[Snort-users] 回复: 回复: 回复: snort preprocessor reputation Shared memory loadentries always 0

Hui cao huica at ...589...
Thu May 11 10:10:42 EDT 2017


The error message indicates the previous reload has not finished yet. 
You should see all the instances have switched to new shared memory.  
You can issue reload command again after that.

Best,

Hui.


On 05/10/2017 10:44 PM, 阔野嘹歌 wrote:
> Thx hui.
> Thank you for taking the time to answer my questions.
> Now My snort reputation looks work well.
>
> I add IP(192.168.59.228) to file 
> /usr/reputation/iplists/black_list.blf,Then start snort_control use 
> follwing command:
> ./snort_control /usr/reputation/ 1361
>
> snort_control output :
> Response 0009 with code 0 and length 45
> 52 65 70 75 74 61 74 69  6F 6E 20 50 72 65 70 72   Reputati on Prepr
> 6F 63 65 73 73 6F 72 3A  20 4E 6F 20 73 65 67 6D   ocessor:  No segm
> 65 6E 74 73 20 72 65 63  65 69 76 65 64            ents rec eived
> Response 0000 without data
>
> But snort master does not respond, and snort not be blaked the IP 
> 192.168.59.128.
> I noticed snort output(Previous output not now):
> .........
> .....
>     Reputation Preprocessor: Size of shared memory segment 
> SFIPReputation.rt.0.0.0 is 1179648
>     Processing blacklist file /usr/reputation/iplists/black_list.blf
>     Reputation entries loaded: 3, invalid: 0, re-defined: 0 (from file 
> /usr/reputation/iplists/black_list.blf)
>     Processing whitelist file /usr/reputation/iplists/white_list.wlf
>     Reputation entries loaded: 0, invalid: 0, re-defined: 0 (from file 
> /usr/reputation/iplists/white_list.wlf)
> Reputation Preprocessor shared memory summary:
>     Reputation total memory usage: 329820 bytes
>     Reputation total entries loaded: 3, invalid: 0, re-defined: 0
>     Reputation Preprocessor: Received segment 0
>     Reputation Preprocessor: Instance 0 switched to segment_version 0
>
> But my blacklist file now has 4 IPs. (192.168.59.228 is new IP)It 
> looks blacklist not reload.
>
> My question is :
> 1.What should I do for geting load black list?
> 2.what is "1361" mean? How should I know what it means? I search snort 
> source,but I can't undstand it.following line is output:
>
> root at ...274...:~/code/snort# find.sh 1361
>  ################## FIND BEGIN ##################
> ./src/dynamic-plugins/sf_engine/sfprimetable.c:210: 1361, /* 1361 */
> ./src/dynamic-plugins/sf_engine/sfprimetable.c:1558: 31357, /* 31361 */
> ./src/dynamic-plugins/sf_engine/sfprimetable.c:2228:  136189, /* 136192 */
> ./src/target-based/sf_attribute_table_parser.c:1693: 1359,    0, 1360, 
>    0, 1361,    0, 1362,    0, 1363,    0,
> ./src/target-based/sf_attribute_table_parser.c:3452: 
>  11358,11358,11359,11359,11360,11360,11361,11361,11362,11362,
> ./src/target-based/sf_attribute_table_parser.c:4283: 1353, 1355, 1357, 
> 1359, 1361, 1363, 1365, 1367, 1369, 1371,
> ./src/target-based/sf_attribute_table_parser.c:5275: 1351, 1353, 1355, 
> 1357, 1359, 1361, 1363, 1365, 1367, 1369,
> ./src/target-based/sf_attribute_table_parser.c:5976: 
>  11358,11359,11360,11361,11362,11363,11364,11365,11366,11367,
> ./src/dynamic-preprocessors/include/sfprimetable.c:210: 1361, /* 1361 */
> ./src/dynamic-preprocessors/include/sfprimetable.c:1558: 31357, /* 
> 31361 */
> ./src/dynamic-preprocessors/include/sfprimetable.c:2228:  136189, /* 
> 136192 */
> ./src/sfutil/sfprimetable.c:210: 1361, /* 1361 */
> ./src/sfutil/sfprimetable.c:1558: 31357, /* 31361 */
> ./src/sfutil/sfprimetable.c:2228:  136189, /* 136192 */
>  ##################  FIND END  ##################
>
>
> Thanks.
> minggang su
>
> ------------------ 原始邮件 ------------------
> *发件人:* "Hui Cao (huica)";<huica at ...589...>;
> *发送时间:* 2017年5月10日(星期三) 晚上9:12
> *收件人:* "阔野嘹歌"<85358830 at ...15456...>; 
> "Snort-users"<snort-users at lists.sourceforge.net>;
> *主题:* Re: 回复: [Snort-users] 回复: snort preprocessor reputation 
> Shared memory loadentries always 0
>
> My question is :
>
> 1.What does 'Shared memory max instances: 2' mean? It mean I can only 
> start to two instances?
>
> Yes. You can set it to a higher number since it is configurable. 
> Configure option is “shared_max_instances”. I think the default is 50.
>
> 2.How do I know that my snort client uses a shared blacklist?I can't 
> get any infomation from client snort output.
>
> You have the output like this, it is a reader:
>
>    Mapped shared management region of size 128 as a reader.
>
>     Reputation Preprocessor: Size of shared memory segment 
> SFIPReputation.rt.0.0.0 is 1146880
>
> *From: *阔野嘹歌<85358830 at ...15456...>
> *Date: *Wednesday, May 10, 2017 at 12:54 AM
> *To: *"Hui Cao (huica)" <huica at ...589...>, Snort-users 
> <snort-users at lists.sourceforge.net>
> *Subject: *回复:[Snort-users] 回复:snort preprocessor reputation Shared 
> memory loadentries always 0
>
> Thx hui.
>
> I use the command as you give me:
>
> ./snort -G 0 -Q --process-all-events -c ../etc/snort.conf
>
>  The following is the output of the Master snort:
>
> .......
>
> ...
>
> Reputation config:
>
>     Reputation total memory usage: 0 bytes
>
>     Reputation total entries loaded: 0, invalid: 0, re-defined: 0
>
>     Memcap: 500 (Default) M bytes
>
>     Scan local network: ENABLED
>
>     Reputation priority:  whitelist(Default)
>
>     Nested IP: both
>
>     White action: unblack (Default)
>
>     Shared memory supported, Update directory: /usr/reputation/iplists
>
>     Shared memory refresh period: 60 (Default) seconds
>
>     Shared memory max instances: 2
>
> ..........
>
> ......
>
> Reload thread starting...
>
> Reload thread started, thread 0xa44f1b40 (26006)
>
>     Reputation Preprocessor: Size of shared memory segment 
> SFShmemMgmt.0.0 is 128
>
> Mapped shared management region of size 128 as a writer.
>
>     Reputation Preprocessor: Size of shared memory segment 
> SFIPReputation.rt.0.0.0 is 1146880
>
>     Processing blacklist file /usr/reputation/iplists/black_list.blf
>
>     Reputation entries loaded: 2, invalid: 0, re-defined: 0 (from file 
> /usr/reputation/iplists/black_list.blf)
>
>     Processing whitelist file /usr/reputation/iplists/white_list.wlf
>
>     Reputation entries loaded: 0, invalid: 0, re-defined: 0 (from file 
> /usr/reputation/iplists/white_list.wlf)
>
> Reputation Preprocessor shared memory summary:
>
>     Reputation total memory usage: 329712 bytes
>
>     Reputation total entries loaded: 2, invalid: 0, re-defined: 0
>
> ........
>
> .....
>
> Master snort looks work well.Next step ,I start a new snort instance 
> as client .It looks not load share memory black list info,following 
> line is my command:
>
> ./snort -G 1 -Q --process-all-events -c ../etc/snort.conf.smg.5.9
>
> It output:
>
> .......
>
> .....
>
> Reputation config:
>
>     Reputation total memory usage: 0 bytes
>
>     Reputation total entries loaded: 0, invalid: 0, re-defined: 0
>
>     Memcap: 500 (Default) M bytes
>
>     Scan local network: ENABLED
>
>     Reputation priority:  whitelist(Default)
>
>     Nested IP: both
>
>     White action: unblack (Default)
>
>     Shared memory supported, Update directory: /usr/reputation/iplists
>
>     Shared memory refresh period: 60 (Default) seconds
>
>     Shared memory max instances: 2
>
> ........
>
> ......
>
> Reload thread starting...
>
> Reload thread started, thread 0xa44a1b40 (26334)
>
>     Reputation Preprocessor: Size of shared memory segment 
> SFShmemMgmt.0.0 is 128
>
> Mapped shared management region of size 128 as a reader.
>
>     Reputation Preprocessor: Size of shared memory segment 
> SFIPReputation.rt.0.0.0 is 1146880
>
> ..........
>
> ....
>
> My question is :
>
> 1.What does 'Shared memory max instances: 2' mean? It mean I can only 
> start to two instances?
>
> 2.How do I know that my snort client uses a shared blacklist?I can't 
> get any infomation from client snort output.
>
> ------------------ 原始邮件 ------------------
>
> *发件人**:* "Hui Cao (huica)";<huica at ...589...>;
>
> *发送时间**:* 2017年5月9日(星期二) 晚上11:53
>
> *收件人**:* "阔野嘹歌"<85358830 at ...15456...>; 
> "Snort-users"<snort-users at lists.sourceforge.net>;
>
> *主**题**:* Re: [Snort-users] 回复:snort preprocessor reputation Shared 
> memory loadentries always 0
>
> You should use command :
>
> ./snort -G 0 -Q --process-all-events -c ../etc/snort.conf
>
> Only instance 0 will be a shared memory writer.
>
> Best,
> Hui.
> On 5/9/17, 11:46 AM, "阔野嘹歌" <85358830 at ...15456...> wrote:
>
>     sorry,Message attachments are not supported.
>     Here is my snort.conf:
>
>
>     # Reputation preprocessor. For more information see README.reputation
>     preprocessor reputation: \
>        memcap 500, \
>        scan_local, \
>     #   priority whitelist, \
>        white unblack, \
>        nested_ip both, \
>     #   whitelist /usr/reputation/iplists/white_list.wlf, \
>     #   blacklist /usr/reputation/iplists/black_list.blf, \
>        shared_mem /usr/reputation/iplists, \
>        shared_refresh 60
>
>
>
>
>
>
>
>
>
>     Here is my black_list.blf:
>     192.168.59.158/32
>     192.168.59.128/32
>
>
>
>
>     ------------------ 原始邮件 ------------------
> 发件人: "85358830";<85358830 at ...15456...>;
> 发送时间: 2017年5月9日(星期二) 晚上11:28
> 收件人: "Snort-users"<snort-users at lists.sourceforge.net>;
>
> 主题: [Snort-users] snort preprocessor reputation Shared memory 
> loadentries always 0
>
>
>
>     Good day to all! I'm using Snort 2.9.8.3 on a Debian 8.2 virtual 
> machine.To test reputation share memory and control-socket.I'm follow 
> Snort manual 2.2.20 shared memory support.step by step.but it looks 
> not work well.
>
>
>     My config file and whait/black list file in mail attachemnts.
>     The following line is my start snort command:
>     ./snort -G 1 -Q --process-all-events -c ../etc/snort.conf
>
>
>     The following is the output of the snort:
>     .......
>     ...
>     Reputation config:
>         Reputation total memory usage: 0 bytes
>         Reputation total entries loaded: 0, invalid: 0, re-defined: 0
>         Memcap: 500 (Default) M bytes
>         Scan local network: ENABLED
>         Reputation priority:  whitelist(Default)
>         Nested IP: both
>         White action: unblack (Default)
>         Shared memory supported, Update directory: /usr/reputation/iplists
>         Shared memory refresh period: 60 (Default) seconds
>         Shared memory max instances: 2
>
>     +++++++++++++++++++++++++++++++++++++++++++++++++++
>     Initializing rule chains...
>     1 Snort rules read
>         0 detection rules
>         0 decoder rules
>         1 preprocessor rules
>     1 Option Chains linked into 1 Chain Headers
>     0 Dynamic rules
>     +++++++++++++++++++++++++++++++++++++++++++++++++++
>
>     ..........
>     .....
>
>
>     nfq DAQ configured to inline.
>     Reload thread starting...
>     Reload thread started, thread 0xa443db40 (25579)
>         Reputation Preprocessor: Size of shared memory segment 
> SFShmemMgmt.0.0 is 128
>     Mapped shared management region of size 128 as a reader.
>
>     ........
>     .....
>
>
>     It appears that the blacklist is not load into shared memory.why?
>     who can tell me why?
>
>
>     I am searching for a long time on net. But no use. Please help or 
> try to give some ideas how to achieve this.
>
>     I'm sorry my English is not good.sorry I am a novice.
>     sorry.
>
>
>
>     Can someone give me some help?
>
>     Can the Chinese give me some help?in Chinese.
>
>     I am a lonely self learner, if you can give me a little help , 
> Thank you very much.
>     Best regards to 
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