Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libssh (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1847514
Title:
libssh-0.8 is detected as 0.7
Status in libssh package in Ubuntu:
Confirmed
Bug description:
QEMU consumes the library and its configure script use the libssh pkg-config
cflags.
The it checks if ssh_get_server_publickey() is present and assume it is a
libssh-0.8 based.
Ubuntu libssh is not based on upstream 0.8 but on the 0.7 branch, with commit
bbd052202 cherry-picked. This commit adds the ssh_get_server_publickey()
function that QEMU uses to check 0.8 compatibility.
Now commit 963c46e4f is present in libssh-0.8 but has not been cherry-picked
by Ubuntu, so QEMU fails at compiling because the ssh_known_hosts_e enums this
commit introduced are missing.
QEMU tracker is https://bugs.launchpad.net/qemu/+bug/1838763
How to reproduce:
- install libssh-dev
- try to build QEMU 4.1 (sources from
https://www.qemu.org/download/#source)
$ ./configure
...
libssh support yes
...
$ make
...
CC block/ssh.o
block/ssh.c: In function 'check_host_key_knownhosts':
block/ssh.c:281:28: error: storage size of 'state' isn't known
enum ssh_known_hosts_e state;
^~~~~
block/ssh.c:289:13: error: implicit declaration of function
'ssh_session_is_known_server' [-Werror=implicit-function-declaration]
state = ssh_session_is_known_server(s->session);
^~~~~~~~~~~~~~~~~~~~~~~~~~~
block/ssh.c:289:13: error: nested extern declaration of
'ssh_session_is_known_server' [-Werror=nested-externs]
block/ssh.c:293:10: error: 'SSH_KNOWN_HOSTS_OK' undeclared (first use in this
function); did you mean 'SSH_OPTIONS_HOSTKEYS'?
case SSH_KNOWN_HOSTS_OK:
^~~~~~~~~~~~~~~~~~
SSH_OPTIONS_HOSTKEYS
block/ssh.c:293:10: note: each undeclared identifier is reported only once
for each function it appears in
block/ssh.c:297:10: error: 'SSH_KNOWN_HOSTS_CHANGED' undeclared (first use in
this function); did you mean 'SSH_KNOWN_HOSTS_OK'?
case SSH_KNOWN_HOSTS_CHANGED:
^~~~~~~~~~~~~~~~~~~~~~~
SSH_KNOWN_HOSTS_OK
block/ssh.c:301:48: error: 'SSH_PUBLICKEY_HASH_SHA256' undeclared (first use
in this function); did you mean 'SSH_PUBLICKEY_HASH_SHA1'?
r = ssh_get_publickey_hash(pubkey, SSH_PUBLICKEY_HASH_SHA256,
^~~~~~~~~~~~~~~~~~~~~~~~~
SSH_PUBLICKEY_HASH_SHA1
block/ssh.c:307:27: error: implicit declaration of function
'ssh_get_fingerprint_hash'; did you mean 'ssh_get_pubkey_hash'?
[-Werror=implicit-function-declaration]
fingerprint = ssh_get_fingerprint_hash(SSH_PUBLICKEY_HASH_SHA256,
^~~~~~~~~~~~~~~~~~~~~~~~
ssh_get_pubkey_hash
block/ssh.c:307:27: error: nested extern declaration of
'ssh_get_fingerprint_hash' [-Werror=nested-externs]
block/ssh.c:324:10: error: 'SSH_KNOWN_HOSTS_OTHER' undeclared (first use in
this function); did you mean 'SSH_KNOWN_HOSTS_OK'?
case SSH_KNOWN_HOSTS_OTHER:
^~~~~~~~~~~~~~~~~~~~~
SSH_KNOWN_HOSTS_OK
block/ssh.c:329:10: error: 'SSH_KNOWN_HOSTS_UNKNOWN' undeclared (first use in
this function); did you mean 'SSH_KNOWN_HOSTS_CHANGED'?
case SSH_KNOWN_HOSTS_UNKNOWN:
^~~~~~~~~~~~~~~~~~~~~~~
SSH_KNOWN_HOSTS_CHANGED
block/ssh.c:333:10: error: 'SSH_KNOWN_HOSTS_NOT_FOUND' undeclared (first use
in this function); did you mean 'SSH_KNOWN_HOSTS_UNKNOWN'?
case SSH_KNOWN_HOSTS_NOT_FOUND:
^~~~~~~~~~~~~~~~~~~~~~~~~
SSH_KNOWN_HOSTS_UNKNOWN
block/ssh.c:337:10: error: 'SSH_KNOWN_HOSTS_ERROR' undeclared (first use in
this function); did you mean 'SSH_KNOWN_HOSTS_OTHER'?
case SSH_KNOWN_HOSTS_ERROR:
^~~~~~~~~~~~~~~~~~~~~
SSH_KNOWN_HOSTS_OTHER
block/ssh.c:281:28: error: unused variable 'state' [-Werror=unused-variable]
enum ssh_known_hosts_e state;
^~~~~
cc1: all warnings being treated as errors
rules.mak:69: recipe for target 'block/ssh.o' failed
make: *** [block/ssh.o] Error 1
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libssh-dev 0.8.0~20170825.94fa1e38-1ubuntu0.2
Uname: Linux 5.2.17-200.fc30.x86_64 x86_64
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
Date: Wed Oct 9 18:21:25 2019
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
SourcePackage: libssh
UpgradeStatus: No upgrade log present (probably fresh install)
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