On Wednesday 07 November 2007 09:50, Rajeev Bansal wrote:
> Hi All,
>
> I am using the busybox in my root file system, everything is fine with
Which version of busybox do you use?
> that, except when I try to login as a root from serial console it
> doesn't prompt me for the password and immediately say "Login
> Incorrect".
Do non-root logins work? Does it work if you configure
busybox without CONFIG_FEATURE_SECURETTY=y?
> I need to login as a root from serial console, so can
> anyone tell me how I can make it happen. I have a /etc/securetty file
> present and I have added the entry for ttyS0 in that.
Sounds like you did everything right.
> I think login
> utility of busybox doesn't read the securetty file.
It reads /etc/securetty here:
#if ENABLE_FEATURE_SECURETTY && !ENABLE_PAM
static int check_securetty(void)
{
FILE *fp;
int i;
char buf[256];
fp = fopen("/etc/securetty", "r");
if (!fp) {
/* A missing securetty file is not an error. */
return 1;
}
while (fgets(buf, sizeof(buf)-1, fp)) {
for (i = strlen(buf)-1; i >= 0; --i) {
if (!isspace(buf[i]))
break;
}
buf[++i] = '\0';
if (!buf[0] || (buf[0] == '#'))
continue;
if (strcmp(buf, short_tty) == 0) {
fclose(fp);
return 1;
}
}
fclose(fp);
return 0;
}
#else
and checks here:
pw = getpwnam(username);
if (!pw) {
strcpy(username, "UNKNOWN");
goto fake_it;
}
if (pw->pw_passwd[0] == '!' || pw->pw_passwd[0] == '*')
goto auth_failed;
if (opt & LOGIN_OPT_f)
break; /* -f USER: success without asking passwd */
if (pw->pw_uid == 0 && !check_securetty()) <==== HERE
goto auth_failed;
--
vda
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