mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
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256 lines
9.0 KiB
Diff
256 lines
9.0 KiB
Diff
From 51c39420e3a49d1a7f05a77c64369b7623088238 Mon Sep 17 00:00:00 2001
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From: Sreesudhan Ramakrish Ramkumar <srramku@codeaurora.org>
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Date: Fri, 12 Dec 2014 04:20:59 -0800
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Subject: msm: camera: isp: Validate input parameter for vfe_write and vfe_read
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Validate input parameters for read and write operations in vfe to
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ensure operations are performed within vfe register boundary and
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within structure limits passed by caller.
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Change-Id: If3719de65b32773c2b6ff904da76a951dbfb11eb
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Signed-off-by: Sreesudhan Ramakrish Ramkumar <srramku@codeaurora.org>
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---
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.../platform/msm/camera_v2/isp/msm_isp_util.c | 126 +++++++++++++--------
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.../msm/camera_v2/sensor/io/msm_camera_io_util.c | 11 ++
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.../msm/camera_v2/sensor/io/msm_camera_io_util.h | 2 +
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3 files changed, 89 insertions(+), 50 deletions(-)
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diff --git a/drivers/media/platform/msm/camera_v2/isp/msm_isp_util.c b/drivers/media/platform/msm/camera_v2/isp/msm_isp_util.c
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index c598555..ff213fc 100644
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--- a/drivers/media/platform/msm/camera_v2/isp/msm_isp_util.c
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+++ b/drivers/media/platform/msm/camera_v2/isp/msm_isp_util.c
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@@ -917,7 +917,8 @@ static int msm_isp_send_hw_cmd(struct vfe_device *vfe_dev,
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/* Validate input parameters */
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switch (reg_cfg_cmd->cmd_type) {
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case VFE_WRITE:
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- case VFE_READ: {
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+ case VFE_READ:
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+ case VFE_WRITE_MB: {
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if ((reg_cfg_cmd->u.rw_info.reg_offset >
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(UINT_MAX - reg_cfg_cmd->u.rw_info.len)) ||
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((reg_cfg_cmd->u.rw_info.reg_offset +
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@@ -943,6 +944,58 @@ static int msm_isp_send_hw_cmd(struct vfe_device *vfe_dev,
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}
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break;
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}
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+
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+ case VFE_WRITE_DMI_16BIT:
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+ case VFE_WRITE_DMI_32BIT:
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+ case VFE_WRITE_DMI_64BIT:
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+ case VFE_READ_DMI_16BIT:
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+ case VFE_READ_DMI_32BIT:
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+ case VFE_READ_DMI_64BIT: {
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+ if (reg_cfg_cmd->cmd_type == VFE_WRITE_DMI_64BIT) {
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+ if ((reg_cfg_cmd->u.dmi_info.hi_tbl_offset <=
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+ reg_cfg_cmd->u.dmi_info.lo_tbl_offset) ||
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+ (reg_cfg_cmd->u.dmi_info.hi_tbl_offset -
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+ reg_cfg_cmd->u.dmi_info.lo_tbl_offset !=
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+ (sizeof(uint32_t)))) {
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+ pr_err("%s:%d hi %d lo %d\n",
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+ __func__, __LINE__,
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+ reg_cfg_cmd->u.dmi_info.hi_tbl_offset,
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+ reg_cfg_cmd->u.dmi_info.hi_tbl_offset);
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+ return -EINVAL;
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+ }
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+ if (reg_cfg_cmd->u.dmi_info.len <= sizeof(uint32_t)) {
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+ pr_err("%s:%d len %d\n",
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+ __func__, __LINE__,
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+ reg_cfg_cmd->u.dmi_info.len);
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+ return -EINVAL;
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+ }
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+ if (((UINT_MAX -
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+ reg_cfg_cmd->u.dmi_info.hi_tbl_offset) <
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+ (reg_cfg_cmd->u.dmi_info.len -
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+ sizeof(uint32_t))) ||
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+ ((reg_cfg_cmd->u.dmi_info.hi_tbl_offset +
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+ reg_cfg_cmd->u.dmi_info.len -
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+ sizeof(uint32_t)) > cmd_len)) {
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+ pr_err("%s:%d hi_tbl_offset %d len %d cmd %d\n",
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+ __func__, __LINE__,
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+ reg_cfg_cmd->u.dmi_info.hi_tbl_offset,
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+ reg_cfg_cmd->u.dmi_info.len, cmd_len);
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+ return -EINVAL;
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+ }
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+ }
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+ if ((reg_cfg_cmd->u.dmi_info.lo_tbl_offset >
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+ (UINT_MAX - reg_cfg_cmd->u.dmi_info.len)) ||
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+ ((reg_cfg_cmd->u.dmi_info.lo_tbl_offset +
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+ reg_cfg_cmd->u.dmi_info.len) > cmd_len)) {
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+ pr_err("%s:%d lo_tbl_offset %d len %d cmd_len %d\n",
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+ __func__, __LINE__,
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+ reg_cfg_cmd->u.dmi_info.lo_tbl_offset,
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+ reg_cfg_cmd->u.dmi_info.len, cmd_len);
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+ return -EINVAL;
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+ }
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+ break;
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+ }
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+
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default:
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break;
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}
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@@ -956,39 +1009,27 @@ static int msm_isp_send_hw_cmd(struct vfe_device *vfe_dev,
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break;
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}
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case VFE_WRITE_MB: {
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- uint32_t *data_ptr = cfg_data +
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- reg_cfg_cmd->u.rw_info.cmd_data_offset/4;
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-
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- if ((UINT_MAX - sizeof(*data_ptr) <
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- reg_cfg_cmd->u.rw_info.reg_offset) ||
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- (resource_size(vfe_dev->vfe_mem) <
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- reg_cfg_cmd->u.rw_info.reg_offset +
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- sizeof(*data_ptr))) {
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- pr_err("%s: VFE_WRITE_MB: Invalid length\n", __func__);
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- return -EINVAL;
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- }
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- msm_camera_io_w_mb(*data_ptr, vfe_dev->vfe_base +
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- reg_cfg_cmd->u.rw_info.reg_offset);
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+ msm_camera_io_memcpy_mb(vfe_dev->vfe_base +
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+ reg_cfg_cmd->u.rw_info.reg_offset,
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+ cfg_data + reg_cfg_cmd->u.rw_info.cmd_data_offset/4,
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+ reg_cfg_cmd->u.rw_info.len);
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break;
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}
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case VFE_CFG_MASK: {
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uint32_t temp;
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- if (resource_size(vfe_dev->vfe_mem) <
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- reg_cfg_cmd->u.mask_info.reg_offset)
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- return -EINVAL;
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- temp = msm_camera_io_r(vfe_dev->vfe_base +
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- reg_cfg_cmd->u.mask_info.reg_offset);
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-
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- temp &= ~reg_cfg_cmd->u.mask_info.mask;
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- temp |= reg_cfg_cmd->u.mask_info.val;
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if ((UINT_MAX - sizeof(temp) <
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- reg_cfg_cmd->u.mask_info.reg_offset) ||
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+ reg_cfg_cmd->u.mask_info.reg_offset) ||
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(resource_size(vfe_dev->vfe_mem) <
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reg_cfg_cmd->u.mask_info.reg_offset +
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sizeof(temp))) {
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pr_err("%s: VFE_CFG_MASK: Invalid length\n", __func__);
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return -EINVAL;
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}
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+ temp = msm_camera_io_r(vfe_dev->vfe_base +
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+ reg_cfg_cmd->u.mask_info.reg_offset);
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+
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+ temp &= ~reg_cfg_cmd->u.mask_info.mask;
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+ temp |= reg_cfg_cmd->u.mask_info.val;
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msm_camera_io_w(temp, vfe_dev->vfe_base +
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reg_cfg_cmd->u.mask_info.reg_offset);
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break;
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@@ -1000,24 +1041,9 @@ static int msm_isp_send_hw_cmd(struct vfe_device *vfe_dev,
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uint32_t *hi_tbl_ptr = NULL, *lo_tbl_ptr = NULL;
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uint32_t hi_val, lo_val, lo_val1;
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if (reg_cfg_cmd->cmd_type == VFE_WRITE_DMI_64BIT) {
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- if ((UINT_MAX - reg_cfg_cmd->u.dmi_info.hi_tbl_offset <
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- reg_cfg_cmd->u.dmi_info.len -
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- sizeof(uint32_t)) ||
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- (reg_cfg_cmd->u.dmi_info.hi_tbl_offset +
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- reg_cfg_cmd->u.dmi_info.len -
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- sizeof(uint32_t) > cmd_len)) {
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- pr_err("Invalid Hi Table out of bounds\n");
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- return -EINVAL;
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- }
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hi_tbl_ptr = cfg_data +
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reg_cfg_cmd->u.dmi_info.hi_tbl_offset/4;
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}
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-
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- if (reg_cfg_cmd->u.dmi_info.lo_tbl_offset +
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- reg_cfg_cmd->u.dmi_info.len > cmd_len) {
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- pr_err("Invalid Lo Table out of bounds\n");
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- return -EINVAL;
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- }
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lo_tbl_ptr = cfg_data +
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reg_cfg_cmd->u.dmi_info.lo_tbl_offset/4;
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if (reg_cfg_cmd->cmd_type == VFE_WRITE_DMI_64BIT)
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@@ -1050,24 +1076,17 @@ static int msm_isp_send_hw_cmd(struct vfe_device *vfe_dev,
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uint32_t *hi_tbl_ptr = NULL, *lo_tbl_ptr = NULL;
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uint32_t hi_val, lo_val, lo_val1;
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if (reg_cfg_cmd->cmd_type == VFE_READ_DMI_64BIT) {
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- if (reg_cfg_cmd->u.dmi_info.hi_tbl_offset +
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- reg_cfg_cmd->u.dmi_info.len -
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- sizeof(uint32_t) > cmd_len) {
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- pr_err("Invalid Hi Table out of bounds\n");
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- return -EINVAL;
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- }
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hi_tbl_ptr = cfg_data +
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reg_cfg_cmd->u.dmi_info.hi_tbl_offset/4;
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}
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- if (reg_cfg_cmd->u.dmi_info.lo_tbl_offset +
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- reg_cfg_cmd->u.dmi_info.len > cmd_len) {
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- pr_err("Invalid Lo Table out of bounds\n");
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- return -EINVAL;
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- }
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lo_tbl_ptr = cfg_data +
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reg_cfg_cmd->u.dmi_info.lo_tbl_offset/4;
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+ if (reg_cfg_cmd->cmd_type == VFE_READ_DMI_64BIT)
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+ reg_cfg_cmd->u.dmi_info.len =
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+ reg_cfg_cmd->u.dmi_info.len / 2;
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+
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for (i = 0; i < reg_cfg_cmd->u.dmi_info.len/4; i++) {
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lo_val = msm_camera_io_r(vfe_dev->vfe_base +
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vfe_dev->hw_info->dmi_reg_offset + 0x4);
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@@ -1121,7 +1140,7 @@ static int msm_isp_send_hw_cmd(struct vfe_device *vfe_dev,
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if ((data_ptr < cfg_data) ||
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(UINT_MAX / sizeof(*data_ptr) <
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(data_ptr - cfg_data)) ||
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- (sizeof(*data_ptr) * (data_ptr - cfg_data) >
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+ (sizeof(*data_ptr) * (data_ptr - cfg_data) >=
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cmd_len))
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return -EINVAL;
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*data_ptr++ = msm_camera_io_r(vfe_dev->vfe_base +
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@@ -1187,6 +1206,13 @@ static int msm_isp_send_hw_cmd(struct vfe_device *vfe_dev,
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case SET_WM_UB_SIZE:
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break;
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case SET_UB_POLICY: {
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+
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+ if (cmd_len < sizeof(vfe_dev->vfe_ub_policy)) {
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+ pr_err("%s:%d failed: invalid cmd len %u exp %zu\n",
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+ __func__, __LINE__, cmd_len,
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+ sizeof(vfe_dev->vfe_ub_policy));
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+ return -EINVAL;
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+ }
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vfe_dev->vfe_ub_policy = *cfg_data;
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break;
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}
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diff --git a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_io_util.c b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_io_util.c
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index 78b9148..41c784a 100644
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--- a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_io_util.c
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+++ b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_io_util.c
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@@ -102,6 +102,17 @@ void msm_camera_io_memcpy(void __iomem *dest_addr,
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msm_camera_io_dump(dest_addr, len);
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}
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+void msm_camera_io_memcpy_mb(void __iomem *dest_addr,
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+ void __iomem *src_addr, u32 len)
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+{
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+ int i;
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+ u32 *d = (u32 *) dest_addr;
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+ u32 *s = (u32 *) src_addr;
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+
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+ for (i = 0; i < (len / 4); i++)
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+ msm_camera_io_w_mb(*s++, d++);
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+}
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+
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int msm_cam_clk_sel_src(struct device *dev, struct msm_cam_clk_info *clk_info,
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struct msm_cam_clk_info *clk_src_info, int num_clk)
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{
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diff --git a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_io_util.h b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_io_util.h
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index fa9a283..2a0e21c 100644
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--- a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_io_util.h
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+++ b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_io_util.h
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@@ -38,6 +38,8 @@ u32 msm_camera_io_r_mb(void __iomem *addr);
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void msm_camera_io_dump(void __iomem *addr, int size);
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void msm_camera_io_memcpy(void __iomem *dest_addr,
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void __iomem *src_addr, u32 len);
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+void msm_camera_io_memcpy_mb(void __iomem *dest_addr,
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+ void __iomem *src_addr, u32 len);
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int msm_cam_clk_sel_src(struct device *dev, struct msm_cam_clk_info *clk_info,
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struct msm_cam_clk_info *clk_src_info, int num_clk);
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int msm_cam_clk_enable(struct device *dev, struct msm_cam_clk_info *clk_info,
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--
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cgit v1.1
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