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jj git push is not working for me on Windows #3322

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jyn514 opened this issue Mar 18, 2024 · 5 comments · May be fixed by #3554
Open

jj git push is not working for me on Windows #3322

jyn514 opened this issue Mar 18, 2024 · 5 comments · May be fixed by #3554
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🐛bug Something isn't working 🪟Windows

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@jyn514
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jyn514 commented Mar 18, 2024

Description

whenever i run jj git push, i get one of the two errors:

  • on WSL: Error: invalid or unknown remote ssh hostkey; class=Ssh (23); code=Certificate (-17)
  • on Windows: Error: failed to set hostkey preference: The requested method(s) are not currently supported; class=Ssh (23)

Steps to Reproduce the Problem

i have no idea. i don't believe this is related to my .ssh/config, since ssh -F /dev/null [email protected] succeeds. i have the following env variables set on WSL:

; set | grep '^SSH'
SSH_AGENT_PID=48
SSH_AUTH_SOCK=/tmp/ssh-XXXXXXzGR8a4/agent.47

those aren't set on windows, but ssh-agent is somehow working anyway; at least, ssh-add succeeds.

Expected Behavior

jj is able to push to the remote.

Specifications

  • Platform: Linux windows-desktop 5.10.102.1-microsoft-standard-WSL2 Fix readme typo #1 SMP Wed Mar 2 00:30:59 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
    • Windows 11 Pro 22621.3296
  • Version: jj 0.15.1-bf76080f42f77cad934d9a5202c7b7d29ab2c890 (although this also happened with 0.14)
@PhilipMetzger PhilipMetzger added the 🐛bug Something isn't working label Mar 18, 2024
@gulbanana
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the second one might be libgit2/libgit2#6612
iirc i’ve worked around this in the past by ensuring my known_hosts does not contain an ed25519 key for github

@MordechaiHadad
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I am getting the same issue on windows (not WSL):

PS D:\repos\LeadLens> jj git push -c "@-"
Creating branch push-nroqnvwmpzqn for revision @-
Branch changes to push to origin:
  Add branch push-nroqnvwmpzqn to e06c042721af
Error: Failed to authenticate SSH session: ; class=Ssh (23)
Hint: Jujutsu uses libssh2, which doesn't respect ~/.ssh/config. Does `ssh -F /dev/null` to the host work?

@HybridEidolon
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HybridEidolon commented Apr 20, 2024

Similar issue here; I am cloning a repository from a private GitLab service using Windows and the remote ssh key is ed25519, and getting "Error: Fetch failed: failed to set hostkey preference: The requested method(s) are not currently supported; class=Ssh (23)". If I comment out the known_hosts line, I instead get "Fetch failed: failed to start SSH session: Unable to exchange encryption keys; class=Ssh (23)"

@HybridEidolon
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libssh2 error code 23 is LIBSSH2_ERROR_CHANNEL_UNKNOWN which is either "Packet received for unknown channel" or "Channel not found". That's really strange. This seems to affect jj all the way back to 0.7 (which was what cargo installed for some reason). Is libgit2 doing something it shouldn't?

@HybridEidolon
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I've tracked down the issue. The Windows Cryptography Next Generation API backend for libssh2 do not have support for ED25519 and libssh2-sys is defaulting to use it instead of OpenSSL when targeting win32 (either msvc or mingw). libssh2-sys must be compiled with the openssl-on-win32 feature (and vendored-openssl) in order to use the OpenSSL backend.

All distributions of git on windows use a combination of cygwin and git itself which are all compiled to use openssl, which is why it's not a common issue for windows git users. But when using libgit2 directly, this is something to be conscientious of I guess.

HybridEidolon added a commit to HybridEidolon/jj that referenced this issue Apr 21, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change necessitates Windows users building jj to install openssl via vcpkg
for the target triple x64-windows-static-md when building for MSVC, or otherwise
have OpenSSL available at build time. This should also generally work when
building for MinGW, though I did not try it.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue Apr 21, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change necessitates Windows users building jj to install openssl via vcpkg
for the target triple x64-windows-static-md when building for MSVC, or otherwise
have OpenSSL available at build time. This should also generally work when
building for MinGW, though I did not try it.

Fixes martinvonz#3322
@HybridEidolon HybridEidolon linked a pull request Apr 21, 2024 that will close this issue
4 tasks
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue Apr 21, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change necessitates Windows users building jj to install openssl via vcpkg
for the target triple x64-windows-static-md when building for MSVC, or otherwise
have OpenSSL available at build time. This should also generally work when
building for MinGW, though I did not try it.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue Apr 21, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change necessitates Windows users building jj to install openssl via vcpkg
for the target triple x64-windows-static-md when building for MSVC, or otherwise
have OpenSSL available at build time. This should also generally work when
building for MinGW, though I did not try it.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue Apr 23, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change adds the feature `openssl-on-win32`, enabling the same one in
`libssh2-sys`, and enables it in the CI release flow, ensuring that release
builds are able to communicate with hosts using ED25519.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue Apr 23, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change adds the feature `openssl-on-win32`, enabling the same one in
`libssh2-sys`, and enables it in the CI release flow, ensuring that release
builds are able to communicate with hosts using ED25519.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue Apr 24, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change adds the feature `openssl-on-win32`, enabling the same one in
`libssh2-sys`, and enables it in the CI release flow, ensuring that release
builds are able to communicate with hosts using ED25519.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue Apr 27, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change adds the feature `openssl-on-win32`, enabling the same one in
`libssh2-sys`, and enables it in the CI release flow, ensuring that release
builds are able to communicate with hosts using ED25519.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue May 2, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change adds the feature `openssl-on-win32`, enabling the same one in
`libssh2-sys`, and enables it in the CI release flow, ensuring that release
builds are able to communicate with hosts using ED25519.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue May 3, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change adds the feature `openssl-on-win32`, enabling the same one in
`libssh2-sys`, and enables it in the CI release flow, ensuring that release
builds are able to communicate with hosts using ED25519.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue May 8, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change adds the feature `openssl-on-win32`, enabling the same one in
`libssh2-sys`, and enables it in the CI release flow, ensuring that release
builds are able to communicate with hosts using ED25519.

Fixes martinvonz#3322
HybridEidolon added a commit to HybridEidolon/jj that referenced this issue May 12, 2024
By default, libssh2 uses Windows Cryptography Next Generation when targeting
win32. The wincng backend does not support ED25519, which is a widely-used
algorithm among git hosting services, and in some cases may be the only option
on remotes in certain configurations.

This change adds the feature `openssl-on-win32`, enabling the same one in
`libssh2-sys`, and enables it in the CI release flow, ensuring that release
builds are able to communicate with hosts using ED25519.

Fixes martinvonz#3322
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6 participants