misc/98872: fetch does not bind ip for ftp data stream on download
Andrus Nomm
andrus at wask.org
Mon Jun 12 20:40:24 UTC 2006
>Number: 98872
>Category: misc
>Synopsis: fetch does not bind ip for ftp data stream on download
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Jun 12 20:40:13 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Andrus Nomm
>Release: 4.11-RELEASE-p10
>Organization:
>Environment:
FreeBSD cell.wask.org 4.11-RELEASE-p10 FreeBSD 4.11-RELEASE-p10 #14: Fri Jun 10 21:40:26 EEST 2005 root at cell.members.ee:/usr/obj/usr/src/sys/MEMBERS i386
>Description:
While fetching files from remote ftp site and specifing FETCH_BIND_ADDRESS fetch does not bind it while creating ftp data connection.
strace shows:
On connecting to ftp site (login)
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("83.166.48.25")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(21), sin_addr=inet_addr("130.240.22.195")}, 16) = 0
On opening ftp data connection:
getpeername(3, {sa_family=AF_INET, sin_port=htons(21), sin_addr=inet_addr("130.240.22.195")}, [16]) = 0
connect(4, {sa_family=AF_INET, sin_port=htons(53456), sin_addr=inet_addr("130.240.22.195")}, 16^C <unfinished ...>
bind ip is missing
>How-To-Repeat:
Bind ip via FETCH_BIND_ADDRESS.
Try to download from ftp (block primary ip of server)
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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