On 15/04/2008, Taymour A. El Erian <[EMAIL PROTECTED]> wrote:
> I have printed the password in the log and it is printed ok but the len
> is always 0.
Please read my reply.
I have just explained that 'len' is the length of the incoming SMUX
packet waiting to be processed. It is *NOT* the length of the password.
If the password is the last element (or the last element of this chunk),
then yes - len will always be 0.
> I went and modified the code of smux_auth_peer to just
> return 1 and of course this made the authentication succeed. I guess the
> problem actually is in the string comparison in this function.
It's most likely in the list of OIDs and passwords that are being checked.
> Please help as am not so familiar with snmp programming.
There's nothing particularly specific to SNMP about this bit.
It's simply a matter of checking exactly what is being compared.
Please find attached a patch (completely untested!), which ought
to provide some useful debugging information.
Dave
PS: Please could you fix your mail system.
It seemed to reject my earlier response as "unsolicited"!
Index: smux/smux.c
===================================================================
--- smux/smux.c (revision 16884)
+++ smux/smux.c (working copy)
@@ -922,10 +922,31 @@
smux_auth_peer(oid * name, size_t namelen, char *passwd, int fd)
{
int i;
+ oid oid_name[MAX_OID_LEN];
+ char passwd[SMUXMAXSTRLEN];
+ char oid_print[SMUXMAXSTRLEN];
+ size_t oid_name_len, string_len;
+
+ if (snmp_get_do_debugging()) {
+ snprint_objid(oid_print, sizeof(oid_print), name, namelen);
+ DEBUGMSGTL(("smux", "[smux_auth_peer] Authorizing: %s, %s\n",
+ oid_print, passwd));
+ }
+
for (i = 0; i < nauths; i++) {
+ if (snmp_get_do_debugging()) {
+ snprint_objid(oid_print, sizeof(oid_print),
+ Auths[i]->sa_oid, Auths[i]->sa_oid_len);
+ DEBUGMSGTL(("smux", "[smux_auth_peer] Checking OID: %s (%d)\n",
+ oid_print, i));
+ }
if (snmp_oid_compare(Auths[i]->sa_oid, Auths[i]->sa_oid_len,
name, namelen) == 0) {
+ if (snmp_get_do_debugging()) {
+ DEBUGMSGTL(("smux", "[smux_auth_peer] Checking P/W: %s (%d)\n",
+ Auths[i]->sa_passwd, Auths[i]->sa_active_fd));
+ }
if (!(strcmp(Auths[i]->sa_passwd, passwd)) &&
(Auths[i]->sa_active_fd == -1)) {
/*
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