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path: root/monitor.c
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2019-07-05upstream: When system calls indicate an error they return -1, notderaadt@openbsd.org
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
2019-01-21upstream: rename kex->kem_client_pub -> kex->client_pub now thatdjm@openbsd.org
KEM has been renamed to kexgen from markus@ ok djm@ OpenBSD-Commit-ID: fac6da5dc63530ad0da537db022a9a4cfbe8bed8
2019-01-21upstream: use KEM API for vanilla ECDHdjm@openbsd.org
from markus@ ok djm@ OpenBSD-Commit-ID: 6fbff96339a929835536b5730585d1d6057a352c
2019-01-21upstream: use KEM API for vanilla DH KEXdjm@openbsd.org
from markus@ ok djm@ OpenBSD-Commit-ID: af56466426b08a8be275412ae2743319e3d277c9
2019-01-21upstream: use KEM API for vanilla c25519 KEXdjm@openbsd.org
OpenBSD-Commit-ID: 38d937b85ff770886379dd66a8f32ab0c1c35c1f
2019-01-21upstream: Add support for a PQC KEX/KEM:djm@openbsd.org
sntrup4591761x25519-sha512@tinyssh.org using the Streamlined NTRU Prime 4591^761 implementation from SUPERCOP coupled with X25519 as a stop-loss. Not enabled by default. introduce KEM API; a simplified framework for DH-ish KEX methods. from markus@ feedback & ok djm@ OpenBSD-Commit-ID: d687f76cffd3561dd73eb302d17a1c3bf321d1a7
2019-01-20last bits of old packet API / active_state globalDamien Miller
2019-01-20remove PAM dependencies on old packet APIDamien Miller
Requires some caching of values, because the PAM code isn't always called with packet context.
2019-01-20upstream: remove last references to active_statedjm@openbsd.org
with & ok markus@ OpenBSD-Commit-ID: 78619a50ea7e4ca2f3b54d4658b3227277490ba2
2019-01-20upstream: convert monitor.c to new packet APIdjm@openbsd.org
with & ok markus@ OpenBSD-Commit-ID: 61ecd154bd9804461a0cf5f495a29d919e0014d5
2019-01-20upstream: convert auth.c to new packet APIdjm@openbsd.org
with & ok markus@ OpenBSD-Commit-ID: 7e10359f614ff522b52a3f05eec576257794e8e4
2019-01-20upstream: begin landing remaining refactoring of packet parsingdjm@openbsd.org
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
2018-11-16upstream: fix bug in HostbasedAcceptedKeyTypes anddjm@openbsd.org
PubkeyAcceptedKeyTypes options. If only RSA-SHA2 siganture types were specified, then authentication would always fail for RSA keys as the monitor checks only the base key (not the signature algorithm) type against *AcceptedKeyTypes. bz#2746; reported by Jakub Jelen; ok dtucker OpenBSD-Commit-ID: 117bc3dc54578dbdb515a1d3732988cb5b00461b
2018-09-13adapt -portable to OpenSSL 1.1x APIDamien Miller
Polyfill missing API with replacement functions extracted from LibreSSL
2018-09-13upstream: hold our collective noses and use the openssl-1.1.x API indjm@openbsd.org
OpenSSH; feedback and ok tb@ jsing@ markus@ OpenBSD-Commit-ID: cacbcac87ce5da0d3ca7ef1b38a6f7fb349e4417
2018-07-31Remove support for S/KeyDamien Miller
Most people will 1) be using modern multi-factor authentication methods like TOTP/OATH etc and 2) be getting support for multi-factor authentication via PAM or BSD Auth.
2018-07-20upstream: remove unused zlib.hdjm@openbsd.org
OpenBSD-Commit-ID: 8d274a9b467c7958df12668b49144056819f79f1
2018-07-12upstream: remove legacy key emulation layer; ok djm@markus@openbsd.org
OpenBSD-Commit-ID: 2b1f9619259e222bbd4fe9a8d3a0973eafb9dd8d
2018-07-11Supply some more missing "int r" in skeyDarren Tucker
2018-07-11Supply missing "int r" in skey code.Darren Tucker
2018-07-10Adapt portable to legacy buffer API removalDamien Miller
2018-07-10upstream: kerberos/gssapi fixes for buffer removaldjm@openbsd.org
OpenBSD-Commit-ID: 1cdf56fec95801e4563c47f21696f04cd8b60c4c
2018-07-10upstream: sshd: switch monitor to sshbuf API; lots of help & okmarkus@openbsd.org
djm@ OpenBSD-Commit-ID: d89bd02d33974fd35ca0b8940d88572227b34a48
2018-07-10upstream: sshd: switch authentication to sshbuf API; ok djm@markus@openbsd.org
OpenBSD-Commit-ID: 880aa06bce4b140781e836bb56bec34873290641
2018-07-10upstream: sshd: switch loginmsg to sshbuf API; ok djm@markus@openbsd.org
OpenBSD-Commit-ID: f3cb4e54bff15c593602d95cc43e32ee1a4bac42
2018-03-03upstream: switch over to the new authorized_keys options API anddjm@openbsd.org
remove the legacy one. Includes a fairly big refactor of auth2-pubkey.c to retain less state between key file lines. feedback and ok markus@ OpenBSD-Commit-ID: dece6cae0f47751b9892080eb13d6625599573df
2018-02-07upstream committb@openbsd.org
Add a couple of non-negativity checks to avoid close(-1). ok djm OpenBSD-Commit-ID: 4701ce0b37161c891c838d0931305f1d37a50880
2018-01-23upstream commitdjm@openbsd.org
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
2017-12-21upstream commitdjm@openbsd.org
revert stricter key type / signature type checking in userauth path; too much software generates inconsistent messages, so we need a better plan. OpenBSD-Commit-ID: 4a44ddc991c803c4ecc8f1ad40e0ab4d22e1c519
2017-12-19upstream commitdjm@openbsd.org
pass negotiated signing algorithm though to sshkey_verify() and check that the negotiated algorithm matches the type in the signature (only matters for RSA SHA1/SHA2 sigs). ok markus@ OpenBSD-Commit-ID: 735fb15bf4adc060d3bee9d047a4bcaaa81b1af9
2017-10-20upstream commitdjm@openbsd.org
replace statically-sized arrays in ServerOptions with dynamic ones managed by xrecallocarray, removing some arbitrary (though large) limits and saving a bit of memory; "much nicer" markus@ Upstream-ID: 1732720b2f478fe929d6687ac7b0a97ff2efe9d2
2017-10-03upstream commitdjm@openbsd.org
Fix PermitOpen crash; spotted by benno@, ok dtucker@ deraadt@ Upstream-ID: c2cc84ffac070d2e1ff76182c70ca230a387983c
2017-09-12upstream commitdjm@openbsd.org
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
2017-06-24upstream commitdjm@openbsd.org
refactor authentication logging optionally record successful auth methods and public credentials used in a file accessible to user sessions feedback and ok markus@ Upstream-ID: 090b93036967015717b9a54fd0467875ae9d32fb
2017-06-01upstream commitmarkus@openbsd.org
use SO_ZEROIZE for privsep communication (if available) Upstream-ID: abcbb6d2f8039fc4367a6a78096e5d5c39de4a62
2017-06-01upstream commitmarkus@openbsd.org
clear session keys from memory; ok djm@ Upstream-ID: ecd178819868975affd5fd6637458b7c712b6a0f
2017-05-31upstream commitmarkus@openbsd.org
switch auth2-pubkey.c to modern APIs; with & ok djm@ Upstream-ID: 8f08d4316eb1b0c4ffe4a206c05cdd45ed1daf07
2017-05-31upstream commitmarkus@openbsd.org
switch from Key typedef with struct sshkey; ok djm@ Upstream-ID: 3067d33e04efbe5131ce8f70668c47a58e5b7a1f
2017-02-04upstream commitdjm@openbsd.org
use ssh_packet_set_log_preamble() to include connection username in packet log messages, e.g. Connection closed by invalid user foo 10.1.1.1 port 44056 [preauth] ok markus@ bz#113 Upstream-ID: 3591b88bdb5416d6066fb3d49d8fff2375bf1a15
2016-09-29upstream commitdjm@openbsd.org
Remove support for pre-authentication compression. Doing compression early in the protocol probably seemed reasonable in the 1990s, but today it's clearly a bad idea in terms of both cryptography (cf. multiple compression oracle attacks in TLS) and attack surface. Moreover, to support it across privilege-separation zlib needed the assistance of a complex shared-memory manager that made the required attack surface considerably larger. Prompted by Guido Vranken pointing out a compiler-elided security check in the shared memory manager found by Stack (http://css.csail.mit.edu/stack/); ok deraadt@ markus@ NB. pre-auth authentication has been disabled by default in sshd for >10 years. Upstream-ID: 32af9771788d45a0779693b41d06ec199d849caf
2016-09-12upstream commitdjm@openbsd.org
enforce expected request flow for GSSAPI calls; thanks to Jakub Jelen for testing; ok markus@ Upstream-ID: d4bc0e70e1be403735d3d9d7e176309b1fd626b9
2016-08-31tighten PAM monitor callsDamien Miller
only allow kbd-interactive ones when that authentication method is enabled. Prompted by Solar Designer
2016-08-31upstream commitdjm@openbsd.org
restrict monitor auth calls to be allowed only when their respective authentication methods are enabled in the configuration. prompted by Solar Designer; ok markus dtucker Upstream-ID: 6eb3f89332b3546d41d6dbf5a8e6ff920142b553
2016-08-29Tighten monitor state-machine flow for PAM callsDamien Miller
(attack surface reduction)
2016-08-23upstream commitdjm@openbsd.org
remove UseLogin option and support for having /bin/login manage login sessions; ok deraadt markus dtucker Upstream-ID: bea7213fbf158efab7e602d9d844fba4837d2712
2016-08-14upstream commitmarkus@openbsd.org
remove ssh1 server code; ok djm@ Upstream-ID: c24c0c32c49b91740d5a94ae914fb1898ea5f534
2016-07-22upstream commitdjm@openbsd.org
move debug("%p", key) to before key is free'd; probable undefined behaviour on strict compilers; reported by Jakub Jelen bz#2581 Upstream-ID: 767f323e1f5819508a0e35e388ec241bac2f953a
2016-07-18Handle PAM_MAXTRIES from modules.Darren Tucker
bz#2249: handle the case where PAM returns PAM_MAXTRIES by ceasing to offer password and keyboard-interative authentication methods. Should prevent "sshd ignoring max retries" warnings in the log. ok djm@ It probably won't trigger with keyboard-interactive in the default configuration because the retry counter is stored in module-private storage which goes away with the sshd PAM process (see bz#688). On the other hand, those cases probably won't log a warning either.
2016-05-02upstream commitdjm@openbsd.org
add support for additional fixed DH groups from draft-ietf-curdle-ssh-kex-sha2-03 diffie-hellman-group14-sha256 (2K group) diffie-hellman-group16-sha512 (4K group) diffie-hellman-group18-sha512 (8K group) based on patch from Mark D. Baushke and Darren Tucker ok markus@ Upstream-ID: ac00406ada4f0dfec41585ca0839f039545bc46f
2016-05-02upstream commitdjm@openbsd.org
fix signed/unsigned errors reported by clang-3.7; add sshbuf_dup_string() to replace a common idiom of strdup(sshbuf_ptr()) with better safety checking; feedback and ok markus@ Upstream-ID: 71f926d9bb3f1efed51319a6daf37e93d57c8820
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