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File _service:obs_scm:backport-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch of Package net-snmp
From 49d60ba57f4b462df7dc5fd5b38b4425dab0982c Mon Sep 17 00:00:00 2001 From: Philippe Troin <phil+github-commits@fifi.org> Date: Sat, 3 Feb 2024 10:30:30 -0800 Subject: [PATCH] Add Linux 6.7 compatibility parsing /proc/net/snmp Linux 6.7 adds a new OutTransmits field to Ip in /proc/net/snmp. This breaks the hard-coded assumptions about the Ip line length. Add compatibility to parse Linux 6.7 Ip header while keep support for previous versions. Conflict:NA Reference:https://github.com/net-snmp/net-snmp/commit/49d60ba57f4b462df7dc5fd5b38b4425dab0982c --- .../ip-mib/data_access/systemstats_linux.c | 46 +++++++++++++++---- 1 file changed, 37 insertions(+), 9 deletions(-) diff --git a/agent/mibgroup/ip-mib/data_access/systemstats_linux.c b/agent/mibgroup/ip-mib/data_access/systemstats_linux.c index 49e0a34d5c..f04e828a94 100644 --- a/agent/mibgroup/ip-mib/data_access/systemstats_linux.c +++ b/agent/mibgroup/ip-mib/data_access/systemstats_linux.c @@ -36,7 +36,7 @@ netsnmp_access_systemstats_arch_init(void) } /* - /proc/net/snmp + /proc/net/snmp - Linux 6.6 and lower Ip: Forwarding DefaultTTL InReceives InHdrErrors InAddrErrors ForwDatagrams InUnknownProtos InDiscards InDelivers OutRequests OutDiscards OutNoRoutes ReasmTimeout ReasmReqds ReasmOKs ReasmFails FragOKs FragFails FragCreates Ip: 2 64 7083534 0 0 0 0 0 6860233 6548963 0 0 1 286623 63322 1 259920 0 0 @@ -49,6 +49,26 @@ netsnmp_access_systemstats_arch_init(void) Udp: InDatagrams NoPorts InErrors OutDatagrams Udp: 1491094 122 0 1466178 +* + /proc/net/snmp - Linux 6.7 and higher + + Ip: Forwarding DefaultTTL InReceives InHdrErrors InAddrErrors ForwDatagrams InUnknownProtos InDiscards InDelivers OutRequests OutDiscards OutNoRoutes ReasmTimeout ReasmReqds ReasmOKs ReasmFails FragOKs FragFails FragCreates OutTransmits + Ip: 1 64 50859058 496 0 37470604 0 0 20472980 7515791 1756 0 0 7264 3632 0 3548 0 7096 44961424 + + Icmp: InMsgs InErrors InCsumErrors InDestUnreachs InTimeExcds InParmProbs InSrcQuenchs InRedirects InEchos InEchoReps InTimestamps InTimestampReps InAddrMasks InAddrMaskReps OutMsgs OutErrors OutRateLimitGlobal OutRateLimitHost OutDestUnreachs OutTimeExcds OutParmProbs OutSrcQuenchs OutRedirects OutEchos OutEchoReps OutTimestamps OutTimestampReps OutAddrMasks OutAddrMaskReps + Icmp: 114447 2655 0 17589 0 0 0 0 66905 29953 0 0 0 0 143956 0 0 572 16610 484 0 0 0 59957 66905 0 0 0 0 + + IcmpMsg: InType0 InType3 InType8 OutType0 OutType3 OutType8 OutType11 + IcmpMsg: 29953 17589 66905 66905 16610 59957 484 + + Tcp: RtoAlgorithm RtoMin RtoMax MaxConn ActiveOpens PassiveOpens AttemptFails EstabResets CurrEstab InSegs OutSegs RetransSegs InErrs OutRsts InCsumErrors + Tcp: 1 200 120000 -1 17744 13525 307 3783 6 18093137 9277788 3499 8 7442 0 + + Udp: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors InCsumErrors IgnoredMulti MemErrors + Udp: 2257832 1422 0 2252835 0 0 0 84 0 + + UdpLite: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors InCsumErrors IgnoredMulti MemErrors + UdpLite: 0 0 0 0 0 0 0 0 0 */ @@ -101,10 +121,10 @@ _systemstats_v4(netsnmp_container* container, u_int load_flags) FILE *devin; char line[1024]; netsnmp_systemstats_entry *entry = NULL; - int scan_count; + int scan_count, expected_scan_count; char *stats, *start = line; int len; - unsigned long long scan_vals[19]; + unsigned long long scan_vals[20]; DEBUGMSGTL(("access:systemstats:container:arch", "load v4 (flags %x)\n", load_flags)); @@ -126,10 +146,17 @@ _systemstats_v4(netsnmp_container* container, u_int load_flags) */ NETSNMP_IGNORE_RESULT(fgets(line, sizeof(line), devin)); len = strlen(line); - if (224 != len) { + switch (len) { + case 224: + expected_scan_count = 19; + break; + case 237: + expected_scan_count = 20; + break; + default: fclose(devin); snmp_log(LOG_ERR, "systemstats_linux: unexpected header length in /proc/net/snmp." - " %d != 224\n", len); + " %d not in { 224, 237 } \n", len); return -4; } @@ -178,20 +205,20 @@ _systemstats_v4(netsnmp_container* container, u_int load_flags) memset(scan_vals, 0x0, sizeof(scan_vals)); scan_count = sscanf(stats, "%llu %llu %llu %llu %llu %llu %llu %llu %llu %llu" - "%llu %llu %llu %llu %llu %llu %llu %llu %llu", + "%llu %llu %llu %llu %llu %llu %llu %llu %llu %llu", &scan_vals[0],&scan_vals[1],&scan_vals[2], &scan_vals[3],&scan_vals[4],&scan_vals[5], &scan_vals[6],&scan_vals[7],&scan_vals[8], &scan_vals[9],&scan_vals[10],&scan_vals[11], &scan_vals[12],&scan_vals[13],&scan_vals[14], &scan_vals[15],&scan_vals[16],&scan_vals[17], - &scan_vals[18]); + &scan_vals[18],&scan_vals[19]); DEBUGMSGTL(("access:systemstats", " read %d values\n", scan_count)); - if(scan_count != 19) { + if(scan_count != expected_scan_count) { snmp_log(LOG_ERR, "error scanning systemstats data (expected %d, got %d)\n", - 19, scan_count); + expected_scan_count, scan_count); netsnmp_access_systemstats_entry_free(entry); return -4; } @@ -223,6 +250,7 @@ _systemstats_v4(netsnmp_container* container, u_int load_flags) entry->stats.HCOutFragFails.high = scan_vals[17] >> 32; entry->stats.HCOutFragCreates.low = scan_vals[18] & 0xffffffff; entry->stats.HCOutFragCreates.high = scan_vals[18] >> 32; + /* entry->stats. = scan_vals[19]; / * OutTransmits */ entry->stats.columnAvail[IPSYSTEMSTATSTABLE_HCINRECEIVES] = 1; entry->stats.columnAvail[IPSYSTEMSTATSTABLE_INHDRERRORS] = 1;
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