This patch adds URI options to support libssh2 transport in the remote
driver.
A new transport sceme is introduced eg. "qemu+libssh://..." that
utilizes the libssh2 code added in previous patches.
The libssh2 code requires the authentication callback to be able to
perform keyboard-interactive authentication or to ask t passprhases or
add host keys to known hosts database.
Added URI components:
- known_hosts - path to a knownHosts file in OpenSSH format to check
for known ssh host keys
- known_hosts_verify - how to deal with server key verification:
* "normal" (default) - ask to add new keys
* "auto" - automaticaly add new keys
* "ignore" - don't validate host keys
- auth - authentication methods to use. Default is
"agent,privkey,keyboard-interactive". It's a comma separated
string of methods to try while authenticating. The order is
preserved. Some of the methods may require additional
parameters.
- password - Password for password authentication.
Locations of the known_hosts file and private keys are set to default
values if they're present. (~/.ssh/known_hosts, ~/.ssh/id_rsa,
~/.ssh/id_dsa)
---
src/remote/remote_driver.c | 47 ++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 45 insertions(+), 2 deletions(-)
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index 8153d70..9b5677d 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -385,6 +385,8 @@ static void remoteClientCloseFunc(virNetClientPtr client ATTRIBUTE_UNUSED,
* - xxx+tcp:/// -> TCP connection to localhost
* - xxx+unix:/// -> UNIX domain socket
* - xxx:/// -> UNIX domain socket
+ * - xxx+ssh:/// -> SSH connection (legacy)
+ * - xxx+libssh2:/// -> SSH connection (using libssh2)
*/
static int
doRemoteOpen(virConnectPtr conn,
@@ -397,6 +399,7 @@ doRemoteOpen(virConnectPtr conn,
trans_tls,
trans_unix,
trans_ssh,
+ trans_libssh2,
trans_ext,
trans_tcp,
} transport;
@@ -439,6 +442,8 @@ doRemoteOpen(virConnectPtr conn,
}
} else if (STRCASEEQ(transport_str, "ssh"))
transport = trans_ssh;
+ else if (STRCASEEQ(transport_str, "libssh2"))
+ transport = trans_libssh2;
else if (STRCASEEQ(transport_str, "ext"))
transport = trans_ext;
else if (STRCASEEQ(transport_str, "tcp"))
@@ -446,7 +451,7 @@ doRemoteOpen(virConnectPtr conn,
else {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("remote_open: transport in URL not recognised "
- "(should be tls|unix|ssh|ext|tcp)"));
+ "(should be tls|unix|ssh|ext|tcp|libssh2)"));
return VIR_DRV_OPEN_ERROR;
}
}
@@ -460,10 +465,12 @@ doRemoteOpen(virConnectPtr conn,
* get freed in the failed: path.
*/
char *name = NULL, *command = NULL, *sockname = NULL, *netcat = NULL;
- char *port = NULL, *authtype = NULL, *username = NULL;
+ char *port = NULL, *authtype = NULL, *username = NULL, *password = NULL;
bool sanity = true, verify = true, tty ATTRIBUTE_UNUSED = true;
char *pkipath = NULL, *keyfile = NULL;
+ char *knownHostsVerify = NULL, *knownHosts = NULL;
+
/* Return code from this function, and the private data. */
int retcode = VIR_DRV_OPEN_ERROR;
@@ -508,6 +515,9 @@ doRemoteOpen(virConnectPtr conn,
EXTRACT_URI_ARG_STR("netcat", netcat);
EXTRACT_URI_ARG_STR("keyfile", keyfile);
EXTRACT_URI_ARG_STR("pkipath", pkipath);
+ EXTRACT_URI_ARG_STR("known_hosts", knownHosts);
+ EXTRACT_URI_ARG_STR("known_hosts_verify", knownHostsVerify);
+ EXTRACT_URI_ARG_STR("password", password);
EXTRACT_URI_ARG_BOOL("no_sanity", sanity);
EXTRACT_URI_ARG_BOOL("no_verify", verify);
@@ -597,6 +607,36 @@ doRemoteOpen(virConnectPtr conn,
break;
+ case trans_libssh2:
+ if (!sockname) {
+ if (flags & VIR_DRV_OPEN_REMOTE_RO)
+ sockname = strdup(LIBVIRTD_PRIV_UNIX_SOCKET_RO);
+ else
+ sockname = strdup(LIBVIRTD_PRIV_UNIX_SOCKET);
+
+ if (sockname == NULL)
+ goto no_memory;
+ }
+
+ VIR_DEBUG("Starting LibSSH2 session");
+
+ priv->client = virNetClientNewLibSSH2(priv->hostname,
+ port,
+ username,
+ password,
+ keyfile,
+ knownHosts,
+ knownHostsVerify,
+ authtype,
+ netcat,
+ sockname,
+ auth);
+ if (!priv->client)
+ goto failed;
+
+ priv->is_secure = 1;
+ break;
+
#ifndef WIN32
case trans_unix:
if (!sockname) {
@@ -777,6 +817,9 @@ doRemoteOpen(virConnectPtr conn,
VIR_FREE(username);
VIR_FREE(port);
VIR_FREE(pkipath);
+ VIR_FREE(password);
+ VIR_FREE(knownHostsVerify);
+ VIR_FREE(knownHosts);
return retcode;
--
1.7.8.6
--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list