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[meta-networking] net-snmp: Fix systemstats_linux unexpected header length

Message ID 20251205063116.2046197-1-vanusuri@mvista.com
State New
Headers show
Series [meta-networking] net-snmp: Fix systemstats_linux unexpected header length | expand

Commit Message

Vijay Anusuri Dec. 5, 2025, 6:31 a.m. UTC
currently system journal contains:

snmpd[10442]: systemstats_linux: unexpected header length in /proc/net/snmp. 237 != 224

Backport a patch to fix this issue.

Upstream-Status: Backport [https://github.com/net-snmp/net-snmp/commit/49d60ba57f4b462df7dc5fd5b38b4425dab0982c]

Reference: https://github.com/net-snmp/net-snmp/issues/786

Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
---
 ...-compatibility-parsing-proc-net-snmp.patch | 122 ++++++++++++++++++
 .../net-snmp/net-snmp_5.9.4.bb                |   1 +
 2 files changed, 123 insertions(+)
 create mode 100644 meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch

Comments

Khem Raj Dec. 5, 2025, 6:35 a.m. UTC | #1
if this is meant for master then please rebase it on top of latest master
or master-next and resend please.

On Thu, Dec 4, 2025 at 10:31 PM Vijay Anusuri via lists.openembedded.org
<vanusuri=mvista.com@lists.openembedded.org> wrote:

> currently system journal contains:
>
> snmpd[10442]: systemstats_linux: unexpected header length in
> /proc/net/snmp. 237 != 224
>
> Backport a patch to fix this issue.
>
> Upstream-Status: Backport [
> https://github.com/net-snmp/net-snmp/commit/49d60ba57f4b462df7dc5fd5b38b4425dab0982c
> ]
>
> Reference: https://github.com/net-snmp/net-snmp/issues/786
>
> Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
> ---
>  ...-compatibility-parsing-proc-net-snmp.patch | 122 ++++++++++++++++++
>  .../net-snmp/net-snmp_5.9.4.bb                |   1 +
>  2 files changed, 123 insertions(+)
>  create mode 100644
> meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
>
> diff --git
> a/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
> b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
> new file mode 100644
> index 0000000000..2d9c310e39
> --- /dev/null
> +++
> b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
> @@ -0,0 +1,122 @@
> +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.
> +
> +Upstream-Status: Backport [
> https://github.com/net-snmp/net-snmp/commit/49d60ba57f4b462df7dc5fd5b38b4425dab0982c
> ]
> +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
> +---
> + .../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;
> diff --git a/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
> b/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
> index f9572a1869..4b24520019 100644
> --- a/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
> +++ b/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
> @@ -28,6 +28,7 @@ SRC_URI =
> "${SOURCEFORGE_MIRROR}/net-snmp/net-snmp-${PV}.tar.gz \
>
> file://0011-ac_add_search_path.m4-keep-consistent-between-32bit-.patch \
>             file://0012-Fix-configuration-of-NETSNMP_FD_MASK_TYPE.patch \
>             file://0001-Android-Fix-the-build.patch \
> +
>  file://0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch \
>            "
>  SRC_URI[sha256sum] =
> "8b4de01391e74e3c7014beb43961a2d6d6fa03acc34280b9585f4930745b0544"
>
> --
> 2.43.0
>
>
> -=-=-=-=-=-=-=-=-=-=-=-
> Links: You receive all messages sent to this group.
> View/Reply Online (#122335):
> https://lists.openembedded.org/g/openembedded-devel/message/122335
> Mute This Topic: https://lists.openembedded.org/mt/116626611/1997914
> Group Owner: openembedded-devel+owner@lists.openembedded.org
> Unsubscribe: https://lists.openembedded.org/g/openembedded-devel/unsub [
> raj.khem@gmail.com]
> -=-=-=-=-=-=-=-=-=-=-=-
>
>
Vijay Anusuri Dec. 5, 2025, 7:05 a.m. UTC | #2
Hi Khem,

This patch is intended for the *scarthgap* branch. The issue has already
been addressed in *master* by the following commit:

https://git.openembedded.org/meta-openembedded/commit/?id=8147a884c68d8fdd89939a8443a902b65297520c

Thanks & Regards,
Vijay

On Fri, Dec 5, 2025 at 12:06 PM Khem Raj <raj.khem@gmail.com> wrote:

> if this is meant for master then please rebase it on top of latest master
> or master-next and resend please.
>
> On Thu, Dec 4, 2025 at 10:31 PM Vijay Anusuri via lists.openembedded.org
> <vanusuri=mvista.com@lists.openembedded.org> wrote:
>
>> currently system journal contains:
>>
>> snmpd[10442]: systemstats_linux: unexpected header length in
>> /proc/net/snmp. 237 != 224
>>
>> Backport a patch to fix this issue.
>>
>> Upstream-Status: Backport [
>> https://github.com/net-snmp/net-snmp/commit/49d60ba57f4b462df7dc5fd5b38b4425dab0982c
>> ]
>>
>> Reference: https://github.com/net-snmp/net-snmp/issues/786
>>
>> Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
>> ---
>>  ...-compatibility-parsing-proc-net-snmp.patch | 122 ++++++++++++++++++
>>  .../net-snmp/net-snmp_5.9.4.bb                |   1 +
>>  2 files changed, 123 insertions(+)
>>  create mode 100644
>> meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
>>
>> diff --git
>> a/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
>> b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
>> new file mode 100644
>> index 0000000000..2d9c310e39
>> --- /dev/null
>> +++
>> b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
>> @@ -0,0 +1,122 @@
>> +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.
>> +
>> +Upstream-Status: Backport [
>> https://github.com/net-snmp/net-snmp/commit/49d60ba57f4b462df7dc5fd5b38b4425dab0982c
>> ]
>> +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
>> +---
>> + .../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;
>> diff --git a/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
>> b/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
>> index f9572a1869..4b24520019 100644
>> --- a/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
>> +++ b/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
>> @@ -28,6 +28,7 @@ SRC_URI =
>> "${SOURCEFORGE_MIRROR}/net-snmp/net-snmp-${PV}.tar.gz \
>>
>> file://0011-ac_add_search_path.m4-keep-consistent-between-32bit-.patch \
>>             file://0012-Fix-configuration-of-NETSNMP_FD_MASK_TYPE.patch \
>>             file://0001-Android-Fix-the-build.patch \
>> +
>>  file://0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch \
>>            "
>>  SRC_URI[sha256sum] =
>> "8b4de01391e74e3c7014beb43961a2d6d6fa03acc34280b9585f4930745b0544"
>>
>> --
>> 2.43.0
>>
>>
>> -=-=-=-=-=-=-=-=-=-=-=-
>> Links: You receive all messages sent to this group.
>> View/Reply Online (#122335):
>> https://lists.openembedded.org/g/openembedded-devel/message/122335
>> Mute This Topic: https://lists.openembedded.org/mt/116626611/1997914
>> Group Owner: openembedded-devel+owner@lists.openembedded.org
>> Unsubscribe: https://lists.openembedded.org/g/openembedded-devel/unsub [
>> raj.khem@gmail.com]
>> -=-=-=-=-=-=-=-=-=-=-=-
>>
>>
Vijay Anusuri Dec. 5, 2025, 7:12 a.m. UTC | #3
I forgot to add scarthgap in the subject line. I will resend the patch
again.

Thanks & Regards,
Vijay

On Fri, Dec 5, 2025 at 12:35 PM Vijay Anusuri via lists.openembedded.org
<vanusuri=mvista.com@lists.openembedded.org> wrote:

> Hi Khem,
>
> This patch is intended for the *scarthgap* branch. The issue has already
> been addressed in *master* by the following commit:
>
>
> https://git.openembedded.org/meta-openembedded/commit/?id=8147a884c68d8fdd89939a8443a902b65297520c
>
> Thanks & Regards,
> Vijay
>
> On Fri, Dec 5, 2025 at 12:06 PM Khem Raj <raj.khem@gmail.com> wrote:
>
>> if this is meant for master then please rebase it on top of latest master
>> or master-next and resend please.
>>
>> On Thu, Dec 4, 2025 at 10:31 PM Vijay Anusuri via lists.openembedded.org
>> <vanusuri=mvista.com@lists.openembedded.org> wrote:
>>
>>> currently system journal contains:
>>>
>>> snmpd[10442]: systemstats_linux: unexpected header length in
>>> /proc/net/snmp. 237 != 224
>>>
>>> Backport a patch to fix this issue.
>>>
>>> Upstream-Status: Backport [
>>> https://github.com/net-snmp/net-snmp/commit/49d60ba57f4b462df7dc5fd5b38b4425dab0982c
>>> ]
>>>
>>> Reference: https://github.com/net-snmp/net-snmp/issues/786
>>>
>>> Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
>>> ---
>>>  ...-compatibility-parsing-proc-net-snmp.patch | 122 ++++++++++++++++++
>>>  .../net-snmp/net-snmp_5.9.4.bb                |   1 +
>>>  2 files changed, 123 insertions(+)
>>>  create mode 100644
>>> meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
>>>
>>> diff --git
>>> a/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
>>> b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
>>> new file mode 100644
>>> index 0000000000..2d9c310e39
>>> --- /dev/null
>>> +++
>>> b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
>>> @@ -0,0 +1,122 @@
>>> +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.
>>> +
>>> +Upstream-Status: Backport [
>>> https://github.com/net-snmp/net-snmp/commit/49d60ba57f4b462df7dc5fd5b38b4425dab0982c
>>> ]
>>> +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
>>> +---
>>> + .../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;
>>> diff --git a/meta-networking/recipes-protocols/net-snmp/
>>> net-snmp_5.9.4.bb b/meta-networking/recipes-protocols/net-snmp/
>>> net-snmp_5.9.4.bb
>>> index f9572a1869..4b24520019 100644
>>> --- a/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
>>> +++ b/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
>>> @@ -28,6 +28,7 @@ SRC_URI =
>>> "${SOURCEFORGE_MIRROR}/net-snmp/net-snmp-${PV}.tar.gz \
>>>
>>> file://0011-ac_add_search_path.m4-keep-consistent-between-32bit-.patch \
>>>             file://0012-Fix-configuration-of-NETSNMP_FD_MASK_TYPE.patch \
>>>             file://0001-Android-Fix-the-build.patch \
>>> +
>>>  file://0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch \
>>>            "
>>>  SRC_URI[sha256sum] =
>>> "8b4de01391e74e3c7014beb43961a2d6d6fa03acc34280b9585f4930745b0544"
>>>
>>> --
>>> 2.43.0
>>>
>>>
>>>
>>>
>>>
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> vanusuri@mvista.com]
> -=-=-=-=-=-=-=-=-=-=-=-
>
>
diff mbox series

Patch

diff --git a/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
new file mode 100644
index 0000000000..2d9c310e39
--- /dev/null
+++ b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch
@@ -0,0 +1,122 @@ 
+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.
+
+Upstream-Status: Backport [https://github.com/net-snmp/net-snmp/commit/49d60ba57f4b462df7dc5fd5b38b4425dab0982c]
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ .../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;
diff --git a/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb b/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
index f9572a1869..4b24520019 100644
--- a/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
+++ b/meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb
@@ -28,6 +28,7 @@  SRC_URI = "${SOURCEFORGE_MIRROR}/net-snmp/net-snmp-${PV}.tar.gz \
            file://0011-ac_add_search_path.m4-keep-consistent-between-32bit-.patch \
            file://0012-Fix-configuration-of-NETSNMP_FD_MASK_TYPE.patch \
            file://0001-Android-Fix-the-build.patch \
+           file://0001-Add-Linux-6.7-compatibility-parsing-proc-net-snmp.patch \
           "
 SRC_URI[sha256sum] = "8b4de01391e74e3c7014beb43961a2d6d6fa03acc34280b9585f4930745b0544"