已有数据同步功能完成

2026-01-29 10:47:24 +00:00
parent fe257cafec
commit 2bdb48d63d
27 changed files with 1134 additions and 139 deletions
--- a/ebpf/c/replica.bpf.c
+++ b/ebpf/c/replica.bpf.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/* Copyright (c) 2020 Facebook */
+#include <linux/bpf.h>
+#include <linux/ptrace.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#include "replica.h"
+
+char LICENSE[] SEC("license") = "Dual BSD/GPL";
+
+int my_pid = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} channel SEC(".maps");
+
+SEC("uprobe/kvs_create_snapshot_async")
+int uprobe_create_snapshot_async(struct pt_regs *ctx)
+{
+    struct event ev;
+	__builtin_memset(&ev, 0, sizeof(ev));
+
+    const char *ip;
+    __u32 port;
+
+    ev.type = EVENT_CREATE_SNAPSHOT_ASYNC;
+
+    ip   = (const char *)PT_REGS_PARM1(ctx);
+    port = (__u32)PT_REGS_PARM2(ctx);
+
+    bpf_probe_read_user_str(ev.data.sync.ip,
+                            sizeof(ev.data.sync.ip),
+                            ip);
+    ev.data.sync.port = port;
+
+    bpf_perf_event_output(ctx, &channel,
+                          BPF_F_CURRENT_CPU,
+                          &ev, sizeof(ev));
+    return 0;
+}
+
+SEC("uprobe/__compeleted_cmd")
+int uprobe_completed_cmd(struct pt_regs *ctx)
+{
+    struct event ev;
+	__builtin_memset(&ev, 0, sizeof(ev));
+
+    const __u8 *cmd;
+    __u32 len;
+
+    ev.type = EVENT_COMPLETED_CMD;
+
+    cmd = (const __u8 *)PT_REGS_PARM1(ctx);
+    len = (__u32)PT_REGS_PARM2(ctx);
+
+    if (len > sizeof(ev.data.cmd.cmd))
+        len = sizeof(ev.data.cmd.cmd);
+
+    ev.data.cmd.len = len;
+
+    bpf_probe_read_user(ev.data.cmd.cmd, len, cmd);
+
+    bpf_perf_event_output(ctx, &channel,
+                          BPF_F_CURRENT_CPU,
+                          &ev, sizeof(ev));
+    return 0;
+}
+
+
+SEC("uprobe/__create_snapshot_ok")
+int uprobe_create_snapshot_ok(struct pt_regs *ctx)
+{
+    struct event ev;
+	__builtin_memset(&ev, 0, sizeof(ev));
+	
+    const char *array_file;
+    const char *rbtree_file;
+    const char *hash_file;
+
+    ev.type = EVENT_CREATE_SNAPSHOT_OK;
+
+    array_file  = (const char *)PT_REGS_PARM1(ctx);
+    rbtree_file = (const char *)PT_REGS_PARM2(ctx);
+    hash_file   = (const char *)PT_REGS_PARM3(ctx);
+
+    bpf_probe_read_user_str(ev.data.ok.array_file,
+                            sizeof(ev.data.ok.array_file),
+                            array_file);
+    bpf_probe_read_user_str(ev.data.ok.rbtree_file,
+                            sizeof(ev.data.ok.rbtree_file),
+                            rbtree_file);
+    bpf_probe_read_user_str(ev.data.ok.hash_file,
+                            sizeof(ev.data.ok.hash_file),
+                            hash_file);
+
+    bpf_perf_event_output(ctx, &channel,
+                          BPF_F_CURRENT_CPU,
+                          &ev, sizeof(ev));
+    return 0;
+}