[libvirt] [PATCH 14/14] virsh-completer: introduce virshPasswordCompleter
Suggest some passwords to the user.
Signed-off-by: Ján Tomko <jtomko(a)redhat.com>
---
tools/virsh-completer.c | 58 +++++++++++++++++++++++++++++++++++++++++
tools/virsh-completer.h | 4 +++
tools/virsh-domain.c | 1 +
3 files changed, 63 insertions(+)
diff --git a/tools/virsh-completer.c b/tools/virsh-completer.c
index 5985f09272..0687670d37 100644
--- a/tools/virsh-completer.c
+++ b/tools/virsh-completer.c
@@ -32,6 +32,7 @@
#include "virutil.h"
#include "viralloc.h"
#include "virmacaddr.h"
+#include "virrandom.h"
#include "virstring.h"
#include "virxml.h"
@@ -936,3 +937,60 @@ virshDomainDeviceAliasCompleter(vshControl *ctl,
VIR_STEAL_PTR(ret, tmp);
return ret;
}
+
+
+const char *builtin_passwords[] = {
+ "hunter2", /* ******* */
+ "nbusr123", /* Keď nevieš, tak nefušuj */
+ "4ezgi4",
+};
+
+
+char **
+virshPasswordCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
+ const vshCmd *cmd ATTRIBUTE_UNUSED,
+ unsigned int flags)
+{
+ VIR_AUTOFREE(char *) base64 = NULL;
+ VIR_AUTOFREE(unsigned char *) rand = NULL;
+ VIR_AUTOSTRINGLIST tmp = NULL;
+ const size_t optimal_passlen = 8; /* ought to be enough */
+ const char *prefix = NULL;
+ const size_t num = 1;
+ char **ret = NULL;
+ size_t missing;
+ size_t i;
+
+ virCheckFlags(0, NULL);
+
+ if (VIR_ALLOC_N(tmp, num + ARRAY_CARDINALITY(builtin_passwords) + 1) < 0)
+ return NULL;
+
+ ignore_value(vshCommandOptStringQuiet(ctl, cmd, "password", &prefix));
+ if (STREQ_NULLABLE(prefix, " "))
+ prefix = NULL;
+
+ missing = optimal_passlen - MIN(strlen(NULLSTR_EMPTY(prefix)), optimal_passlen);
+
+ if (VIR_ALLOC_N(rand, 7) < 0)
+ return NULL;
+
+ if (virRandomBytes(rand, 6) < 0)
+ return NULL;
+
+ if (!(base64 = virStringEncodeBase64(rand, 6)))
+ return NULL;
+
+ base64[missing] = '\0';
+
+ if (virAsprintf(&tmp[0], "%s%s", NULLSTR_EMPTY(prefix), base64) <
0)
+ return NULL;
+
+ for (i = 0; i < ARRAY_CARDINALITY(builtin_passwords); i++) {
+ if (VIR_STRDUP(tmp[i + 1], builtin_passwords[i]) < 0)
+ return NULL;
+ }
+
+ VIR_STEAL_PTR(ret, tmp);
+ return ret;
+}
diff --git a/tools/virsh-completer.h b/tools/virsh-completer.h
index 2e2e1edafb..d47a5f4da6 100644
--- a/tools/virsh-completer.h
+++ b/tools/virsh-completer.h
@@ -110,4 +110,8 @@ char ** virshDomainDeviceAliasCompleter(vshControl *ctl,
char ** virshCellnoCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags);
+
+char ** virshPasswordCompleter(vshControl *ctl,
+ const vshCmd *cmd,
+ unsigned int flags);
#endif /* LIBVIRT_VIRSH_COMPLETER_H */
diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index e8d5404acf..d8978f5bd1 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -5732,6 +5732,7 @@ static const vshCmdOptDef opts_set_user_password[] = {
{.name = "password",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
+ .completer = virshPasswordCompleter,
.help = N_("the new password")
},
{.name = "encrypted",
--
2.20.1