change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/samples/bpf/test_probe_write_user_user.c
..
..
@@ -1,21 +1,22 @@
1
1
 // SPDX-License-Identifier: GPL-2.0
2
2
 #include <stdio.h>
3
3
 #include <assert.h>
4
-#include <linux/bpf.h>
5
4
 #include <unistd.h>
6
5
 #include <bpf/bpf.h>
7
-#include "bpf_load.h"
6
+#include <bpf/libbpf.h>
8
7
 #include <sys/socket.h>
9
-#include <string.h>
10
8
 #include <netinet/in.h>
11
9
 #include <arpa/inet.h>
12
10
 
13
11
 int main(int ac, char **argv)
14
12
 {
15
-	int serverfd, serverconnfd, clientfd;
16
-	socklen_t sockaddr_len;
17
-	struct sockaddr serv_addr, mapped_addr, tmp_addr;
18
13
 	struct sockaddr_in *serv_addr_in, *mapped_addr_in, *tmp_addr_in;
14
+	struct sockaddr serv_addr, mapped_addr, tmp_addr;
15
+	int serverfd, serverconnfd, clientfd, map_fd;
16
+	struct bpf_link *link = NULL;
17
+	struct bpf_program *prog;
18
+	struct bpf_object *obj;
19
+	socklen_t sockaddr_len;
19
20
 	char filename[256];
20
21
 	char *ip;
21
22
 
..
..
@@ -24,10 +25,35 @@
24
25
 	tmp_addr_in = (struct sockaddr_in *)&tmp_addr;
25
26
 
26
27
 	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
28
+	obj = bpf_object__open_file(filename, NULL);
29
+	if (libbpf_get_error(obj)) {
30
+		fprintf(stderr, "ERROR: opening BPF object file failed\n");
31
+		return 0;
32
+	}
27
33
 
28
-	if (load_bpf_file(filename)) {
29
-		printf("%s", bpf_log_buf);
30
-		return 1;
34
+	prog = bpf_object__find_program_by_name(obj, "bpf_prog1");
35
+	if (libbpf_get_error(prog)) {
36
+		fprintf(stderr, "ERROR: finding a prog in obj file failed\n");
37
+		goto cleanup;
38
+	}
39
+
40
+	/* load BPF program */
41
+	if (bpf_object__load(obj)) {
42
+		fprintf(stderr, "ERROR: loading BPF object file failed\n");
43
+		goto cleanup;
44
+	}
45
+
46
+	map_fd = bpf_object__find_map_fd_by_name(obj, "dnat_map");
47
+	if (map_fd < 0) {
48
+		fprintf(stderr, "ERROR: finding a map in obj file failed\n");
49
+		goto cleanup;
50
+	}
51
+
52
+	link = bpf_program__attach(prog);
53
+	if (libbpf_get_error(link)) {
54
+		fprintf(stderr, "ERROR: bpf_program__attach failed\n");
55
+		link = NULL;
56
+		goto cleanup;
31
57
 	}
32
58
 
33
59
 	assert((serverfd = socket(AF_INET, SOCK_STREAM, 0)) > 0);
..
..
@@ -51,7 +77,7 @@
51
77
 	mapped_addr_in->sin_port = htons(5555);
52
78
 	mapped_addr_in->sin_addr.s_addr = inet_addr("255.255.255.255");
53
79
 
54
-	assert(!bpf_map_update_elem(map_fd[0], &mapped_addr, &serv_addr, BPF_ANY));
80
+	assert(!bpf_map_update_elem(map_fd, &mapped_addr, &serv_addr, BPF_ANY));
55
81
 
56
82
 	assert(listen(serverfd, 5) == 0);
57
83
 
..
..
@@ -75,5 +101,8 @@
75
101
 	/* Is the server's getsockname = the socket getpeername */
76
102
 	assert(memcmp(&serv_addr, &tmp_addr, sizeof(struct sockaddr_in)) == 0);
77
103
 
104
+cleanup:
105
+	bpf_link__destroy(link);
106
+	bpf_object__close(obj);
78
107
 	return 0;
79
108
 }