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-rw-r--r--test/syscalls/linux/BUILD2
-rw-r--r--test/syscalls/linux/socket_netlink_route.cc296
-rw-r--r--test/syscalls/linux/socket_netlink_util.cc45
-rw-r--r--test/syscalls/linux/socket_netlink_util.h9
4 files changed, 297 insertions, 55 deletions
diff --git a/test/syscalls/linux/BUILD b/test/syscalls/linux/BUILD
index 273b014d6..f2e3c7072 100644
--- a/test/syscalls/linux/BUILD
+++ b/test/syscalls/linux/BUILD
@@ -2769,9 +2769,11 @@ cc_binary(
deps = [
":socket_netlink_util",
":socket_test_util",
+ "//test/util:capability_util",
"//test/util:cleanup",
"//test/util:file_descriptor",
"@com_google_absl//absl/strings:str_format",
+ "@com_google_absl//absl/types:optional",
gtest,
"//test/util:test_main",
"//test/util:test_util",
diff --git a/test/syscalls/linux/socket_netlink_route.cc b/test/syscalls/linux/socket_netlink_route.cc
index 1e28e658d..e5aed1eec 100644
--- a/test/syscalls/linux/socket_netlink_route.cc
+++ b/test/syscalls/linux/socket_netlink_route.cc
@@ -14,6 +14,7 @@
#include <arpa/inet.h>
#include <ifaddrs.h>
+#include <linux/if.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <sys/socket.h>
@@ -25,8 +26,10 @@
#include "gtest/gtest.h"
#include "absl/strings/str_format.h"
+#include "absl/types/optional.h"
#include "test/syscalls/linux/socket_netlink_util.h"
#include "test/syscalls/linux/socket_test_util.h"
+#include "test/util/capability_util.h"
#include "test/util/cleanup.h"
#include "test/util/file_descriptor.h"
#include "test/util/test_util.h"
@@ -38,6 +41,8 @@ namespace testing {
namespace {
+constexpr uint32_t kSeq = 12345;
+
using ::testing::AnyOf;
using ::testing::Eq;
@@ -113,58 +118,224 @@ void CheckGetLinkResponse(const struct nlmsghdr* hdr, int seq, int port) {
// TODO(mpratt): Check ifinfomsg contents and following attrs.
}
+PosixError DumpLinks(
+ const FileDescriptor& fd, uint32_t seq,
+ const std::function<void(const struct nlmsghdr* hdr)>& fn) {
+ struct request {
+ struct nlmsghdr hdr;
+ struct ifinfomsg ifm;
+ };
+
+ struct request req = {};
+ req.hdr.nlmsg_len = sizeof(req);
+ req.hdr.nlmsg_type = RTM_GETLINK;
+ req.hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+ req.hdr.nlmsg_seq = seq;
+ req.ifm.ifi_family = AF_UNSPEC;
+
+ return NetlinkRequestResponse(fd, &req, sizeof(req), fn, false);
+}
+
TEST(NetlinkRouteTest, GetLinkDump) {
FileDescriptor fd =
ASSERT_NO_ERRNO_AND_VALUE(NetlinkBoundSocket(NETLINK_ROUTE));
uint32_t port = ASSERT_NO_ERRNO_AND_VALUE(NetlinkPortID(fd.get()));
+ // Loopback is common among all tests, check that it's found.
+ bool loopbackFound = false;
+ ASSERT_NO_ERRNO(DumpLinks(fd, kSeq, [&](const struct nlmsghdr* hdr) {
+ CheckGetLinkResponse(hdr, kSeq, port);
+ if (hdr->nlmsg_type != RTM_NEWLINK) {
+ return;
+ }
+ ASSERT_GE(hdr->nlmsg_len, NLMSG_SPACE(sizeof(struct ifinfomsg)));
+ const struct ifinfomsg* msg =
+ reinterpret_cast<const struct ifinfomsg*>(NLMSG_DATA(hdr));
+ std::cout << "Found interface idx=" << msg->ifi_index
+ << ", type=" << std::hex << msg->ifi_type;
+ if (msg->ifi_type == ARPHRD_LOOPBACK) {
+ loopbackFound = true;
+ EXPECT_NE(msg->ifi_flags & IFF_LOOPBACK, 0);
+ }
+ }));
+ EXPECT_TRUE(loopbackFound);
+}
+
+struct Link {
+ int index;
+ std::string name;
+};
+
+PosixErrorOr<absl::optional<Link>> FindLoopbackLink() {
+ ASSIGN_OR_RETURN_ERRNO(FileDescriptor fd, NetlinkBoundSocket(NETLINK_ROUTE));
+
+ absl::optional<Link> link;
+ RETURN_IF_ERRNO(DumpLinks(fd, kSeq, [&](const struct nlmsghdr* hdr) {
+ if (hdr->nlmsg_type != RTM_NEWLINK ||
+ hdr->nlmsg_len < NLMSG_SPACE(sizeof(struct ifinfomsg))) {
+ return;
+ }
+ const struct ifinfomsg* msg =
+ reinterpret_cast<const struct ifinfomsg*>(NLMSG_DATA(hdr));
+ if (msg->ifi_type == ARPHRD_LOOPBACK) {
+ const auto* rta = FindRtAttr(hdr, msg, IFLA_IFNAME);
+ if (rta == nullptr) {
+ // Ignore links that do not have a name.
+ return;
+ }
+
+ link = Link();
+ link->index = msg->ifi_index;
+ link->name = std::string(reinterpret_cast<const char*>(RTA_DATA(rta)));
+ }
+ }));
+ return link;
+}
+
+// CheckLinkMsg checks a netlink message against an expected link.
+void CheckLinkMsg(const struct nlmsghdr* hdr, const Link& link) {
+ ASSERT_THAT(hdr->nlmsg_type, Eq(RTM_NEWLINK));
+ ASSERT_GE(hdr->nlmsg_len, NLMSG_SPACE(sizeof(struct ifinfomsg)));
+ const struct ifinfomsg* msg =
+ reinterpret_cast<const struct ifinfomsg*>(NLMSG_DATA(hdr));
+ EXPECT_EQ(msg->ifi_index, link.index);
+
+ const struct rtattr* rta = FindRtAttr(hdr, msg, IFLA_IFNAME);
+ EXPECT_NE(nullptr, rta) << "IFLA_IFNAME not found in message.";
+ if (rta != nullptr) {
+ std::string name(reinterpret_cast<const char*>(RTA_DATA(rta)));
+ EXPECT_EQ(name, link.name);
+ }
+}
+
+TEST(NetlinkRouteTest, GetLinkByIndex) {
+ absl::optional<Link> loopback_link =
+ ASSERT_NO_ERRNO_AND_VALUE(FindLoopbackLink());
+ ASSERT_TRUE(loopback_link.has_value());
+
+ FileDescriptor fd =
+ ASSERT_NO_ERRNO_AND_VALUE(NetlinkBoundSocket(NETLINK_ROUTE));
+
struct request {
struct nlmsghdr hdr;
struct ifinfomsg ifm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req = {};
req.hdr.nlmsg_len = sizeof(req);
req.hdr.nlmsg_type = RTM_GETLINK;
- req.hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+ req.hdr.nlmsg_flags = NLM_F_REQUEST;
req.hdr.nlmsg_seq = kSeq;
req.ifm.ifi_family = AF_UNSPEC;
+ req.ifm.ifi_index = loopback_link->index;
- // Loopback is common among all tests, check that it's found.
- bool loopbackFound = false;
+ bool found = false;
ASSERT_NO_ERRNO(NetlinkRequestResponse(
fd, &req, sizeof(req),
[&](const struct nlmsghdr* hdr) {
- CheckGetLinkResponse(hdr, kSeq, port);
- if (hdr->nlmsg_type != RTM_NEWLINK) {
- return;
- }
- ASSERT_GE(hdr->nlmsg_len, NLMSG_SPACE(sizeof(struct ifinfomsg)));
- const struct ifinfomsg* msg =
- reinterpret_cast<const struct ifinfomsg*>(NLMSG_DATA(hdr));
- std::cout << "Found interface idx=" << msg->ifi_index
- << ", type=" << std::hex << msg->ifi_type;
- if (msg->ifi_type == ARPHRD_LOOPBACK) {
- loopbackFound = true;
- EXPECT_NE(msg->ifi_flags & IFF_LOOPBACK, 0);
- }
+ CheckLinkMsg(hdr, *loopback_link);
+ found = true;
},
false));
- EXPECT_TRUE(loopbackFound);
+ EXPECT_TRUE(found) << "Netlink response does not contain any links.";
}
-TEST(NetlinkRouteTest, MsgHdrMsgUnsuppType) {
+TEST(NetlinkRouteTest, GetLinkByName) {
+ absl::optional<Link> loopback_link =
+ ASSERT_NO_ERRNO_AND_VALUE(FindLoopbackLink());
+ ASSERT_TRUE(loopback_link.has_value());
+
FileDescriptor fd =
ASSERT_NO_ERRNO_AND_VALUE(NetlinkBoundSocket(NETLINK_ROUTE));
struct request {
struct nlmsghdr hdr;
struct ifinfomsg ifm;
+ struct rtattr rtattr;
+ char ifname[IFNAMSIZ];
+ char pad[NLMSG_ALIGNTO + RTA_ALIGNTO];
};
- constexpr uint32_t kSeq = 12345;
+ struct request req = {};
+ req.hdr.nlmsg_type = RTM_GETLINK;
+ req.hdr.nlmsg_flags = NLM_F_REQUEST;
+ req.hdr.nlmsg_seq = kSeq;
+ req.ifm.ifi_family = AF_UNSPEC;
+ req.rtattr.rta_type = IFLA_IFNAME;
+ req.rtattr.rta_len = RTA_LENGTH(loopback_link->name.size() + 1);
+ strncpy(req.ifname, loopback_link->name.c_str(), sizeof(req.ifname));
+ req.hdr.nlmsg_len =
+ NLMSG_LENGTH(sizeof(req.ifm)) + NLMSG_ALIGN(req.rtattr.rta_len);
+
+ bool found = false;
+ ASSERT_NO_ERRNO(NetlinkRequestResponse(
+ fd, &req, sizeof(req),
+ [&](const struct nlmsghdr* hdr) {
+ CheckLinkMsg(hdr, *loopback_link);
+ found = true;
+ },
+ false));
+ EXPECT_TRUE(found) << "Netlink response does not contain any links.";
+}
+
+TEST(NetlinkRouteTest, GetLinkByIndexNotFound) {
+ FileDescriptor fd =
+ ASSERT_NO_ERRNO_AND_VALUE(NetlinkBoundSocket(NETLINK_ROUTE));
+
+ struct request {
+ struct nlmsghdr hdr;
+ struct ifinfomsg ifm;
+ };
+
+ struct request req = {};
+ req.hdr.nlmsg_len = sizeof(req);
+ req.hdr.nlmsg_type = RTM_GETLINK;
+ req.hdr.nlmsg_flags = NLM_F_REQUEST;
+ req.hdr.nlmsg_seq = kSeq;
+ req.ifm.ifi_family = AF_UNSPEC;
+ req.ifm.ifi_index = 1234590;
+
+ EXPECT_THAT(NetlinkRequestAckOrError(fd, kSeq, &req, sizeof(req)),
+ PosixErrorIs(ENODEV, ::testing::_));
+}
+
+TEST(NetlinkRouteTest, GetLinkByNameNotFound) {
+ const std::string name = "nodevice?!";
+
+ FileDescriptor fd =
+ ASSERT_NO_ERRNO_AND_VALUE(NetlinkBoundSocket(NETLINK_ROUTE));
+
+ struct request {
+ struct nlmsghdr hdr;
+ struct ifinfomsg ifm;
+ struct rtattr rtattr;
+ char ifname[IFNAMSIZ];
+ char pad[NLMSG_ALIGNTO + RTA_ALIGNTO];
+ };
+
+ struct request req = {};
+ req.hdr.nlmsg_type = RTM_GETLINK;
+ req.hdr.nlmsg_flags = NLM_F_REQUEST;
+ req.hdr.nlmsg_seq = kSeq;
+ req.ifm.ifi_family = AF_UNSPEC;
+ req.rtattr.rta_type = IFLA_IFNAME;
+ req.rtattr.rta_len = RTA_LENGTH(name.size() + 1);
+ strncpy(req.ifname, name.c_str(), sizeof(req.ifname));
+ req.hdr.nlmsg_len =
+ NLMSG_LENGTH(sizeof(req.ifm)) + NLMSG_ALIGN(req.rtattr.rta_len);
+
+ EXPECT_THAT(NetlinkRequestAckOrError(fd, kSeq, &req, sizeof(req)),
+ PosixErrorIs(ENODEV, ::testing::_));
+}
+
+TEST(NetlinkRouteTest, MsgHdrMsgUnsuppType) {
+ FileDescriptor fd =
+ ASSERT_NO_ERRNO_AND_VALUE(NetlinkBoundSocket(NETLINK_ROUTE));
+
+ struct request {
+ struct nlmsghdr hdr;
+ struct ifinfomsg ifm;
+ };
struct request req = {};
req.hdr.nlmsg_len = sizeof(req);
@@ -175,18 +346,8 @@ TEST(NetlinkRouteTest, MsgHdrMsgUnsuppType) {
req.hdr.nlmsg_seq = kSeq;
req.ifm.ifi_family = AF_UNSPEC;
- ASSERT_NO_ERRNO(NetlinkRequestResponse(
- fd, &req, sizeof(req),
- [&](const struct nlmsghdr* hdr) {
- EXPECT_THAT(hdr->nlmsg_type, Eq(NLMSG_ERROR));
- EXPECT_EQ(hdr->nlmsg_seq, kSeq);
- EXPECT_GE(hdr->nlmsg_len, sizeof(*hdr) + sizeof(struct nlmsgerr));
-
- const struct nlmsgerr* msg =
- reinterpret_cast<const struct nlmsgerr*>(NLMSG_DATA(hdr));
- EXPECT_EQ(msg->error, -EOPNOTSUPP);
- },
- true));
+ EXPECT_THAT(NetlinkRequestAckOrError(fd, kSeq, &req, sizeof(req)),
+ PosixErrorIs(EOPNOTSUPP, ::testing::_));
}
TEST(NetlinkRouteTest, MsgHdrMsgTrunc) {
@@ -198,8 +359,6 @@ TEST(NetlinkRouteTest, MsgHdrMsgTrunc) {
struct ifinfomsg ifm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req = {};
req.hdr.nlmsg_len = sizeof(req);
req.hdr.nlmsg_type = RTM_GETLINK;
@@ -238,8 +397,6 @@ TEST(NetlinkRouteTest, MsgTruncMsgHdrMsgTrunc) {
struct ifinfomsg ifm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req = {};
req.hdr.nlmsg_len = sizeof(req);
req.hdr.nlmsg_type = RTM_GETLINK;
@@ -282,8 +439,6 @@ TEST(NetlinkRouteTest, ControlMessageIgnored) {
struct ifinfomsg ifm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req = {};
// This control message is ignored. We still receive a response for the
@@ -317,8 +472,6 @@ TEST(NetlinkRouteTest, GetAddrDump) {
struct rtgenmsg rgm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req;
req.hdr.nlmsg_len = sizeof(req);
req.hdr.nlmsg_type = RTM_GETADDR;
@@ -367,6 +520,57 @@ TEST(NetlinkRouteTest, LookupAll) {
ASSERT_GT(count, 0);
}
+TEST(NetlinkRouteTest, AddAddr) {
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_ADMIN)));
+
+ absl::optional<Link> loopback_link =
+ ASSERT_NO_ERRNO_AND_VALUE(FindLoopbackLink());
+ ASSERT_TRUE(loopback_link.has_value());
+
+ FileDescriptor fd =
+ ASSERT_NO_ERRNO_AND_VALUE(NetlinkBoundSocket(NETLINK_ROUTE));
+
+ struct request {
+ struct nlmsghdr hdr;
+ struct ifaddrmsg ifa;
+ struct rtattr rtattr;
+ struct in_addr addr;
+ char pad[NLMSG_ALIGNTO + RTA_ALIGNTO];
+ };
+
+ struct request req = {};
+ req.hdr.nlmsg_type = RTM_NEWADDR;
+ req.hdr.nlmsg_seq = kSeq;
+ req.ifa.ifa_family = AF_INET;
+ req.ifa.ifa_prefixlen = 24;
+ req.ifa.ifa_flags = 0;
+ req.ifa.ifa_scope = 0;
+ req.ifa.ifa_index = loopback_link->index;
+ req.rtattr.rta_type = IFA_LOCAL;
+ req.rtattr.rta_len = RTA_LENGTH(sizeof(req.addr));
+ inet_pton(AF_INET, "10.0.0.1", &req.addr);
+ req.hdr.nlmsg_len =
+ NLMSG_LENGTH(sizeof(req.ifa)) + NLMSG_ALIGN(req.rtattr.rta_len);
+
+ // Create should succeed, as no such address in kernel.
+ req.hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
+ EXPECT_NO_ERRNO(
+ NetlinkRequestAckOrError(fd, req.hdr.nlmsg_seq, &req, req.hdr.nlmsg_len));
+
+ // Replace an existing address should succeed.
+ req.hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_REPLACE | NLM_F_ACK;
+ req.hdr.nlmsg_seq++;
+ EXPECT_NO_ERRNO(
+ NetlinkRequestAckOrError(fd, req.hdr.nlmsg_seq, &req, req.hdr.nlmsg_len));
+
+ // Create exclusive should fail, as we created the address above.
+ req.hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
+ req.hdr.nlmsg_seq++;
+ EXPECT_THAT(
+ NetlinkRequestAckOrError(fd, req.hdr.nlmsg_seq, &req, req.hdr.nlmsg_len),
+ PosixErrorIs(EEXIST, ::testing::_));
+}
+
// GetRouteDump tests a RTM_GETROUTE + NLM_F_DUMP request.
TEST(NetlinkRouteTest, GetRouteDump) {
FileDescriptor fd =
@@ -378,8 +582,6 @@ TEST(NetlinkRouteTest, GetRouteDump) {
struct rtmsg rtm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req = {};
req.hdr.nlmsg_len = sizeof(req);
req.hdr.nlmsg_type = RTM_GETROUTE;
@@ -538,8 +740,6 @@ TEST(NetlinkRouteTest, RecvmsgTrunc) {
struct rtgenmsg rgm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req;
req.hdr.nlmsg_len = sizeof(req);
req.hdr.nlmsg_type = RTM_GETADDR;
@@ -615,8 +815,6 @@ TEST(NetlinkRouteTest, RecvmsgTruncPeek) {
struct rtgenmsg rgm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req;
req.hdr.nlmsg_len = sizeof(req);
req.hdr.nlmsg_type = RTM_GETADDR;
@@ -695,8 +893,6 @@ TEST(NetlinkRouteTest, NoPasscredNoCreds) {
struct rtgenmsg rgm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req;
req.hdr.nlmsg_len = sizeof(req);
req.hdr.nlmsg_type = RTM_GETADDR;
@@ -743,8 +939,6 @@ TEST(NetlinkRouteTest, PasscredCreds) {
struct rtgenmsg rgm;
};
- constexpr uint32_t kSeq = 12345;
-
struct request req;
req.hdr.nlmsg_len = sizeof(req);
req.hdr.nlmsg_type = RTM_GETADDR;
diff --git a/test/syscalls/linux/socket_netlink_util.cc b/test/syscalls/linux/socket_netlink_util.cc
index cd2212a1a..952eecfe8 100644
--- a/test/syscalls/linux/socket_netlink_util.cc
+++ b/test/syscalls/linux/socket_netlink_util.cc
@@ -16,6 +16,7 @@
#include <linux/if_arp.h>
#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
#include <sys/socket.h>
#include <vector>
@@ -71,9 +72,10 @@ PosixError NetlinkRequestResponse(
iov.iov_base = buf.data();
iov.iov_len = buf.size();
- // Response is a series of NLM_F_MULTI messages, ending with a NLMSG_DONE
- // message.
+ // If NLM_F_MULTI is set, response is a series of messages that ends with a
+ // NLMSG_DONE message.
int type = -1;
+ int flags = 0;
do {
int len;
RETURN_ERROR_IF_SYSCALL_FAIL(len = RetryEINTR(recvmsg)(fd.get(), &msg, 0));
@@ -89,6 +91,7 @@ PosixError NetlinkRequestResponse(
for (struct nlmsghdr* hdr = reinterpret_cast<struct nlmsghdr*>(buf.data());
NLMSG_OK(hdr, len); hdr = NLMSG_NEXT(hdr, len)) {
fn(hdr);
+ flags = hdr->nlmsg_flags;
type = hdr->nlmsg_type;
// Done should include an integer payload for dump_done_errno.
// See net/netlink/af_netlink.c:netlink_dump
@@ -98,11 +101,11 @@ PosixError NetlinkRequestResponse(
EXPECT_GE(hdr->nlmsg_len, NLMSG_LENGTH(sizeof(int)));
}
}
- } while (type != NLMSG_DONE && type != NLMSG_ERROR);
+ } while ((flags & NLM_F_MULTI) && type != NLMSG_DONE && type != NLMSG_ERROR);
if (expect_nlmsgerr) {
EXPECT_EQ(type, NLMSG_ERROR);
- } else {
+ } else if (flags & NLM_F_MULTI) {
EXPECT_EQ(type, NLMSG_DONE);
}
return NoError();
@@ -146,5 +149,39 @@ PosixError NetlinkRequestResponseSingle(
return NoError();
}
+PosixError NetlinkRequestAckOrError(const FileDescriptor& fd, uint32_t seq,
+ void* request, size_t len) {
+ // Dummy negative number for no error message received.
+ // We won't get a negative error number so there will be no confusion.
+ int err = -42;
+ RETURN_IF_ERRNO(NetlinkRequestResponse(
+ fd, request, len,
+ [&](const struct nlmsghdr* hdr) {
+ EXPECT_EQ(NLMSG_ERROR, hdr->nlmsg_type);
+ EXPECT_EQ(hdr->nlmsg_seq, seq);
+ EXPECT_GE(hdr->nlmsg_len, sizeof(*hdr) + sizeof(struct nlmsgerr));
+
+ const struct nlmsgerr* msg =
+ reinterpret_cast<const struct nlmsgerr*>(NLMSG_DATA(hdr));
+ err = -msg->error;
+ },
+ true));
+ return PosixError(err);
+}
+
+const struct rtattr* FindRtAttr(const struct nlmsghdr* hdr,
+ const struct ifinfomsg* msg, int16_t attr) {
+ const int ifi_space = NLMSG_SPACE(sizeof(*msg));
+ int attrlen = hdr->nlmsg_len - ifi_space;
+ const struct rtattr* rta = reinterpret_cast<const struct rtattr*>(
+ reinterpret_cast<const uint8_t*>(hdr) + NLMSG_ALIGN(ifi_space));
+ for (; RTA_OK(rta, attrlen); rta = RTA_NEXT(rta, attrlen)) {
+ if (rta->rta_type == attr) {
+ return rta;
+ }
+ }
+ return nullptr;
+}
+
} // namespace testing
} // namespace gvisor
diff --git a/test/syscalls/linux/socket_netlink_util.h b/test/syscalls/linux/socket_netlink_util.h
index 3678c0599..e13ead406 100644
--- a/test/syscalls/linux/socket_netlink_util.h
+++ b/test/syscalls/linux/socket_netlink_util.h
@@ -19,6 +19,7 @@
// socket.h has to be included before if_arp.h.
#include <linux/if_arp.h>
#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
#include "test/util/file_descriptor.h"
#include "test/util/posix_error.h"
@@ -47,6 +48,14 @@ PosixError NetlinkRequestResponseSingle(
const FileDescriptor& fd, void* request, size_t len,
const std::function<void(const struct nlmsghdr* hdr)>& fn);
+// Send the passed request then expect and return an ack or error.
+PosixError NetlinkRequestAckOrError(const FileDescriptor& fd, uint32_t seq,
+ void* request, size_t len);
+
+// Find rtnetlink attribute in message.
+const struct rtattr* FindRtAttr(const struct nlmsghdr* hdr,
+ const struct ifinfomsg* msg, int16_t attr);
+
} // namespace testing
} // namespace gvisor
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 03:26:38 +0000