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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /drivers/net/netdevsim/macsec.c
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
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 ...
Diffstat (limited to 'drivers/net/netdevsim/macsec.c')
-rw-r--r--drivers/net/netdevsim/macsec.c351
1 files changed, 351 insertions, 0 deletions
diff --git a/drivers/net/netdevsim/macsec.c b/drivers/net/netdevsim/macsec.c
new file mode 100644
index 000000000..bdc8020d5
--- /dev/null
+++ b/drivers/net/netdevsim/macsec.c
@@ -0,0 +1,351 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <net/macsec.h>
+#include "netdevsim.h"
+
+static int nsim_macsec_find_secy(struct netdevsim *ns, sci_t sci)
+{
+ int i;
+
+ for (i = 0; i < NSIM_MACSEC_MAX_SECY_COUNT; i++) {
+ if (ns->macsec.nsim_secy[i].sci == sci)
+ return i;
+ }
+
+ return -1;
+}
+
+static int nsim_macsec_find_rxsc(struct nsim_secy *ns_secy, sci_t sci)
+{
+ int i;
+
+ for (i = 0; i < NSIM_MACSEC_MAX_RXSC_COUNT; i++) {
+ if (ns_secy->nsim_rxsc[i].sci == sci)
+ return i;
+ }
+
+ return -1;
+}
+
+static int nsim_macsec_add_secy(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ int idx;
+
+ if (ns->macsec.nsim_secy_count == NSIM_MACSEC_MAX_SECY_COUNT)
+ return -ENOSPC;
+
+ for (idx = 0; idx < NSIM_MACSEC_MAX_SECY_COUNT; idx++) {
+ if (!ns->macsec.nsim_secy[idx].used)
+ break;
+ }
+
+ if (idx == NSIM_MACSEC_MAX_SECY_COUNT) {
+ netdev_err(ctx->netdev, "%s: nsim_secy_count not full but all SecYs used\n",
+ __func__);
+ return -ENOSPC;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: adding new secy with sci %016llx at index %d\n",
+ __func__, sci_to_cpu(ctx->secy->sci), idx);
+ ns->macsec.nsim_secy[idx].used = true;
+ ns->macsec.nsim_secy[idx].nsim_rxsc_count = 0;
+ ns->macsec.nsim_secy[idx].sci = ctx->secy->sci;
+ ns->macsec.nsim_secy_count++;
+
+ return 0;
+}
+
+static int nsim_macsec_upd_secy(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: updating secy with sci %016llx at index %d\n",
+ __func__, sci_to_cpu(ctx->secy->sci), idx);
+
+ return 0;
+}
+
+static int nsim_macsec_del_secy(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: removing SecY with SCI %016llx at index %d\n",
+ __func__, sci_to_cpu(ctx->secy->sci), idx);
+
+ ns->macsec.nsim_secy[idx].used = false;
+ memset(&ns->macsec.nsim_secy[idx], 0, sizeof(ns->macsec.nsim_secy[idx]));
+ ns->macsec.nsim_secy_count--;
+
+ return 0;
+}
+
+static int nsim_macsec_add_rxsc(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ struct nsim_secy *secy;
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+ secy = &ns->macsec.nsim_secy[idx];
+
+ if (secy->nsim_rxsc_count == NSIM_MACSEC_MAX_RXSC_COUNT)
+ return -ENOSPC;
+
+ for (idx = 0; idx < NSIM_MACSEC_MAX_RXSC_COUNT; idx++) {
+ if (!secy->nsim_rxsc[idx].used)
+ break;
+ }
+
+ if (idx == NSIM_MACSEC_MAX_RXSC_COUNT)
+ netdev_err(ctx->netdev, "%s: nsim_rxsc_count not full but all RXSCs used\n",
+ __func__);
+
+ netdev_dbg(ctx->netdev, "%s: adding new rxsc with sci %016llx at index %d\n",
+ __func__, sci_to_cpu(ctx->rx_sc->sci), idx);
+ secy->nsim_rxsc[idx].used = true;
+ secy->nsim_rxsc[idx].sci = ctx->rx_sc->sci;
+ secy->nsim_rxsc_count++;
+
+ return 0;
+}
+
+static int nsim_macsec_upd_rxsc(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ struct nsim_secy *secy;
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+ secy = &ns->macsec.nsim_secy[idx];
+
+ idx = nsim_macsec_find_rxsc(secy, ctx->rx_sc->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in RXSC table\n",
+ __func__, sci_to_cpu(ctx->rx_sc->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: updating RXSC with sci %016llx at index %d\n",
+ __func__, sci_to_cpu(ctx->rx_sc->sci), idx);
+
+ return 0;
+}
+
+static int nsim_macsec_del_rxsc(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ struct nsim_secy *secy;
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+ secy = &ns->macsec.nsim_secy[idx];
+
+ idx = nsim_macsec_find_rxsc(secy, ctx->rx_sc->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in RXSC table\n",
+ __func__, sci_to_cpu(ctx->rx_sc->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: removing RXSC with sci %016llx at index %d\n",
+ __func__, sci_to_cpu(ctx->rx_sc->sci), idx);
+
+ secy->nsim_rxsc[idx].used = false;
+ memset(&secy->nsim_rxsc[idx], 0, sizeof(secy->nsim_rxsc[idx]));
+ secy->nsim_rxsc_count--;
+
+ return 0;
+}
+
+static int nsim_macsec_add_rxsa(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ struct nsim_secy *secy;
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+ secy = &ns->macsec.nsim_secy[idx];
+
+ idx = nsim_macsec_find_rxsc(secy, ctx->sa.rx_sa->sc->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in RXSC table\n",
+ __func__, sci_to_cpu(ctx->sa.rx_sa->sc->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: RXSC with sci %016llx, AN %u\n",
+ __func__, sci_to_cpu(ctx->sa.rx_sa->sc->sci), ctx->sa.assoc_num);
+
+ return 0;
+}
+
+static int nsim_macsec_upd_rxsa(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ struct nsim_secy *secy;
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+ secy = &ns->macsec.nsim_secy[idx];
+
+ idx = nsim_macsec_find_rxsc(secy, ctx->sa.rx_sa->sc->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in RXSC table\n",
+ __func__, sci_to_cpu(ctx->sa.rx_sa->sc->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: RXSC with sci %016llx, AN %u\n",
+ __func__, sci_to_cpu(ctx->sa.rx_sa->sc->sci), ctx->sa.assoc_num);
+
+ return 0;
+}
+
+static int nsim_macsec_del_rxsa(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ struct nsim_secy *secy;
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+ secy = &ns->macsec.nsim_secy[idx];
+
+ idx = nsim_macsec_find_rxsc(secy, ctx->sa.rx_sa->sc->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in RXSC table\n",
+ __func__, sci_to_cpu(ctx->sa.rx_sa->sc->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: RXSC with sci %016llx, AN %u\n",
+ __func__, sci_to_cpu(ctx->sa.rx_sa->sc->sci), ctx->sa.assoc_num);
+
+ return 0;
+}
+
+static int nsim_macsec_add_txsa(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: SECY with sci %016llx, AN %u\n",
+ __func__, sci_to_cpu(ctx->secy->sci), ctx->sa.assoc_num);
+
+ return 0;
+}
+
+static int nsim_macsec_upd_txsa(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: SECY with sci %016llx, AN %u\n",
+ __func__, sci_to_cpu(ctx->secy->sci), ctx->sa.assoc_num);
+
+ return 0;
+}
+
+static int nsim_macsec_del_txsa(struct macsec_context *ctx)
+{
+ struct netdevsim *ns = netdev_priv(ctx->netdev);
+ int idx;
+
+ idx = nsim_macsec_find_secy(ns, ctx->secy->sci);
+ if (idx < 0) {
+ netdev_err(ctx->netdev, "%s: sci %016llx not found in secy table\n",
+ __func__, sci_to_cpu(ctx->secy->sci));
+ return -ENOENT;
+ }
+
+ netdev_dbg(ctx->netdev, "%s: SECY with sci %016llx, AN %u\n",
+ __func__, sci_to_cpu(ctx->secy->sci), ctx->sa.assoc_num);
+
+ return 0;
+}
+
+static const struct macsec_ops nsim_macsec_ops = {
+ .mdo_add_secy = nsim_macsec_add_secy,
+ .mdo_upd_secy = nsim_macsec_upd_secy,
+ .mdo_del_secy = nsim_macsec_del_secy,
+ .mdo_add_rxsc = nsim_macsec_add_rxsc,
+ .mdo_upd_rxsc = nsim_macsec_upd_rxsc,
+ .mdo_del_rxsc = nsim_macsec_del_rxsc,
+ .mdo_add_rxsa = nsim_macsec_add_rxsa,
+ .mdo_upd_rxsa = nsim_macsec_upd_rxsa,
+ .mdo_del_rxsa = nsim_macsec_del_rxsa,
+ .mdo_add_txsa = nsim_macsec_add_txsa,
+ .mdo_upd_txsa = nsim_macsec_upd_txsa,
+ .mdo_del_txsa = nsim_macsec_del_txsa,
+};
+
+void nsim_macsec_init(struct netdevsim *ns)
+{
+ ns->netdev->macsec_ops = &nsim_macsec_ops;
+ ns->netdev->features |= NETIF_F_HW_MACSEC;
+ memset(&ns->macsec, 0, sizeof(ns->macsec));
+}
+
+void nsim_macsec_teardown(struct netdevsim *ns)
+{
+}