From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- net/mptcp/token_test.c | 151 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 151 insertions(+) create mode 100644 net/mptcp/token_test.c (limited to 'net/mptcp/token_test.c') diff --git a/net/mptcp/token_test.c b/net/mptcp/token_test.c new file mode 100644 index 000000000..4fc39fa2e --- /dev/null +++ b/net/mptcp/token_test.c @@ -0,0 +1,151 @@ +// SPDX-License-Identifier: GPL-2.0 +#include + +#include "protocol.h" + +static struct mptcp_subflow_request_sock *build_req_sock(struct kunit *test) +{ + struct mptcp_subflow_request_sock *req; + + req = kunit_kzalloc(test, sizeof(struct mptcp_subflow_request_sock), + GFP_USER); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, req); + mptcp_token_init_request((struct request_sock *)req); + sock_net_set((struct sock *)req, &init_net); + return req; +} + +static void mptcp_token_test_req_basic(struct kunit *test) +{ + struct mptcp_subflow_request_sock *req = build_req_sock(test); + struct mptcp_sock *null_msk = NULL; + + KUNIT_ASSERT_EQ(test, 0, + mptcp_token_new_request((struct request_sock *)req)); + KUNIT_EXPECT_NE(test, 0, (int)req->token); + KUNIT_EXPECT_PTR_EQ(test, null_msk, mptcp_token_get_sock(&init_net, req->token)); + + /* cleanup */ + mptcp_token_destroy_request((struct request_sock *)req); +} + +static struct inet_connection_sock *build_icsk(struct kunit *test) +{ + struct inet_connection_sock *icsk; + + icsk = kunit_kzalloc(test, sizeof(struct inet_connection_sock), + GFP_USER); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, icsk); + return icsk; +} + +static struct mptcp_subflow_context *build_ctx(struct kunit *test) +{ + struct mptcp_subflow_context *ctx; + + ctx = kunit_kzalloc(test, sizeof(struct mptcp_subflow_context), + GFP_USER); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, ctx); + return ctx; +} + +static struct mptcp_sock *build_msk(struct kunit *test) +{ + struct mptcp_sock *msk; + struct sock *sk; + + msk = kunit_kzalloc(test, sizeof(struct mptcp_sock), GFP_USER); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, msk); + refcount_set(&((struct sock *)msk)->sk_refcnt, 1); + sock_net_set((struct sock *)msk, &init_net); + + sk = (struct sock *)msk; + + /* be sure the token helpers can dereference sk->sk_prot */ + sk->sk_prot = &tcp_prot; + sk->sk_protocol = IPPROTO_MPTCP; + + return msk; +} + +static void mptcp_token_test_msk_basic(struct kunit *test) +{ + struct inet_connection_sock *icsk = build_icsk(test); + struct mptcp_subflow_context *ctx = build_ctx(test); + struct mptcp_sock *msk = build_msk(test); + struct mptcp_sock *null_msk = NULL; + struct sock *sk; + + rcu_assign_pointer(icsk->icsk_ulp_data, ctx); + ctx->conn = (struct sock *)msk; + sk = (struct sock *)msk; + + KUNIT_ASSERT_EQ(test, 0, + mptcp_token_new_connect((struct sock *)icsk)); + KUNIT_EXPECT_NE(test, 0, (int)ctx->token); + KUNIT_EXPECT_EQ(test, ctx->token, msk->token); + KUNIT_EXPECT_PTR_EQ(test, msk, mptcp_token_get_sock(&init_net, ctx->token)); + KUNIT_EXPECT_EQ(test, 2, (int)refcount_read(&sk->sk_refcnt)); + + mptcp_token_destroy(msk); + KUNIT_EXPECT_PTR_EQ(test, null_msk, mptcp_token_get_sock(&init_net, ctx->token)); +} + +static void mptcp_token_test_accept(struct kunit *test) +{ + struct mptcp_subflow_request_sock *req = build_req_sock(test); + struct mptcp_sock *msk = build_msk(test); + + KUNIT_ASSERT_EQ(test, 0, + mptcp_token_new_request((struct request_sock *)req)); + msk->token = req->token; + mptcp_token_accept(req, msk); + KUNIT_EXPECT_PTR_EQ(test, msk, mptcp_token_get_sock(&init_net, msk->token)); + + /* this is now a no-op */ + mptcp_token_destroy_request((struct request_sock *)req); + KUNIT_EXPECT_PTR_EQ(test, msk, mptcp_token_get_sock(&init_net, msk->token)); + + /* cleanup */ + mptcp_token_destroy(msk); +} + +static void mptcp_token_test_destroyed(struct kunit *test) +{ + struct mptcp_subflow_request_sock *req = build_req_sock(test); + struct mptcp_sock *msk = build_msk(test); + struct mptcp_sock *null_msk = NULL; + struct sock *sk; + + sk = (struct sock *)msk; + + KUNIT_ASSERT_EQ(test, 0, + mptcp_token_new_request((struct request_sock *)req)); + msk->token = req->token; + mptcp_token_accept(req, msk); + + /* simulate race on removal */ + refcount_set(&sk->sk_refcnt, 0); + KUNIT_EXPECT_PTR_EQ(test, null_msk, mptcp_token_get_sock(&init_net, msk->token)); + + /* cleanup */ + mptcp_token_destroy(msk); +} + +static struct kunit_case mptcp_token_test_cases[] = { + KUNIT_CASE(mptcp_token_test_req_basic), + KUNIT_CASE(mptcp_token_test_msk_basic), + KUNIT_CASE(mptcp_token_test_accept), + KUNIT_CASE(mptcp_token_test_destroyed), + {} +}; + +static struct kunit_suite mptcp_token_suite = { + .name = "mptcp-token", + .test_cases = mptcp_token_test_cases, +}; + +kunit_test_suite(mptcp_token_suite); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("KUnit tests for MPTCP Token"); -- cgit v1.3.1