bpf: Access bpf_sock's src_ip4 and sorc_port in BPF_CGROUP_INET_SOCK_RELEASE hook

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I545NW
CVE: NA

--------------------------------

Access bpf_sock's src_ip4 and sorc_port in BPF_CGROUP_INET_SOCK_RELEASE
hook.
Signed-off-by: NLiu Jian <liujian56@huawei.com>
Reviewed-by: NWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

net/core/filter.c

@@ -7742,6 +7742,7 @@ static bool __sock_filter_check_attach_type(int off,
 	case bpf_ctx_range(struct bpf_sock, src_ip4):
 		switch (attach_type) {
 		case BPF_CGROUP_INET4_POST_BIND:
+		case BPF_CGROUP_INET_SOCK_RELEASE:
 			goto read_only;
 		default:
 			return false;
@@ -7757,6 +7758,7 @@ static bool __sock_filter_check_attach_type(int off,
 		switch (attach_type) {
 		case BPF_CGROUP_INET4_POST_BIND:
 		case BPF_CGROUP_INET6_POST_BIND:
+		case BPF_CGROUP_INET_SOCK_RELEASE:
 			goto read_only;
 		default:
 			return false;