sftp. The default remains to not forward an agent, even when ssh_config
enables it. ok jmc dtucker markus
OpenBSD-Commit-ID: 36cc526aa3b0f94e4704b8d7b969dd63e8576822
most a single error response after the file has been opened. Otherwise the
source() and sink() can become desyncronised. Reported by Daniel Goujot,
Georges-Axel Jaloyan, Ryan Lahfa, and David Naccache.
ok deraadt@ markus@
OpenBSD-Commit-ID: 6c14d233c97349cb811a8f7921ded3ae7d9e0035
sigaction(2). This wrapper blocks all other signals during the handler
preventing races between handlers, and sets SA_RESTART which should reduce
the potential for short read/write operations.
OpenBSD-Commit-ID: 5e047663fd77a40d7b07bdabe68529df51fd2519
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
match what the client requested, be prepared to handle shell-style brace
alternations, e.g. "{foo,bar}".
"looks good to me" millert@ + in snaps for the last week courtesy
deraadt@
OpenBSD-Commit-ID: 3b1ce7639b0b25b2248e3a30f561a548f6815f3e
remote->local directory copies satisfy the wildcard specified by the user.
This checking provides some protection against a malicious server
sending unexpected filenames, but it comes at a risk of rejecting wanted
files due to differences between client and server wildcard expansion rules.
For this reason, this also adds a new -T flag to disable the check.
reported by Harry Sintonen
fix approach suggested by markus@;
has been in snaps for ~1wk courtesy deraadt@
OpenBSD-Commit-ID: 00f44b50d2be8e321973f3c6d014260f8f7a8eda
end of each transfer. Fixes the problem recently introduces where very quick
transfers do not display the progressmeter at all. Spotted by naddy@
OpenBSD-Commit-ID: 68dc46c259e8fdd4f5db3ec2a130f8e4590a7a9a
the progressmeter formatting outside of signal handler context and have the
atomicio callback called for EINTR too. bz#2434 with contributions from djm
and jjelen at redhat.com, ok djm@
OpenBSD-Commit-ID: 1af61c1f70e4f3bd8ab140b9f1fa699481db57d8
Don't call OpenSSL_add_all_algorithms() unless OpenSSL actually
supports it.
Move all libcrypto initialisation to a single function, and call that
from seed_rng() that is called early in each tool's main().
Prompted by patch from Rosen Penev
just files. This makes sure it gets applied to directories too, and prevents
a race where files get chmodded after creation. bz#2839, ok djm@
OpenBSD-Commit-ID: 3168ee6c7c39093adac4fd71039600cfa296203b
Disable RemoteCommand and RequestTTY in the ssh session
started by scp. sftp is already doing this. From Camden Narzt via github; ok
dtucker
OpenBSD-Commit-ID: 59e2611141c0b2ee579c6866e8eb9d7d8217bc6b
Add helper function for uri handing in scp where a
missing path simply means ".". Also fix exit code and add warnings when an
invalid uri is encountered. OK otto@
OpenBSD-Commit-ID: 47dcf872380586dabf7fcc6e7baf5f8ad508ae1a
Add URI support to ssh, sftp and scp. For example
ssh://user@host or sftp://user@host/path. The connection parameters
described in draft-ietf-secsh-scp-sftp-ssh-uri-04 are not implemented since
the ssh fingerprint format in the draft uses md5 with no way to specify the
hash function type. OK djm@
Upstream-ID: 4ba3768b662d6722de59e6ecb00abf2d4bf9cacc
Switch to recallocarray() for a few operations. Both
growth and shrinkage are handled safely, and there also is no need for
preallocation dances. Future changes in this area will be less error prone.
Review and one bug found by markus
Upstream-ID: 822d664d6a5a1d10eccb23acdd53578a679d5065
Avoid relying on implementation-specific behavior when
detecting whether the timestamp or file size overflowed. If time_t and off_t
are not either 32-bit or 64-bit scp will exit with an error. OK djm@
Upstream-ID: f31caae73ddab6df496b7bbbf7da431e267ad135
Avoid potential signed int overflow when parsing the file
size. Use strtoul() instead of parsing manually. OK djm@
Upstream-ID: 1f82640861c7d905bbb05e7d935d46b0419ced02
Turkish locales are unique in their handling of the letters 'i' and
'I' (yes, they are different letters) and OpenSSH isn't remotely
prepared to deal with that. For now, the best we can do is to force
OpenSSH to use the C/POSIX locale and try to preserve the UTF-8
encoding if possible.
ok dtucker@
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
To prevent screwing up terminal settings when printing to
the terminal, for ASCII and UTF-8, escape bytes not forming characters and
bytes forming non-printable characters with vis(3) VIS_OCTAL. For other
character sets, abort printing of the current string in these cases. In
particular, * let scp(1) respect the local user's LC_CTYPE locale(1); *
sanitize data received from the remote host; * sanitize filenames, usernames,
and similar data even locally; * take character display widths into account
for the progressmeter.
This is believed to be sufficient to keep the local terminal safe
on OpenBSD, but bad things can still happen on other systems with
state-dependent locales because many places in the code print
unencoded ASCII characters into the output stream.
Using feedback from djm@ and martijn@,
various aspects discussed with many others.
deraadt@ says it should go in now, i probably already hesitated too long
Upstream-ID: e66afbc94ee396ddcaffd433b9a3b80f387647e0
Improve accuracy of reported transfer speeds by waiting
for the ack from the other end. Pointed out by mmcc@, ok deraadt@ markus@
Upstream-ID: 99f1cf15c9a8f161086b814d414d862795ae153d
Replace <sys/param.h> with <limits.h> and other less
dirty headers where possible. Annotate <sys/param.h> lines with their
current reasons. Switch to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1,
LOGIN_NAME_MAX, etc. Change MIN() and MAX() to local definitions of
MINIMUM() and MAXIMUM() where sensible to avoid pulling in the pollution.
These are the files confirmed through binary verification. ok guenther,
millert, doug (helped with the verification protocol)
[scp.c]
Handle time_t values as long long's when formatting them and when
parsing them from remote servers.
Improve error checking in parsing of 'T' lines.
ok dtucker@ deraadt@
[scp.c sftp-client.c]
Replace S_IWRITE, which isn't standardized, with S_IWUSR, which is. Patch
from Nathan Osman via bz#2113. ok deraadt.
(note: corrected bug number from 2085)
[scp.c]
suppress adding '--' to remote commandlines when the first argument
does not start with '-'. saves breakage on some difficult-to-upgrade
embedded/router platforms; feedback & ok dtucker ok markus
[scp.1 scp.c]
add a new -3 option to scp: Copies between two remote hosts are
transferred through the local host. Without this option the data
is copied directly between the two remote hosts. ok djm@ (bugzilla #1837)
[scp.c]
Pass through ssh command-line flags and options when doing remote-remote
transfers, e.g. to enable agent forwarding which is particularly useful
in this case; bz#1837 ok dtucker@
[atomicio.c atomicio.h misc.c misc.h scp.c sftp-client.c]
[sftp-client.h sftp.1 sftp.c]
add an option per-read/write callback to atomicio
factor out bandwidth limiting code from scp(1) into a generic bandwidth
limiter that can be attached using the atomicio callback mechanism
add a bandwidth limit option to sftp(1) using the above
"very nice" markus@
[ssh.c sftp.c scp.c]
When passing user-controlled options with arguments to other programs,
pass the option and option argument as separate argv entries and
not smashed into one (e.g., as -l foo and not -lfoo). Also, always
pass a "--" argument to stop option parsing, so that a positional
argument that starts with a '-' isn't treated as an option. This
fixes some error cases as well as the handling of hostnames and
filenames that start with a '-'.
Based on a diff by halex@
ok halex@ djm@ deraadt@
[packet.c scp.c serverloop.c sftp-client.c ssh-agent.c ssh-keyscan.c]
[sshd.c] Explicitly handle EWOULDBLOCK wherever we handle EAGAIN, on
some platforms (HP nonstop) it is a distinct errno;
bz#1467 reported by sconeu AT yahoo.com; ok dtucker@
[scp.c]
If scp -p encounters a pre-epoch timestamp, use the epoch which is
as close as we can get given that it's used unsigned. Add a little
debugging while there. bz #828, ok djm@
[scp.c]
factor out network read/write into an atomicio()-like function, and
use it to handle short reads, apply bandwidth limits and update
counters. make network IO non-blocking, so a small trickle of
reads/writes has a chance of updating the progress meter; bz #799
ok dtucker@
[scp.c]
make scp try to skip FIFOs rather than blocking when nothing is listening.
depends on the platform supporting sane O_NONBLOCK semantics for open
on FIFOs (apparently POSIX does not mandate this), which OpenBSD does.
bz #856; report by cjwatson AT debian.org; ok markus@
[scp.c]
fix detection of whether we should show progress meter or not: scp
tested isatty(stderr) but wrote the progress meter to stdout. This patch
makes it test stdout. bz#1265 reported by junkmail AT bitsculpture.com;
of dtucker@
[buffer.c channels.c deattack.c misc.c scp.c session.c sftp-client.c]
[sftp-server.c ssh-agent.c ssh-rsa.c xmalloc.c xmalloc.h auth-pam.c]
[uidswap.c]
change OpenSSH's xrealloc() function from being xrealloc(p, new_size)
to xrealloc(p, new_nmemb, new_itemsize).
realloc is particularly prone to integer overflows because it is
almost always allocating "n * size" bytes, so this is a far safer
API; ok deraadt@
[misc.c misc.h scp.c sftp.c]
fix local arbitrary command execution vulnerability on local/local and
remote/remote copies (CVE-2006-0225, bz #1094), patch by
t8m AT centrum.cz, polished by dtucker@ and myself; ok markus@
[auth-options.c auth-options.h channels.c channels.h clientloop.c]
[misc.c misc.h readconf.c readconf.h scp.c servconf.c servconf.h]
[serverloop.c sftp.c ssh.1 ssh.c ssh_config ssh_config.5 sshconnect.c]
[sshconnect.h sshd.8 sshd_config sshd_config.5]
Add support for tun(4) forwarding over OpenSSH, based on an idea and
initial channel code bits by markus@. This is a simple and easy way to
use OpenSSH for ad hoc virtual private network connections, e.g.
administrative tunnels or secure wireless access. It's based on a new
ssh channel and works similar to the existing TCP forwarding support,
except that it depends on the tun(4) network interface on both ends of
the connection for layer 2 or layer 3 tunneling. This diff also adds
support for LocalCommand in the ssh(1) client.
ok djm@, markus@, jmc@ (manpages), tested and discussed with others
djm@openbsd.org
millert@openbsd.org
markus@openbsd.org
dtucker@openbsd.org
Darren Tucker
Damien Miller
deraadt@openbsd.org
jmc@openbsd.org
tb@openbsd.org
Darren Tucker
schwarze@openbsd.org
mmcc@openbsd.org
Tim Rice