| /* |
| Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are |
| met: |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| * Redistributions in binary form must reproduce the above |
| copyright notice, this list of conditions and the following |
| disclaimer in the documentation and/or other materials provided |
| with the distribution. |
| * Neither the name of The Linux Foundation nor the names of its |
| contributors may be used to endorse or promote products derived |
| from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #include <unistd.h> |
| #include <sys/ioctl.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "IPACM_Header.h" |
| #include "IPACM_Log.h" |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| //All interaction through the driver are made through this inode. |
| static const char *DEVICE_NAME = "/dev/ipa"; |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| IPACM_Header::IPACM_Header() |
| { |
| m_fd = open(DEVICE_NAME, O_RDWR); |
| if (-1 == m_fd) |
| { |
| IPACMERR("Failed to open %s in IPACM_Header test application constructor.\n", DEVICE_NAME); |
| } |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| IPACM_Header::~IPACM_Header() |
| { |
| if (-1 != m_fd) |
| { |
| close(m_fd); |
| } |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| bool IPACM_Header::DeviceNodeIsOpened() |
| { |
| return (-1 != m_fd); |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| bool IPACM_Header::AddHeader(struct ipa_ioc_add_hdr *pHeaderTableToAdd) |
| { |
| int nRetVal = 0; |
| //call the Driver ioctl in order to add header |
| nRetVal = ioctl(m_fd, IPA_IOC_ADD_HDR, pHeaderTableToAdd); |
| IPACMDBG("return value: %d\n", nRetVal); |
| return (-1 != nRetVal); |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| bool IPACM_Header::DeleteHeader(struct ipa_ioc_del_hdr *pHeaderTableToDelete) |
| { |
| int nRetVal = 0; |
| //call the Driver ioctl in order to remove header |
| nRetVal = ioctl(m_fd, IPA_IOC_DEL_HDR, pHeaderTableToDelete); |
| IPACMDBG("return value: %d\n", nRetVal); |
| return (-1 != nRetVal); |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| bool IPACM_Header::Commit() |
| { |
| int nRetVal = 0; |
| nRetVal = ioctl(m_fd, IPA_IOC_COMMIT_HDR); |
| IPACMDBG("return value: %d\n", nRetVal); |
| return true; |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| bool IPACM_Header::Reset() |
| { |
| int nRetVal = 0; |
| |
| nRetVal = ioctl(m_fd, IPA_IOC_RESET_HDR); |
| nRetVal |= ioctl(m_fd, IPA_IOC_COMMIT_HDR); |
| IPACMDBG("return value: %d\n", nRetVal); |
| return true; |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| bool IPACM_Header::GetHeaderHandle(struct ipa_ioc_get_hdr *pHeaderStruct) |
| { |
| int retval = 0; |
| |
| if (!DeviceNodeIsOpened()) return false; |
| |
| retval = ioctl(m_fd, IPA_IOC_GET_HDR, pHeaderStruct); |
| if (retval) |
| { |
| IPACMERR("IPA_IOC_GET_HDR ioctl failed, routingTable =0x%p, retval=0x%x.\n", pHeaderStruct, retval); |
| return false; |
| } |
| |
| IPACMDBG("IPA_IOC_GET_HDR ioctl issued to IPA header insertion block.\n"); |
| return true; |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| bool IPACM_Header::CopyHeader(struct ipa_ioc_copy_hdr *pCopyHeaderStruct) |
| { |
| int retval = 0; |
| |
| if (!DeviceNodeIsOpened()) return false; |
| |
| retval = ioctl(m_fd, IPA_IOC_COPY_HDR, pCopyHeaderStruct); |
| if (retval) |
| { |
| IPACMERR("IPA_IOC_COPY_HDR ioctl failed, retval=0x%x.\n", retval); |
| return false; |
| } |
| |
| IPACMDBG("IPA_IOC_COPY_HDR ioctl issued to IPA header insertion block.\n"); |
| return true; |
| } |
| |
| bool IPACM_Header::DeleteHeaderHdl(uint32_t hdr_hdl) |
| { |
| const uint8_t NUM_HDLS = 1; |
| struct ipa_ioc_del_hdr *pHeaderDescriptor = NULL; |
| struct ipa_hdr_del *hd_rule_entry; |
| int len = 0; |
| bool res = true; |
| |
| if (hdr_hdl == 0) |
| { |
| IPACMERR("Invalid header handle passed. Ignoring it\n"); |
| return false; |
| } |
| |
| len = (sizeof(struct ipa_ioc_del_hdr)) + (NUM_HDLS * sizeof(struct ipa_hdr_del)); |
| pHeaderDescriptor = (struct ipa_ioc_del_hdr *)malloc(len); |
| if (pHeaderDescriptor == NULL) |
| { |
| IPACMERR("Unable to allocate memory for del header\n"); |
| return false; |
| } |
| |
| memset(pHeaderDescriptor, 0, len); |
| pHeaderDescriptor->commit = true; |
| pHeaderDescriptor->num_hdls = NUM_HDLS; |
| hd_rule_entry = &pHeaderDescriptor->hdl[0]; |
| |
| hd_rule_entry->hdl = hdr_hdl; |
| hd_rule_entry->status = -1; |
| |
| IPACMDBG("Deleting Header hdl:(%x)\n", hd_rule_entry->hdl); |
| if ((false == DeleteHeader(pHeaderDescriptor)) || |
| (hd_rule_entry->status)) |
| { |
| IPACMERR("Header hdl:(%x) deletion failed! status: %d\n", hd_rule_entry->hdl,hd_rule_entry->status); |
| res = false; |
| goto fail; |
| } |
| |
| IPACMDBG_H("Deleted Header hdl:(%x) successfully\n", hd_rule_entry->hdl); |
| |
| fail: |
| free(pHeaderDescriptor); |
| |
| return res; |
| |
| } |
| |
| bool IPACM_Header::AddHeaderProcCtx(struct ipa_ioc_add_hdr_proc_ctx* pHeader) |
| { |
| int ret = 0; |
| //call the Driver ioctl to add header processing context |
| ret = ioctl(m_fd, IPA_IOC_ADD_HDR_PROC_CTX, pHeader); |
| return (ret != -1); |
| } |
| |
| bool IPACM_Header::DeleteHeaderProcCtx(uint32_t hdl) |
| { |
| int len, ret; |
| struct ipa_ioc_del_hdr_proc_ctx* pHeaderTable = NULL; |
| |
| len = sizeof(struct ipa_ioc_del_hdr_proc_ctx) + sizeof(struct ipa_hdr_proc_ctx_del); |
| pHeaderTable = (struct ipa_ioc_del_hdr_proc_ctx*)malloc(len); |
| if(pHeaderTable == NULL) |
| { |
| IPACMERR("Failed to allocate buffer.\n"); |
| return false; |
| } |
| memset(pHeaderTable, 0, len); |
| |
| pHeaderTable->commit = 1; |
| pHeaderTable->num_hdls = 1; |
| pHeaderTable->hdl[0].hdl = hdl; |
| |
| ret = ioctl(m_fd, IPA_IOC_DEL_HDR_PROC_CTX, pHeaderTable); |
| free(pHeaderTable); |
| return (ret != -1); |
| } |
| |