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Handle broken netlink attributes

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This commit is contained in:
Ruihan Li
2025-06-11 23:50:57 +08:00
committed by Jianfeng Jiang
parent deab9b6f72
commit 796635486c
7 changed files with 187 additions and 99 deletions
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51
test/apps/network/netlink_route.c
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@ -152,6 +152,8 @@ char buffer[BUFFER_SIZE];
struct nl_req {
struct nlmsghdr hdr;
struct ifaddrmsg ifa;
struct nlattr ahdr;
char abuf[4];
};
FN_TEST(get_addr_error)
@ -184,41 +186,40 @@ FN_TEST(get_addr_error)
((struct nlmsgerr *)NLMSG_DATA(buffer))->error ==
-EOPNOTSUPP);
int found_new_addr;
#define TEST_KERNEL_RESPONSE \
found_new_addr = 0; \
while (1) { \
size_t recv_len = \
TEST_SUCC(recv(sock_fd, buffer, BUFFER_SIZE, 0)); \
\
int found_done = TEST_SUCC(find_new_addr_until_done( \
buffer, recv_len, &found_new_addr)); \
\
if (found_done != 0) { \
break; \
} \
}
// 2. Invalid required index
req.hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP | NLM_F_ACK;
req.ifa.ifa_index = 9999;
TEST_SUCC(sendmsg(sock_fd, &msg, 0));
int found_new_addr = 0;
while (1) {
size_t recv_len =
TEST_SUCC(recv(sock_fd, buffer, BUFFER_SIZE, 0));
int found_done = TEST_SUCC(find_new_addr_until_done(
buffer, recv_len, &found_new_addr));
if (found_done != 0) {
break;
}
}
TEST_KERNEL_RESPONSE;
// 3. Invalid required family
req.ifa.ifa_family = 255;
req.ifa.ifa_index = 0;
TEST_SUCC(sendmsg(sock_fd, &msg, 0));
TEST_KERNEL_RESPONSE;
found_new_addr = 0;
while (1) {
size_t recv_len =
TEST_SUCC(recv(sock_fd, buffer, BUFFER_SIZE, 0));
int found_done = TEST_SUCC(find_new_addr_until_done(
buffer, recv_len, &found_new_addr));
if (found_done != 0) {
break;
}
}
// 4. Unknown attribute
req.ahdr.nla_type = 0xdeef;
req.ahdr.nla_len = sizeof(req.ahdr) + sizeof(req.abuf);
req.hdr.nlmsg_len = sizeof(req);
iov = (struct iovec){ &req, sizeof(req) };
TEST_SUCC(sendmsg(sock_fd, &msg, 0));
TEST_KERNEL_RESPONSE;
TEST_SUCC(close(sock_fd));
}