[asterisk-bugs] [JIRA] (ASTERISK-25817) SIP keep alive messages contain trailing null byte

[hypherion (JIRA)]

hypherion created ASTERISK-25817:
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             Summary: SIP keep alive messages contain trailing null byte
                 Key: ASTERISK-25817
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25817
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Resources/res_pjsip_keepalive
    Affects Versions: 13.7.2
         Environment: Fedora 20
            Reporter: hypherion
            Severity: Minor
         Attachments: keepalive_packet.png

When configured with the 'keepalive' option (keepalive = 30 in sip.conf), Asterisk sends periodic keep alive packets to peers. These packets as sent with content '\r\n\0' instead of 'r\n\r\n' as indicated by RFC5626 section 4.4.1.
This has the potential to confuse clients and not be interpreted as 'ping' packets.



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