--- qmail-smtpd.c 2003-04-05 17:55:20.000000000 -0500
+++ qmail-smtpd.c.new 2003-04-05 17:50:58.000000000 -0500
@@ -304,7 +304,11 @@
if (!stralloc_copys(&rcptto,"") die_nomem();
if (!stralloc_copys(&mailfrom,addr.s)) die_nomem();
if (!stralloc_0(&mailfrom)) die_nomem();
+ if (smtp_auth_validfrom(mailfrom.s)) {
out("250 ok\r\n"
+ } else {
+ out("must use username as From authenticated! (#5.7.1)\r\n"
+ }
}
void smtp_rcpt(arg) char *arg; {
if (!seenmail) { err_wantmail(); return; }
@@ -527,6 +531,82 @@
static stralloc smtpauth = {0};
static char smtpauthlogin[65];
static char smtpauthpass[65];
+static int authd = 0;
+
+/* Author: gadfly@163.com.
+ * 1. Check consistent between auth user and 'From' user.
+ * 2. Read the LOG_AUTH enviroment variable to determine whether logging the auth info.
+ * LOG_AUTH=1, write the auth smtp info into syslog.
+ */
+#include <syslog.h>;
+
+#define SMTP_AUTH_SUCCESS 0
+#define SMTP_AUTH_FAILED 1
+
+int smtp_auth_validfrom(from) char * from;
+{
+ stralloc tmplogin={0},mydefaultdomain={0};
+ char authusername[256];
+ int k, userlen;
+
+ if (!authd) return 1;
+
+ authusername[255] = '\0';
+ userlen = k = str_len(smtpauthlogin);
+ k = byte_rchr(smtpauthlogin, k, '@');
+
+ if (k == userlen)
+ {
+ k = byte_rchr(smtpauthlogin, userlen, '%');
+
+ if (k == userlen)
+ {
+ if (control_readfile(&mydefaultdomain,"/var/qmail/control/me",1) != 1)
+ {
+ die_nomem();
+ }
+ if (!stralloc_copys(&tmplogin, smtpauthlogin) )
+ {
+ die_nomem();
+ }
+ if (!stralloc_cats(&tmplogin, "@"
+ {
+ die_nomem();
+ }
+ if (!stralloc_cat(&tmplogin, &mydefaultdomain))
+ {
+ die_nomem();
+ }
+ strncpy(authusername, tmplogin.s, sizeof(authusername));
+ }
+ else
+ {
+ strcpy(authusername, smtpauthlogin);
+ authusername[k]='@';
+ }
+ }
+ else {
+ strcpy(authusername, smtpauthlogin);
+ }
+ return !strcasecmp(from, authusername);
+}
+
+
+void auth_smtplog(authlogin, authresult)
+char * authlogin;
+int authresult;
+{
+ char * x = env_get("LOG_AUTH"
+
+ if (!x || (*x != '1')) return;
+
+ if (authresult == SMTP_AUTH_SUCCESS) {
+ syslog(LOG_MAIL | LOG_INFO, "smtp auth: user name is %s, success!", authlogin);
+ } else {
+ syslog(LOG_MAIL | LOG_INFO, "smtp auth: user name is %s, failed!", authlogin);
+ }
+}
+
static int smtpauth_getl(void) {
int i;
if (!stralloc_copys(&smtpauth, ""
@@ -611,11 +691,14 @@
wait_pid(&st, pid);
if (wait_exitcode(st) == 0) {
out("235 go ahead\r\n"
+ authd = 1;
+ auth_smtplog(smtpauthlogin, SMTP_AUTH_SUCCESS);
flush();
relayclient="";
return;
}
sleep(2);
+ auth_smtplog(smtpauthlogin, SMTP_AUTH_FAILED);
out("535 auth failure\r\n"
/* done */
}
