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Diffstat (limited to 'lib/snmp/doc/src/notes.xml')
| -rw-r--r-- | lib/snmp/doc/src/notes.xml | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/snmp/doc/src/notes.xml b/lib/snmp/doc/src/notes.xml index 40e761b2af..21c417f0c1 100644 --- a/lib/snmp/doc/src/notes.xml +++ b/lib/snmp/doc/src/notes.xml @@ -62,6 +62,28 @@ <list type="bulleted"> <item> + <p>[agent] Reading the value of the vacmViewTreeFamilyMask returns + it in the wrong (internal bitlist) format. </p> + <p>The vacmViewTreeFamilyMask is defined as a bit string in the MIB + (OCTET STRING). Internally a bitlist (list of 1's and 0's, + see <seealso marker="snmp_agent_config_files#vacm">vacm config file</seealso> + for more info) is used. + However, the MIB implementation assumed the latter, effectively + rendering all attempts to read/set masks via SNMP unsuccessful. </p> + <p>Since the mask is used in hot paths (e.g. access permission checks + for each SNMP operation, the bitlist representation of the mask has + benefits (e.g. faster processing). Reading/writing the view mask + objects is less time-critical. Therefore, to fix the issue, convert + between the bitlist (internal) representation and bitstring + (external) when the vacmViewTreeFamilyMask objects are accessed. </p> + <p>Also, the check of the vacm config file was invalid with + regard to the mask value. It was assumed to be a proper oid, which + is not strictly the case (see bitlist above). </p> + <p>Own Id: OTP-11177</p> + <p>Stefan Zegenhagen</p> + </item> + + <item> <p>[agent] The counter increment function in the local-db was incorrect. It did not handle counter wrap correctly. </p> <p>Own Id: OTP-11192</p> |