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netwatcher :更改uprobe适配判断、增添redis监控信息 (incomplete) (#835)
* add the redis info (incomplete) * Update packet.bpf.h * fix the bug * 11 --------- Co-authored-by: zmx <xupt_zmx>
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eBPF_Supermarket/Network_Subsystem/net_watcher/data/connects.log
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +0,0 @@ | ||
| connection{pid="214827",sock="0xffff944e0c3dda00",src="192.168.239.132:35422",dst="20.189.173.1:443",is_server="0",backlog="-",maxbacklog="-",cwnd="-",ssthresh="-",sndbuf="-",wmem_queued="-",rx_bytes="-",tx_bytes="-",srtt="-",duration="-",total_retrans="-",fast_retrans="-",timeout_retrans="-"} | ||
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60 changes: 60 additions & 0 deletions
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eBPF_Supermarket/Network_Subsystem/net_watcher/redis.bpf.h
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|---|---|---|
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| // Copyright 2023 The LMP Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://github.com/linuxkerneltravel/lmp/blob/develop/LICENSE | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| // author: [email protected] | ||
| // mysql | ||
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| #include "common.bpf.h" | ||
| #include "redis_helper.bpf.h" | ||
| #define MAXEPOLL 10 | ||
| static __always_inline int __handle_redis_start(struct pt_regs *ctx) { | ||
| struct client *cli = (struct client *)PT_REGS_PARM1(ctx); | ||
| int argc; | ||
| void *ptr; | ||
| char name[100]=""; | ||
| int argv_len; | ||
| bpf_probe_read(&argc, sizeof(argc), &cli->argc); | ||
| bpf_printk("%d",argc); | ||
| robj **arg0; | ||
| robj *arg1; | ||
| //unsigned type; | ||
| unsigned encoding; | ||
| unsigned lru; | ||
| int refcount; | ||
| bpf_probe_read(&arg0, sizeof(arg0), &cli->argv); | ||
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| // 读取 argv[0]，即第一个命令参数 | ||
| bpf_probe_read(&arg1, sizeof(arg1), &arg0[0]); | ||
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| for(int i=0;i<argc&&i<MAXEPOLL;i++) | ||
| { | ||
| bpf_probe_read(&arg1, sizeof(arg1), &arg0[i]); | ||
| // 读取 argv[i]->ptr 中的字符串 | ||
| bpf_probe_read(&ptr, sizeof(ptr),&arg1->ptr); | ||
| bpf_probe_read_str(name, sizeof(name),ptr); | ||
| bpf_printk("%s",name); | ||
| } | ||
| // 读取 argv[0]->ptr 中的字符串 | ||
| bpf_probe_read(&ptr, sizeof(ptr),&arg1->ptr); | ||
| bpf_probe_read_str(name, sizeof(name),ptr); | ||
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| bpf_probe_read(&argv_len, sizeof(argv_len), &cli->argv_len_sum); | ||
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| bpf_printk("%d",argv_len); | ||
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| pid_t pid = bpf_get_current_pid_tgid() >> 32; | ||
| return 0; | ||
| } | ||
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eBPF_Supermarket/Network_Subsystem/net_watcher/redis_helper.bpf.h
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| // Copyright 2023 The LMP Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://github.com/linuxkerneltravel/lmp/blob/develop/LICENSE | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| // author: [email protected] | ||
| // | ||
| // netwatcher libbpf 内核<->用户 传递信息相关结构体 | ||
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| #ifndef __REDIS_HELPER_BPF_H | ||
| #define __REDIS_HELPER_BPF_H | ||
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| #include "netwatcher.h" | ||
| #include "vmlinux.h" | ||
| #include <asm-generic/errno.h> | ||
| #include <bpf/bpf_core_read.h> | ||
| #include <bpf/bpf_endian.h> | ||
| #include <bpf/bpf_helpers.h> | ||
| #include <bpf/bpf_tracing.h> | ||
| #include <string.h> | ||
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| #define LRU_BITS 24 | ||
| typedef struct redisObject { | ||
| unsigned type:4; | ||
| unsigned encoding:4; | ||
| unsigned lru:24; | ||
| int refcount; | ||
| void *ptr; | ||
| } robj; | ||
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| struct client { | ||
| u64 id; /* Client incremental unique ID. */ | ||
| u64 conn; | ||
| int resp; /* RESP protocol version. Can be 2 or 3. */ | ||
| u64 db; /* Pointer to currently SELECTed DB. */ | ||
| robj *name; /* As set by CLIENT SETNAME. */ | ||
| char* querybuf; /* Buffer we use to accumulate client queries. */ | ||
| unsigned long qb_pos; /* The position we have read in querybuf. */ | ||
| char* pending_querybuf; | ||
| unsigned long querybuf_peak; /* Recent (100ms or more) peak of querybuf size. */ | ||
| int argc; /* Num of arguments of current command. */ | ||
| robj **argv; /* Arguments of current command. */ | ||
| unsigned long argv_len_sum; /* Size of argv array (may be more than argc) */ | ||
| }; | ||
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| #endif |