A fix is available
APAR status
Closed as program error.
Error description
After migration to CICS TS 5.4, you start receiving messages: . DFHSO0123 Return code 406 received from function gsk_secure_socket_init of System SSL. Reason: An I/O error occurred. Peer: 9.1.1.100, TCPIPSERVICE: TCPServ. . DFHWB0732 CWXN CICS Web attach processing encountered a sockets I/O error while receiving a client request. Host IP address: 9.1.1.150. Client IP address: 9.1.1.100. TCPIPSERVICE: TCPServ . The problem was introduced by work done during 5.4 development to make the CICS sockets domain 64-bit. CICS was changed to return -1 to System SSL for all exception cases. Importantly this included when a connection was closed. CICS should be returning 0 in this case, as it has done on all previous releases, instead of -1. . A prior APAR PI89854 was taken to address similar behavior on an SSL socket RECEIVE callback routine. This APAR addresses a SEND. Additional Symptom(s) Search Keyword(s): KIXREVDAM DFHSO0002 SEVERE ERROR CODE 080C DFHSOSE GSK_RESPONSE(GSK_ERROR_IO) GSK_RETURN_CODE(196) HEX 196 IS DEC 406 GSK_RESPONSE GSK_ERROR_IO GSK_RETURN_CODE 196
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: All. * **************************************************************** * PROBLEM DESCRIPTION: DFHSO0123 and DFHWB0732 issued when an * * SSL connection is closed. * **************************************************************** A TCPIPSERVICE is installed that specifies SSL(YES). DFHSOCK makes a call to send SSL data. This returns sock_send_buffer_n equal to 0 and sock_response equal to sock_exception because the client had immediately closed the SSL connection without sending any data. DFHSOSE handles the return to System SSL and sets the return value to -1. This causes System SSL to return GSK_ERR_IO (406), causing CICS to issue messages DFHSO0123 and DFHWB0732. Additional keywords: msgDFHSO0123 SO0123 msgDFHWB0732 WB0732
Problem conclusion
DFHSOSE has been changed to return 0 to System SSL when a socket send request fails because the connection is closed.
Temporary fix
Comments
APAR Information
APAR number
PI98182
Reported component name
CICS TS Z/OS V5
Reported component ID
5655Y0400
Reported release
100
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-05-21
Closed date
2018-06-26
Last modified date
2020-01-07
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI56849
Modules/Macros
DFHSOAD DFHSOCK DFHSODM DFHSODUF DFHSOIS DFHSOL DFHSOLI DFHSOLS DFHSOLX DFHSOLX6 DFHSOM01 DFHSOM02 DFHSOM03 DFHSOPL DFHSORD DFHSOS00 DFHSOS01 DFHSOS02 DFHSOS03 DFHSOS04 DFHSOS05 DFHSOS06 DFHSOS07 DFHSOS08 DFHSOS09 DFHSOS10 DFHSOS11 DFHSOS12 DFHSOS13 DFHSOS14 DFHSOS15 DFHSOS16 DFHSOS17 DFHSOS18 DFHSOS19 DFHSOS20 DFHSOS21 DFHSOS22 DFHSOS23 DFHSOSE DFHSOSES DFHSOST DFHSOTB DFHSOTI DFHSOTRI DFHSOUE DFHSOXM
Fix information
Fixed component name
CICS TS Z/OS V5
Fixed component ID
5655Y0400
Applicable component levels
R100 PSY UI56849
UP18/06/27 P F806
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.4","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.4","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
07 January 2020