kernel/bpf-developer-tutorial
1
0
Fork 0
mirror of https://github.com/eunomia-bpf/bpf-developer-tutorial.git synced 2026-02-13 15:15:58 +08:00
Code Issues Packages Projects Releases Wiki Activity

fix: Update struct references from config to dynptr_cfg in README files

Browse Source
This commit is contained in:
github-actions[bot]
2026-02-01 00:33:21 +00:00
parent c42ba4f9ab
commit 9d08062cb7
2 changed files with 10 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/features/dynptr/README.md
View File

@@ -89,13 +89,13 @@ struct {
__uint(type, BPF_MAP_TYPE_ARRAY); __uint(type, BPF_MAP_TYPE_ARRAY);
__uint(max_entries, 1); __uint(max_entries, 1);
__type(key, __u32); __type(key, __u32);
__type(value, struct config); __type(value, struct dynptr_cfg);
} cfg_map SEC(".maps"); } cfg_map SEC(".maps");
SEC("tc") SEC("tc")
int dynptr_tc_ingress(struct __sk_buff *ctx) int dynptr_tc_ingress(struct __sk_buff *ctx)
{ {
const struct config *cfg; const struct dynptr_cfg *cfg;
struct bpf_dynptr skb_ptr; struct bpf_dynptr skb_ptr;
/* Temporary buffers for slice (data may be copied here) */ /* Temporary buffers for slice (data may be copied here) */
@@ -136,7 +136,8 @@ int dynptr_tc_ingress(struct __sk_buff *ctx)
return TC_ACT_OK; return TC_ACT_OK;
__u16 dport = bpf_ntohs(tcp->dest); __u16 dport = bpf_ntohs(tcp->dest);
__u8 drop = (cfg->blocked_port && dport == cfg->blocked_port); __u16 sport = bpf_ntohs(tcp->source);
__u8 drop = (cfg->blocked_port && (sport == cfg->blocked_port || dport == cfg->blocked_port));
/* Output variable-length event using ringbuf dynptr */ /* Output variable-length event using ringbuf dynptr */
if (cfg->enable_ringbuf) { if (cfg->enable_ringbuf) {
@@ -250,7 +251,7 @@ static int handle_event(void *ctx, void *data, size_t data_sz)
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
const char *ifname = NULL; const char *ifname = NULL;
struct config cfg = { .blocked_port = 0, .snap_len = 64, .enable_ringbuf = 1 }; struct dynptr_cfg cfg = { .blocked_port = 0, .snap_len = 64, .enable_ringbuf = 1 };
/* Parse arguments */ /* Parse arguments */
for (int i = 1; i < argc; i++) { for (int i = 1; i < argc; i++) {

9
src/features/dynptr/README.zh.md
View File

@@ -89,13 +89,13 @@ struct {
__uint(type, BPF_MAP_TYPE_ARRAY); __uint(type, BPF_MAP_TYPE_ARRAY);
__uint(max_entries, 1); __uint(max_entries, 1);
__type(key, __u32); __type(key, __u32);
__type(value, struct config); __type(value, struct dynptr_cfg);
} cfg_map SEC(".maps"); } cfg_map SEC(".maps");
SEC("tc") SEC("tc")
int dynptr_tc_ingress(struct __sk_buff *ctx) int dynptr_tc_ingress(struct __sk_buff *ctx)
{ {
const struct config *cfg; const struct dynptr_cfg *cfg;
struct bpf_dynptr skb_ptr; struct bpf_dynptr skb_ptr;
/* 用于切片的临时缓冲区（数据可能被复制到这里） */ /* 用于切片的临时缓冲区（数据可能被复制到这里） */
@@ -136,7 +136,8 @@ int dynptr_tc_ingress(struct __sk_buff *ctx)
return TC_ACT_OK; return TC_ACT_OK;
__u16 dport = bpf_ntohs(tcp->dest); __u16 dport = bpf_ntohs(tcp->dest);
__u8 drop = (cfg->blocked_port && dport == cfg->blocked_port); __u16 sport = bpf_ntohs(tcp->source);
__u8 drop = (cfg->blocked_port && (sport == cfg->blocked_port || dport == cfg->blocked_port));
/* 使用 ringbuf dynptr 输出可变长度事件 */ /* 使用 ringbuf dynptr 输出可变长度事件 */
if (cfg->enable_ringbuf) { if (cfg->enable_ringbuf) {
@@ -250,7 +251,7 @@ static int handle_event(void *ctx, void *data, size_t data_sz)
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
const char *ifname = NULL; const char *ifname = NULL;
struct config cfg = { .blocked_port = 0, .snap_len = 64, .enable_ringbuf = 1 }; struct dynptr_cfg cfg = { .blocked_port = 0, .snap_len = 64, .enable_ringbuf = 1 };
/* 解析参数 */ /* 解析参数 */
for (int i = 1; i < argc; i++) { for (int i = 1; i < argc; i++) {