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path: root/emulators/virtualbox-ose-71/files/patch-src-VBox-Additions-common-VBoxGuest-VBoxGuest-freebsd.c
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Diffstat (limited to 'emulators/virtualbox-ose-71/files/patch-src-VBox-Additions-common-VBoxGuest-VBoxGuest-freebsd.c')
-rw-r--r--emulators/virtualbox-ose-71/files/patch-src-VBox-Additions-common-VBoxGuest-VBoxGuest-freebsd.c284
1 files changed, 284 insertions, 0 deletions
diff --git a/emulators/virtualbox-ose-71/files/patch-src-VBox-Additions-common-VBoxGuest-VBoxGuest-freebsd.c b/emulators/virtualbox-ose-71/files/patch-src-VBox-Additions-common-VBoxGuest-VBoxGuest-freebsd.c
new file mode 100644
index 000000000000..e790f372f95f
--- /dev/null
+++ b/emulators/virtualbox-ose-71/files/patch-src-VBox-Additions-common-VBoxGuest-VBoxGuest-freebsd.c
@@ -0,0 +1,284 @@
+--- src/VBox/Additions/common/VBoxGuest/VBoxGuest-freebsd.c.orig 2022-10-06 19:03:06.000000000 +0200
++++ src/VBox/Additions/common/VBoxGuest/VBoxGuest-freebsd.c 2024-12-26 15:28:38.066230000 +0100
+@@ -55,6 +55,7 @@
+ #include <sys/uio.h>
+ #include <sys/bus.h>
+ #include <sys/poll.h>
++#include <sys/proc.h>
+ #include <sys/selinfo.h>
+ #include <sys/queue.h>
+ #include <sys/lock.h>
+@@ -71,6 +72,7 @@
+ #include <VBox/version.h>
+ #include <VBox/log.h>
+ #include <iprt/assert.h>
++#include <iprt/err.h>
+ #include <iprt/initterm.h>
+ #include <iprt/process.h>
+ #include <iprt/string.h>
+@@ -112,8 +114,6 @@
+ struct resource *pIrqRes;
+ /** Pointer to the IRQ handler. */
+ void *pfnIrqHandler;
+- /** VMMDev version */
+- uint32_t u32Version;
+ };
+
+
+@@ -123,8 +123,7 @@
+ /*
+ * Character device file handlers.
+ */
+-static d_fdopen_t vgdrvFreeBSDOpen;
+-static d_close_t vgdrvFreeBSDClose;
++static d_open_t vgdrvFreeBSDOpen;
+ static d_ioctl_t vgdrvFreeBSDIOCtl;
+ static int vgdrvFreeBSDIOCtlSlow(PVBOXGUESTSESSION pSession, u_long ulCmd, caddr_t pvData, struct thread *pTd);
+ static d_write_t vgdrvFreeBSDWrite;
+@@ -155,8 +154,7 @@
+ {
+ .d_version = D_VERSION,
+ .d_flags = D_TRACKCLOSE | D_NEEDMINOR,
+- .d_fdopen = vgdrvFreeBSDOpen,
+- .d_close = vgdrvFreeBSDClose,
++ .d_open = vgdrvFreeBSDOpen,
+ .d_ioctl = vgdrvFreeBSDIOCtl,
+ .d_read = vgdrvFreeBSDRead,
+ .d_write = vgdrvFreeBSDWrite,
+@@ -164,81 +162,28 @@
+ .d_name = "vboxguest"
+ };
+
++/** Device structure. */
++static struct cdev *g_pDev;
++
+ /** Device extention & session data association structure. */
+ static VBOXGUESTDEVEXT g_DevExt;
+
+-/** List of cloned device. Managed by the kernel. */
+-static struct clonedevs *g_pvgdrvFreeBSDClones;
+-/** The dev_clone event handler tag. */
+-static eventhandler_tag g_vgdrvFreeBSDEHTag;
+ /** Reference counter */
+ static volatile uint32_t cUsers;
+ /** selinfo structure used for polling. */
+ static struct selinfo g_SelInfo;
+
+-/**
+- * DEVFS event handler.
+- */
+-static void vgdrvFreeBSDClone(void *pvArg, struct ucred *pCred, char *pszName, int cchName, struct cdev **ppDev)
++static void vgdrvFreeBSDDtr(void *pSession)
+ {
+- int iUnit;
+- int rc;
+-
+- Log(("vgdrvFreeBSDClone: pszName=%s ppDev=%p\n", pszName, ppDev));
+-
+- /*
+- * One device node per user, si_drv1 points to the session.
+- * /dev/vboxguest<N> where N = {0...255}.
+- */
+- if (!ppDev)
+- return;
+- if (strcmp(pszName, "vboxguest") == 0)
+- iUnit = -1;
+- else if (dev_stdclone(pszName, NULL, "vboxguest", &iUnit) != 1)
+- return;
+- if (iUnit >= 256)
+- {
+- Log(("vgdrvFreeBSDClone: iUnit=%d >= 256 - rejected\n", iUnit));
+- return;
+- }
+-
+- Log(("vgdrvFreeBSDClone: pszName=%s iUnit=%d\n", pszName, iUnit));
+-
+- rc = clone_create(&g_pvgdrvFreeBSDClones, &g_vgdrvFreeBSDChrDevSW, &iUnit, ppDev, 0);
+- Log(("vgdrvFreeBSDClone: clone_create -> %d; iUnit=%d\n", rc, iUnit));
+- if (rc)
+- {
+- *ppDev = make_dev(&g_vgdrvFreeBSDChrDevSW,
+- iUnit,
+- UID_ROOT,
+- GID_WHEEL,
+- 0664,
+- "vboxguest%d", iUnit);
+- if (*ppDev)
+- {
+- dev_ref(*ppDev);
+- (*ppDev)->si_flags |= SI_CHEAPCLONE;
+- Log(("vgdrvFreeBSDClone: Created *ppDev=%p iUnit=%d si_drv1=%p si_drv2=%p\n",
+- *ppDev, iUnit, (*ppDev)->si_drv1, (*ppDev)->si_drv2));
+- (*ppDev)->si_drv1 = (*ppDev)->si_drv2 = NULL;
+- }
+- else
+- Log(("vgdrvFreeBSDClone: make_dev iUnit=%d failed\n", iUnit));
+- }
+- else
+- Log(("vgdrvFreeBSDClone: Existing *ppDev=%p iUnit=%d si_drv1=%p si_drv2=%p\n",
+- *ppDev, iUnit, (*ppDev)->si_drv1, (*ppDev)->si_drv2));
++ VGDrvCommonCloseSession(&g_DevExt, pSession);
++ ASMAtomicDecU32(&cUsers);
+ }
+
+ /**
+ * File open handler
+ *
+ */
+-#if __FreeBSD_version >= 700000
+-static int vgdrvFreeBSDOpen(struct cdev *pDev, int fOpen, struct thread *pTd, struct file *pFd)
+-#else
+-static int vgdrvFreeBSDOpen(struct cdev *pDev, int fOpen, struct thread *pTd)
+-#endif
++static int vgdrvFreeBSDOpen(struct cdev *pDev, int fOpen, int DevType, struct thread *pTd)
+ {
+ int rc;
+ PVBOXGUESTSESSION pSession;
+@@ -250,12 +195,6 @@
+ LogFlow(("vgdrvFreeBSDOpen:\n"));
+
+ /*
+- * Try grab it (we don't grab the giant, remember).
+- */
+- if (!ASMAtomicCmpXchgPtr(&pDev->si_drv1, (void *)0x42, NULL))
+- return EBUSY;
+-
+- /*
+ * Create a new session.
+ */
+ fRequestor = VMMDEV_REQUESTOR_USERMODE | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN;
+@@ -272,47 +211,20 @@
+ rc = VGDrvCommonCreateUserSession(&g_DevExt, fRequestor, &pSession);
+ if (RT_SUCCESS(rc))
+ {
+- if (ASMAtomicCmpXchgPtr(&pDev->si_drv1, pSession, (void *)0x42))
+- {
+- Log(("vgdrvFreeBSDOpen: success - g_DevExt=%p pSession=%p rc=%d pid=%d\n", &g_DevExt, pSession, rc, (int)RTProcSelf()));
++ Log(("vgdrvFreeBSDOpen: success - g_DevExt=%p pSession=%p rc=%d pid=%d\n", &g_DevExt, pSession, rc, (int)RTProcSelf()));
++ rc = devfs_set_cdevpriv(pSession, vgdrvFreeBSDDtr);
++ if (rc)
++ VGDrvCommonCloseSession(&g_DevExt, pSession);
++ else
+ ASMAtomicIncU32(&cUsers);
+- return 0;
+- }
+-
+- VGDrvCommonCloseSession(&g_DevExt, pSession);
++ return rc;
+ }
+
+ LogRel(("vgdrvFreeBSDOpen: failed. rc=%d\n", rc));
+ return RTErrConvertToErrno(rc);
+ }
+
+-/**
+- * File close handler
+- *
+- */
+-static int vgdrvFreeBSDClose(struct cdev *pDev, int fFile, int DevType, struct thread *pTd)
+-{
+- PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pDev->si_drv1;
+- Log(("vgdrvFreeBSDClose: fFile=%#x pSession=%p\n", fFile, pSession));
+
+- /*
+- * Close the session if it's still hanging on to the device...
+- */
+- if (RT_VALID_PTR(pSession))
+- {
+- VGDrvCommonCloseSession(&g_DevExt, pSession);
+- if (!ASMAtomicCmpXchgPtr(&pDev->si_drv1, NULL, pSession))
+- Log(("vgdrvFreeBSDClose: si_drv1=%p expected %p!\n", pDev->si_drv1, pSession));
+- ASMAtomicDecU32(&cUsers);
+- /* Don't use destroy_dev here because it may sleep resulting in a hanging user process. */
+- destroy_dev_sched(pDev);
+- }
+- else
+- Log(("vgdrvFreeBSDClose: si_drv1=%p!\n", pSession));
+- return 0;
+-}
+-
+-
+ /**
+ * I/O control request.
+ *
+@@ -326,8 +238,12 @@
+ static int vgdrvFreeBSDIOCtl(struct cdev *pDev, u_long ulCmd, caddr_t pvData, int fFile, struct thread *pTd)
+ {
+ PVBOXGUESTSESSION pSession;
+- devfs_get_cdevpriv((void **)&pSession);
++ int rc;
+
++ rc = devfs_get_cdevpriv((void **)&pSession);
++ if (rc)
++ return rc;
++
+ /*
+ * Deal with the fast ioctl path first.
+ */
+@@ -526,8 +442,10 @@
+
+ LogFlow(("vgdrvFreeBSDPoll: fEvents=%d\n", fEvents));
+
+- PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pDev->si_drv1;
+- if (RT_UNLIKELY(!RT_VALID_PTR(pSession))) {
++
++ rc = devfs_get_cdevpriv((void **)&pSession);
++ if (rc)
++ {
+ Log(("vgdrvFreeBSDPoll: no state data for %s\n", devtoname(pDev)));
+ return (fEvents & (POLLHUP|POLLIN|POLLRDNORM|POLLOUT|POLLWRNORM));
+ }
+@@ -568,11 +486,8 @@
+ /*
+ * Reverse what we did in vgdrvFreeBSDAttach.
+ */
+- if (g_vgdrvFreeBSDEHTag != NULL)
+- EVENTHANDLER_DEREGISTER(dev_clone, g_vgdrvFreeBSDEHTag);
++ destroy_dev(g_pDev);
+
+- clone_cleanup(&g_pvgdrvFreeBSDClones);
+-
+ vgdrvFreeBSDRemoveIRQ(pDevice, pState);
+
+ if (pState->pVMMDevMemRes)
+@@ -737,18 +652,21 @@
+ VGDrvCommonProcessOptionsFromHost(&g_DevExt);
+
+ /*
+- * Configure device cloning.
++ * Configure device.
+ */
+- clone_setup(&g_pvgdrvFreeBSDClones);
+- g_vgdrvFreeBSDEHTag = EVENTHANDLER_REGISTER(dev_clone, vgdrvFreeBSDClone, 0, 1000);
+- if (g_vgdrvFreeBSDEHTag)
++ g_pDev = make_dev(&g_vgdrvFreeBSDChrDevSW,
++ 0,
++ UID_ROOT,
++ GID_WHEEL,
++ 0664,
++ "vboxguest");
++ if (g_pDev)
+ {
+ printf(DEVICE_NAME ": loaded successfully\n");
+ return 0;
+ }
+
+- printf(DEVICE_NAME ": EVENTHANDLER_REGISTER(dev_clone,,,) failed\n");
+- clone_cleanup(&g_pvgdrvFreeBSDClones);
++ printf(DEVICE_NAME ": make_dev failed\n");
+ vgdrvFreeBSDRemoveIRQ(pDevice, pState);
+ }
+ else
+@@ -792,8 +710,12 @@
+ sizeof(struct VBoxGuestDeviceState),
+ };
+
++#if __FreeBSD_version >= 1400058
++DRIVER_MODULE(vboxguest, pci, vgdrvFreeBSDDriver, 0, 0);
++#else
+ static devclass_t vgdrvFreeBSDClass;
+
+ DRIVER_MODULE(vboxguest, pci, vgdrvFreeBSDDriver, vgdrvFreeBSDClass, 0, 0);
++#endif
+ MODULE_VERSION(vboxguest, 1);
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-15 05:33:22 +0000