socket, stdin, stdout and stderr
aren't necessarily distinct, so check if they are the same to avoid closing
the same fd several times.
ok djm
OpenBSD-Commit-ID: 60d71fd22e9a32f5639d4ba6e25a2f417fc36ac1
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Drop compatibility hacks for some ancient SSH
implementations, including ssh.com <=2.* and OpenSSH <= 3.*.
These versions were all released in or before 2001 and predate the
final SSH RFCs. The hacks in question aren't necessary for RFC-
compliant SSH implementations.
ok markus@
OpenBSD-Commit-ID: 4be81c67db57647f907f4e881fb9341448606138
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include the addr:port in bind/listen failure messages
OpenBSD-Commit-ID: fdadb69fe1b38692608809cf0376b71c2c28e58e
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Add optional rdomain qualifier to sshd_config's
ListenAddress option to allow listening on a different rdomain(4), e.g.
ListenAddress 0.0.0.0 rdomain 4
Upstream-ID: 24b6622c376feeed9e9be8b9605e593695ac9091
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fix inverted test on channel open failure path that
"upgraded" a transient failure into a fatal error; reported by sthen and also
seen by benno@; ok sthen@
Upstream-ID: b58b3fbb79ba224599c6cd6b60c934fc46c68472
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write the correct buffer when tunnel forwarding; doesn't
matter on OpenBSD (they are the same) but does matter on portable where we
use an output filter to translate os-specific tun/tap headers
Upstream-ID: f1ca94eff48404827b12e1d12f6139ee99a72284
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fix tunnel forwarding problem introduced in refactor;
reported by stsp@ ok markus@
Upstream-ID: 81a731cdae1122c8522134095d1a8b60fa9dcd04
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Add 'reverse' dynamic forwarding which combines dynamic
forwarding (-D) with remote forwarding (-R) where the remote-forwarded port
expects SOCKS-requests.
The SSH server code is unchanged and the parsing happens at the SSH
clients side. Thus the full SOCKS-request is sent over the forwarded
channel and the client parses c->output. Parsing happens in
channel_before_prepare_select(), _before_ the select bitmask is
computed in the pre[] handlers, but after network input processing
in the post[] handlers.
help and ok djm@
Upstream-ID: aa25a6a3851064f34fe719e0bf15656ad5a64b89
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Use explicit_bzero() instead of bzero() before free() to
prevent the compiler from optimizing away the bzero() call. OK djm@
Upstream-ID: cdc6197e64c9684c7250e23d60863ee1b53cef1d
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unused variable
Upstream-ID: 2f9ba09f2708993d35eac5aa71df910dcc52bac1
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fix tun/tap forwarding case in previous
Upstream-ID: 43ebe37a930320e24bca6900dccc39857840bc53
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Make remote channel ID a u_int
Previously we tracked the remote channel IDs in an int, but this is
strictly incorrect: the wire protocol uses uint32 and there is nothing
in-principle stopping a SSH implementation from sending, say, 0xffff0000.
In practice everyone numbers their channels sequentially, so this has
never been a problem.
ok markus@
Upstream-ID: b9f4cd3dc53155b4a5c995c0adba7da760d03e73
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refactor channels.c
Move static state to a "struct ssh_channels" that is allocated at
runtime and tracked as a member of struct ssh.
Explicitly pass "struct ssh" to all channels functions.
Replace use of the legacy packet APIs in channels.c.
Rework sshd_config PermitOpen handling: previously the configuration
parser would call directly into the channels layer. After the refactor
this is not possible, as the channels structures are allocated at
connection time and aren't available when the configuration is parsed.
The server config parser now tracks PermitOpen itself and explicitly
configures the channels code later.
ok markus@
Upstream-ID: 11828f161656b965cc306576422613614bea2d8f
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pass packet state down to some of the channels function
(more to come...); ok markus@
Upstream-ID: d8ce7a94f4059d7ac1e01fb0eb01de0c4b36c81b
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These shutdown() SHUT_RDWR are not needed before close()
ok djm markus claudio
Upstream-ID: 36f13ae4ba10f5618cb9347933101eb4a98dbcb5
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fix possible OOB strlen() in SOCKS4A hostname parsing;
ok markus@
Upstream-ID: c67297cbeb0e5a19d81752aa18ec44d31270cd11
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protocol handlers all get struct ssh passed; ok djm@
Upstream-ID: 0ca9ea2a5d01a6d2ded94c5024456a930c5bfb5d
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remove ssh1 references; ok djm@
Upstream-ID: fc23b7578e7b0a8daaec72946d7f5e58ffff5a3d
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remove SSH_CHANNEL_XXX_DRAINING (ssh1 only); ok djm@
Upstream-ID: e2e225b6ac67b84dd024f38819afff2554fafe42
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remove channel_input_close_confirmation (ssh1 only); ok
djm@
Upstream-ID: 8e7c8c38f322d255bb0294a5c0ebef53fdf576f1
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obliterate ssh1.h and some dead code that used it
ok markus@
Upstream-ID: 1ca9159a9fb95618f9d51e069ac8e1131a087343
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remove compat20/compat13/compat15 variables
ok markus@
Upstream-ID: 43802c035ceb3fef6c50c400e4ecabf12354691c
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Check for socket with and without screen number. From Apple and Jakob
Schlyter via bz#2341, with contributions from Ron Frederick, ok djm@
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Return true reason for port forwarding failures where
feasible rather than always "administratively prohibited". bz#2674, ok djm@
Upstream-ID: d901d9887951774e604ca970e1827afaaef9e419
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Remove channel_input_port_forward_request(); the only caller
was the recently-removed SSH1 server code so it's now dead code. ok markus@
Upstream-ID: 05453983230a1f439562535fec2818f63f297af9
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fix some -Wpointer-sign warnings in the new mux proxy; ok
markus@
Upstream-ID: b1ba7b3769fbc6b7f526792a215b0197f5e55dfd
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ssh proxy mux mode (-O proxy; idea from Simon Tatham): - mux
client speaks the ssh-packet protocol directly over unix-domain socket. - mux
server acts as a proxy, translates channel IDs and relays to the server. - no
filedescriptor passing necessary. - combined with unix-domain forwarding it's
even possible to run mux client and server on different machines. feedback
& ok djm@
Upstream-ID: 666a2fb79f58e5c50e246265fb2b9251e505c25b
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Replace two more arc4random() loops with
arc4random_buf().
tweaks and ok dtucker
ok deraadt
Upstream-ID: 738d3229130ccc7eac975c190276ca6fcf0208e4
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Add MAXIMUM(), MINIMUM(), and ROUNDUP() to misc.h, then
use those definitions rather than pulling <sys/param.h> and unknown namespace
pollution. ok djm markus dtucker
Upstream-ID: 712cafa816c9f012a61628b66b9fbd5687223fb8
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