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authorLennart Poettering <lennart@poettering.net>2016-05-24 12:14:21 +0200
committerLennart Poettering <lennart@poettering.net>2016-05-24 12:14:21 +0200
commitbbed3b8efdff7ea15813ed71d71a20c9c51ec7e9 (patch)
tree155b729ce20da75a40480cb4d5354a409df48cbc /src/basic/terminal-util.c
parent755700bbd4a67661f40e963faccf8cf1fef84f9a (diff)
parent6af621248f2255f9ce50b0bafdde475305dc4e57 (diff)
Merge pull request #3247 from fbuihuu/ask-passowrd-on-all-consoles
ask-password: ask for passphrases not only on the first console
Diffstat (limited to 'src/basic/terminal-util.c')
-rw-r--r--src/basic/terminal-util.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c
index 9521b79daa..3189b8789d 100644
--- a/src/basic/terminal-util.c
+++ b/src/basic/terminal-util.c
@@ -50,6 +50,7 @@
#include "socket-util.h"
#include "stat-util.h"
#include "string-util.h"
+#include "strv.h"
#include "terminal-util.h"
#include "time-util.h"
#include "util.h"
@@ -708,6 +709,64 @@ char *resolve_dev_console(char **active) {
return tty;
}
+int get_kernel_consoles(char ***consoles) {
+ _cleanup_strv_free_ char **con = NULL;
+ _cleanup_free_ char *line = NULL;
+ const char *active;
+ int r;
+
+ assert(consoles);
+
+ r = read_one_line_file("/sys/class/tty/console/active", &line);
+ if (r < 0)
+ return r;
+
+ active = line;
+ for (;;) {
+ _cleanup_free_ char *tty = NULL;
+ char *path;
+
+ r = extract_first_word(&active, &tty, NULL, 0);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ if (streq(tty, "tty0")) {
+ tty = mfree(tty);
+ r = read_one_line_file("/sys/class/tty/tty0/active", &tty);
+ if (r < 0)
+ return r;
+ }
+
+ path = strappend("/dev/", tty);
+ if (!path)
+ return -ENOMEM;
+
+ if (access(path, F_OK) < 0) {
+ log_debug_errno(errno, "Console device %s is not accessible, skipping: %m", path);
+ free(path);
+ continue;
+ }
+
+ r = strv_consume(&con, path);
+ if (r < 0)
+ return r;
+ }
+
+ if (strv_isempty(con)) {
+ log_debug("No devices found for system console");
+
+ r = strv_extend(&con, "/dev/console");
+ if (r < 0)
+ return r;
+ }
+
+ *consoles = con;
+ con = NULL;
+ return 0;
+}
+
bool tty_is_vc_resolve(const char *tty) {
_cleanup_free_ char *active = NULL;