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  1. Core Server
  2. SERVER-14806

localhostAuthBypass jstest can fail for specific ifconfig outputs

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor - P4
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.7.5
    • Component/s: Testing Infrastructure
    • Labels:
      None
    • Environment:
      OpenSUSE 13.1 x86_64
    • Operating System:
      Linux
    • Steps To Reproduce:
      Hide

      1) Use OpenSUSE 13.1
      2) Run jstests/auth/localhostAuthBypass.js with smoke.py

      Show
      1) Use OpenSUSE 13.1 2) Run jstests/auth/localhostAuthBypass.js with smoke.py

      Description

      The localhostAuthBypass test uses the get_ipaddr method from jstests/libs/host_ipaddr.js to obtain the host's ipv4 address. get_ipaddr works on Unix systems by calling /sbin/ifconfig and performing some text processing on the output. An example of this output is as follows:

      inet addr:10.4.102.211 Bcast:10.4.255.255 Mask:255.255.0.0

      get_ipaddr greps for all ifconfig lines containing the string "inet", filters out all lines containing "127.0.0.1" and then removes the first occurrence of the string "addr:". The address is found using a regular expression which returns all characters after the string "inet " until whitespace is encountered.

      This process can fail if ifconfig returns a result which, when grepped, looks like:

      inet6 addr: ::1/128 Scope:Host
      inet addr:10.4.102.211 Bcast:10.4.255.255 Mask:255.255.0.0
      inet6 addr: fe80::3e15:c2ff:fedc:4994/64 Scope:Link

      When ifconfig returns an IPv6 address before an IPv4 address the "addr:" string will be removed from the leading IPv6 entry, which is subsequently ignored by the regular expression. This results in get_ipaddr returning an IPv4 address prefixed by "addr:", which is invalid.

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              Assignee:
              spencer.jackson Spencer Jackson
              Reporter:
              spencer.jackson Spencer Jackson
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                Updated:
                Resolved: