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|
Index: xf86drm.c
--- xf86drm.c.orig
+++ xf86drm.c
@@ -101,6 +101,10 @@
#define DRM_MAJOR 226 /* Linux */
#endif
+#ifdef __OpenBSD__
+#define X_PRIVSEP
+#endif
+
#if defined(__OpenBSD__) || defined(__DragonFly__)
struct drm_pciinfo {
uint16_t domain;
@@ -732,7 +736,7 @@ static int drmMatchBusID(const char *id1, const char *
* If any other failure happened then it will output error message using
* drmMsg() call.
*/
-#if !UDEV
+#if !UDEV && !defined(__OpenBSD__)
static int chown_check_return(const char *path, uid_t owner, gid_t group)
{
int rv;
@@ -763,6 +767,18 @@ static const char *drmGetDeviceName(int type)
return NULL;
}
+#ifdef X_PRIVSEP
+static int
+_priv_open_device(const char *path)
+{
+ drmMsg("_priv_open_device\n");
+ return open(path, O_RDWR, 0);
+}
+
+drm_public int priv_open_device(const char *)
+ __attribute__((weak, alias ("_priv_open_device")));
+#endif
+
/**
* Open the DRM device, creating it if necessary.
*
@@ -784,7 +800,7 @@ static int drmOpenDevice(dev_t dev, int minor, int typ
int fd;
mode_t devmode = DRM_DEV_MODE, serv_mode;
gid_t serv_group;
-#if !UDEV
+#if !UDEV && !defined(__OpenBSD__)
int isroot = !geteuid();
uid_t user = DRM_DEV_UID;
gid_t group = DRM_DEV_GID;
@@ -802,6 +818,7 @@ static int drmOpenDevice(dev_t dev, int minor, int typ
devmode &= ~(S_IXUSR|S_IXGRP|S_IXOTH);
}
+#ifndef __OpenBSD__
#if !UDEV
if (stat(DRM_DIR_NAME, &st)) {
if (!isroot)
@@ -848,14 +865,19 @@ wait_for_udev:
}
}
#endif
+#endif /* __OpenBSD__ */
+#ifndef X_PRIVSEP
fd = open(buf, O_RDWR | O_CLOEXEC);
+#else
+ fd = priv_open_device(buf);
+#endif
drmMsg("drmOpenDevice: open result is %d, (%s)\n",
fd, fd < 0 ? strerror(errno) : "OK");
if (fd >= 0)
return fd;
-#if !UDEV
+#if !UDEV && !defined(__OpenBSD__)
/* Check if the device node is not what we expect it to be, and recreate it
* and try again if so.
*/
@@ -907,8 +929,13 @@ static int drmOpenMinor(int minor, int create, int typ
return -EINVAL;
sprintf(buf, dev_name, DRM_DIR_NAME, minor);
- if ((fd = open(buf, O_RDWR | O_CLOEXEC)) >= 0)
- return fd;
+#ifndef X_PRIVSEP
+ fd = open(buf, O_RDWR | O_CLOEXEC);
+#else
+ fd = priv_open_device(buf);
+#endif
+ if (fd >= 0)
+ return fd;
return -errno;
}
@@ -3438,7 +3465,11 @@ static char *drmGetMinorNameForFD(int fd, int type)
const char *dev_name = drmGetDeviceName(type);
unsigned int maj, min;
int n;
+ int base = drmGetMinorBase(type);
+ if (base < 0)
+ return NULL;
+
if (fstat(fd, &sbuf))
return NULL;
@@ -3451,7 +3482,7 @@ static char *drmGetMinorNameForFD(int fd, int type)
if (!dev_name)
return NULL;
- n = snprintf(buf, sizeof(buf), dev_name, DRM_DIR_NAME, min);
+ n = snprintf(buf, sizeof(buf), dev_name, DRM_DIR_NAME, base + min);
if (n == -1 || n >= sizeof(buf))
return NULL;
@@ -4514,53 +4545,6 @@ drm_device_has_rdev(drmDevicePtr device, dev_t find_rd
*/
drm_public int drmGetDeviceFromDevId(dev_t find_rdev, uint32_t flags, drmDevicePtr *device)
{
-#ifdef __OpenBSD__
- /*
- * DRI device nodes on OpenBSD are not in their own directory, they reside
- * in /dev along with a large number of statically generated /dev nodes.
- * Avoid stat'ing all of /dev needlessly by implementing this custom path.
- */
- drmDevicePtr d;
- char node[PATH_MAX + 1];
- const char *dev_name;
- int node_type, subsystem_type;
- int maj, min, n, ret;
-
- if (device == NULL)
- return -EINVAL;
-
- maj = major(find_rdev);
- min = minor(find_rdev);
-
- if (!drmNodeIsDRM(maj, min))
- return -EINVAL;
-
- node_type = drmGetMinorType(maj, min);
- if (node_type == -1)
- return -ENODEV;
-
- dev_name = drmGetDeviceName(node_type);
- if (!dev_name)
- return -EINVAL;
-
- n = snprintf(node, PATH_MAX, dev_name, DRM_DIR_NAME, min);
- if (n == -1 || n >= PATH_MAX)
- return -errno;
- if (stat(node, &sbuf))
- return -EINVAL;
-
- subsystem_type = drmParseSubsystemType(maj, min);
- if (subsystem_type != DRM_BUS_PCI)
- return -ENODEV;
-
- ret = drmProcessPciDevice(&d, node, node_type, maj, min, true, flags);
- if (ret)
- return ret;
-
- *device = d;
-
- return 0;
-#else
drmDevicePtr local_devices[MAX_DRM_NODES];
drmDevicePtr d;
DIR *sysdir;
@@ -4624,7 +4608,6 @@ drm_public int drmGetDeviceFromDevId(dev_t find_rdev,
if (*device == NULL)
return -ENODEV;
return 0;
-#endif
}
/**
|
