0000504: IPv6 UDP socket problem - BusyBox Bug and Patch Tracking

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Category

Severity

Reproducibility

Date Submitted

Last Update

0000504

[uClibc] Networking Support

block

always

10-24-05 11:45

10-25-05 10:36

Reporter

Johan

View Status

public

Assigned To

uClibc

Priority

normal

Resolution

open

Status

assigned

Product Version

0.9.28

Summary

0000504: IPv6 UDP socket problem

Description

Below is a piece of code to open a socket and bind it to a local link address on ppp0. It works when compiled with glibc, but not when compiled with uclibc. What happens is that nothing shows up on socket although packets are coming in on that interface/port.

gcc is 4.0, uclibc is latest official. I have tried both linux2.4 and linux2.6(latest official).

/*cfg->ip is a local link address set in pppd call.*/
/*returnvalue checks removed for better readablility, they were all OK though.*/
/
bzero (&cfg->name6, sizeof (cfg->name6));
cfg->name6.sin6_family = AF_INET6;
cfg->name6.sin6_port = htonl(CMD_CHANNEL_PORT);
inet_pton(AF_INET6, cfg->ip, &(cfg->name6.sin6_addr));

cfg->name6.sin6_scope_id = if_nametoindex("ppp0");
cfg->Socket = socket( AF_INET6, SOCK_DGRAM, 0 ); //Create Socket, this does not work

//cfg->Socket = socket( AF_INET6, SOCK_STREAM, 0 ); //Create Socket, this works, for some reason

if( cfg->Socket < 0 ){
perror( "Unable to create socket.\n" );
return -1;
}
Bound=bind( cfg->Socket, (struct sockaddr*)&cfg->name6, sizeof( cfg->name6 ) );

Additional Information

Attached Files

Relationships

Notes
(0000642) Johan 10-25-05 10:36	Perhaps I should emphasize again that the address is a link local address, which thus need the cfg->name6.sin6_scope_id field.

Issue History
Date Modified	Username	Field	Change
10-24-05 11:45	Johan	New Issue
10-24-05 11:45	Johan	Status	new => assigned
10-24-05 11:45	Johan	Assigned To	=> uClibc
10-25-05 10:36	Johan	Note Added: 0000642