* Re: Qualcomm rmnet driver and qmi_wwan
2018-06-05 14:54 ` Dan Williams
@ 2018-06-05 17:38 ` Subash Abhinov Kasiviswanathan
2018-06-08 10:21 ` Daniele Palmas
0 siblings, 1 reply; 15+ messages in thread
From: Subash Abhinov Kasiviswanathan @ 2018-06-05 17:38 UTC (permalink / raw)
To: Dan Williams, Daniele Palmas; +Cc: netdev
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On 2018-06-05 08:54, Dan Williams wrote:
> On Tue, 2018-06-05 at 11:38 +0200, Daniele Palmas wrote:
>> Hi,
>>
>> 2018-02-21 20:47 GMT+01:00 Subash Abhinov Kasiviswanathan
>> <subashab@codeaurora.org>:
>> > On 2018-02-21 04:38, Daniele Palmas wrote:
>> > >
>> > > Hello,
>> > >
>> > > in rmnet kernel documentation I read:
>> > >
>> > > "This driver can be used to register onto any physical network
>> > > device in
>> > > IP mode. Physical transports include USB, HSIC, PCIe and IP
>> > > accelerator."
>> > >
>> > > Does this mean that it can be used in association with the
>> > > qmi_wwan
>> > > driver?
>> > >
>> > > If yes, can someone give me an hint on the steps to follow?
>> > >
>> > > If not, does anyone know if it is possible to modify qmi_wwan in
>> > > order
>> > > to take advantage of the features provided by the rmnet driver?
>> > >
>> > > In this case hint on the changes for modifying qmi_wwan are
>> > > welcome.
>> > >
>> > > Thanks in advance,
>> > > Daniele
>> >
>> >
>> > Hi
>> >
>> > I havent used qmi_wwan so the following comment is based on code
>> > inspection.
>> > qmimux_register_device() is creating qmimux devices with usb net
>> > device as
>> > real_dev. The Multiplexing and aggregation header (qmimux_hdr) is
>> > stripped
>> > off
>> > in qmimux_rx_fixup() and the packet is passed on to stack.
>> >
>> > You could instead create rmnet devices with the usb netdevice as
>> > real dev.
>> > The packets from the usb net driver can be queued to network stack
>> > directly
>> > as rmnet driver will setup a RX handler. rmnet driver will process
>> > the
>> > packets
>> > further and then queue to network stack.
>> >
>>
>> in kernel documentation I read that rmnet user space configuration is
>> done through librmnetctl available at
>>
>> https://source.codeaurora.org/quic/la/platform/vendor/qcom-opensource
>> /dataservices/tree/rmnetctl
>>
>> However it seems to me that this is a bit outdated (e.g. it does not
>> properly build since it is looking for kernel header
>> linux/rmnet_data.h that, as far as I understand, is no more present).
>>
>> Is there available a more recent version of the tool?
Hi Daniele
The attached patch should have an updated version of the tool.
Usage -
rmnetcli -n newlink wwan0 rmnet0 1 1
where wwan0 is the physical device
rmnet0 is the virtual device to be created
1 is the mux id
the other 1 is the flag to configure DL de-aggregation by default
To delete a device -
ip link delete rmnet0
>
> I'd expect that somebody (Subash?) would add support for the
> rmnet/qmimux options to iproute2 via 'ip link' like exists for most
> other device types.
Hi Dan
Yes, I can do that and update the documentation to point to using
iproute2.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
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[-- Attachment #2: 0001-librmnetctl-add-initial-library-code.patch --]
[-- Type: text/x-diff; name=0001-librmnetctl-add-initial-library-code.patch, Size: 97800 bytes --]
From 94abb589a8e60c49d9cc4598a27b50c9f757b623 Mon Sep 17 00:00:00 2001
From: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Date: Tue, 5 Jun 2018 11:20:56 -0600
Subject: [PATCH] librmnetctl: add initial library code
Add initial snapshot of Rmnet Control library for
upstream rmnet driver.
---
rmnetlib/Makefile.am | 2 +
rmnetlib/cli/Makefile.am | 12 +
rmnetlib/cli/rmnetcli.c | 502 ++++++++++++++
rmnetlib/cli/rmnetcli.h | 61 ++
rmnetlib/inc/librmnetctl.h | 604 +++++++++++++++++
rmnetlib/inc/librmnetctl_hndl.h | 65 ++
rmnetlib/src/Makefile.am | 14 +
rmnetlib/src/librmnetctl.c | 1369 +++++++++++++++++++++++++++++++++++++++
8 files changed, 2629 insertions(+)
create mode 100644 rmnetlib/Makefile.am
create mode 100644 rmnetlib/cli/Makefile.am
create mode 100644 rmnetlib/cli/rmnetcli.c
create mode 100644 rmnetlib/cli/rmnetcli.h
create mode 100644 rmnetlib/inc/librmnetctl.h
create mode 100644 rmnetlib/inc/librmnetctl_hndl.h
create mode 100644 rmnetlib/src/Makefile.am
create mode 100644 rmnetlib/src/librmnetctl.c
diff --git a/rmnetlib/Makefile.am b/rmnetlib/Makefile.am
new file mode 100644
index 0000000..7cafa82
--- /dev/null
+++ b/rmnetlib/Makefile.am
@@ -0,0 +1,2 @@
+SUBDIRS=src cli
+
diff --git a/rmnetlib/cli/Makefile.am b/rmnetlib/cli/Makefile.am
new file mode 100644
index 0000000..499ef88
--- /dev/null
+++ b/rmnetlib/cli/Makefile.am
@@ -0,0 +1,12 @@
+AM_CFLAGS = $(CODE_COVERAGE_CFLAGS)
+AM_CFLAGS += -Wall -Werror -Wundef -Wstrict-prototypes -Wno-trigraphs -g
+AM_CFLAGS += -I./../inc
+AM_LDFLAGS = $(CODE_COVERAGE_LDFLAGS)
+
+rmnetcli_SOURCES = rmnetcli.c
+bin_PROGRAMS = rmnetcli
+requiredlibs = ../src/librmnetctl.la
+rmnetcli_LDADD = $(requiredlibs)
+LOCAL_MODULE := librmnetctl
+LOCAL_PRELINK_MODULE := false
+include $(BUILD_SHARED_LIBRARY)
diff --git a/rmnetlib/cli/rmnetcli.c b/rmnetlib/cli/rmnetcli.c
new file mode 100644
index 0000000..dc81054
--- /dev/null
+++ b/rmnetlib/cli/rmnetcli.c
@@ -0,0 +1,502 @@
+/******************************************************************************
+
+ R M N E T C L I . C
+
+Copyright (c) 2013-2015, 2017-2018 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.
+
+******************************************************************************/
+
+/******************************************************************************
+
+ @file rmnetcli.c
+ @brief command line interface to expose rmnet control API's
+
+ DESCRIPTION
+ File containing implementation of the command line interface to expose the
+ rmnet control configuration .
+
+******************************************************************************/
+
+/*===========================================================================
+ INCLUDE FILES
+===========================================================================*/
+
+#include <sys/socket.h>
+#include <stdint.h>
+#include <linux/netlink.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include "rmnetcli.h"
+#include "librmnetctl.h"
+
+#define RMNET_MAX_STR_LEN 16
+
+#define _RMNETCLI_CHECKNULL(X) do { if (!X) { \
+print_rmnet_api_status(RMNETCTL_INVALID_ARG, RMNETCTL_CFG_FAILURE_NO_COMMAND); \
+ rmnetctl_cleanup(handle); \
+ return RMNETCTL_INVALID_ARG; \
+ } } while (0);
+#define _STRTOUI32(X) (uint32_t)strtoul(X, NULL, 0)
+#define _STRTOUI16(X) (uint16_t)strtoul(X, NULL, 0)
+#define _STRTOUI8(X) (uint8_t)strtoul(X, NULL, 0)
+#define _STRTOI32(X) (int32_t)strtol(X, NULL, 0)
+
+#define _5TABS "\n\t\t\t\t\t"
+#define _2TABS "\n\t\t"
+
+/*!
+* @brief Contains a list of error message from CLI
+*/
+char rmnetcfg_error_code_text
+[RMNETCFG_TOTAL_ERR_MSGS][RMNETCTL_ERR_MSG_SIZE] = {
+ "Help option Specified",
+ "ERROR: No\\Invalid command was specified\n",
+ "ERROR: Could not allocate buffer for Egress device\n"
+};
+
+/*!
+* @brief Method to display the syntax for the commands
+* @details Displays the syntax and usage for the commands
+* @param void
+* @return void
+*/
+static void rmnet_api_usage(void)
+{
+ printf("RmNet API Usage:\n\n");
+ printf("rmnetcli help Displays this help\n");
+ printf("\n");
+ printf("rmnetcli assocnetdev <dev_name> Registers the RmNet");
+ printf(_5TABS" data driver on a particular");
+ printf(_5TABS" device.dev_name cannot");
+ printf(_5TABS" be larger than 15");
+ printf(_5TABS" characters. Returns");
+ printf(_5TABS" the status code.\n\n");
+ printf("rmnetcli unassocnetdev <dev_name> Unregisters the");
+ printf(_5TABS" RmNet data driver on a particular");
+ printf(_5TABS" device. dev_name cannot");
+ printf(_5TABS" be larger than 15");
+ printf(_5TABS" characters. Returns");
+ printf(_5TABS" the status code.\n\n");
+ printf("rmnetcli getnetdevassoc <dev_name> Get if the RmNet");
+ printf(_5TABS" data driver is registered on");
+ printf(_5TABS" a particular device.");
+ printf(_5TABS" dev_name cannot be");
+ printf(_5TABS" larger than 15");
+ printf(_5TABS" characters. Returns 1");
+ printf(_5TABS" if is registered and");
+ printf(_5TABS" 0 if it is not");
+ printf(_5TABS" registered\n\n");
+ printf("rmnetcli setledf <egress_flags> Sets the egress data");
+ printf(_2TABS" <agg_size> format for a particular link.");
+ printf(_2TABS" <agg_count> dev_name cannot be larger");
+ printf(_2TABS" <dev_name> than 15 characters.");
+ printf(_5TABS" Returns the status code\n\n");
+ printf("rmnetcli getledf <dev_name> Gets the egress data");
+ printf(_5TABS" format for a particular link.");
+ printf(_5TABS" dev_name cannot be larger");
+ printf(_5TABS" than 15. Returns the 4");
+ printf(_5TABS" byte unsigned integer");
+ printf(_5TABS" egress_flags\n\n");
+ printf("rmnetcli setlidf <ingress_flags> Sets the ingress");
+ printf(_2TABS" <tail_spacing> data format for a particular");
+ printf(_2TABS" <dev_name> link. ingress_flags is 4");
+ printf(_5TABS" byte unsigned integer.");
+ printf(_5TABS" tail_spacing is a one.");
+ printf(_5TABS" byte unsigned integer.");
+ printf(_5TABS" dev_name cannot be");
+ printf(_5TABS" larger than 15.");
+ printf(_5TABS" characters. Returns");
+ printf(_5TABS" the status code\n\n");
+ printf("rmnetcli getlidf <dev_name> Gets the ingress");
+ printf(_5TABS" data format for a particular");
+ printf(_5TABS" link. dev_name cannot be");
+ printf(_5TABS" larger than 15. Returns");
+ printf(_5TABS" the 4 byte unsigned");
+ printf(_5TABS" integer ingress_flags\n\n");
+ printf("rmnetcli setlepc <logical_ep_id> Sets the logical");
+ printf(_2TABS" <rmnet_mode> endpoint configuration for");
+ printf(_2TABS" <dev_name> a particular link.");
+ printf(_2TABS" <egress_dev_name> logical_ep_id are 32bit");
+ printf(_5TABS" integers from -1 to 31.");
+ printf(_5TABS" rmnet_mode is a 1 byte");
+ printf(_5TABS" unsigned integer of");
+ printf(_5TABS" value none, vnd or");
+ printf(_5TABS" bridged. dev_name");
+ printf(_5TABS" and egress_dev_name");
+ printf(_5TABS" cannot be larger");
+ printf(_5TABS" than 15 characters");
+ printf(_5TABS" Returns the status code\n\n");
+ printf("rmnetcli unsetlepc <logical_ep_id> Un-sets the logical");
+ printf(_2TABS" <dev_name> endpoint configuration for");
+ printf(_5TABS" a particular link.");
+ printf(_5TABS" integers from -1 to 31.");
+ printf(_5TABS" dev_name cannot be larger");
+ printf(_5TABS" than 15 characters");
+ printf(_5TABS" Returns the status code\n\n");
+ printf("rmnetcli getlepc <logical_ep_id> Sets the logical");
+ printf(_2TABS" <dev_name> endpoint configuration for a");
+ printf(_5TABS" particular link.");
+ printf(_5TABS" logical_ep_id are 32bit");
+ printf(_5TABS" integers from -1 to 31.");
+ printf(_5TABS" Returns the rmnet_mode");
+ printf(_5TABS" and egress_dev_name.");
+ printf(_5TABS" rmnet_mode is a 1");
+ printf(_5TABS" byte unsigned integer");
+ printf(_5TABS" of value none, vnd or");
+ printf(_5TABS" bridged. dev_name and");
+ printf(_5TABS" egress_dev_name cannot be");
+ printf(_5TABS" larger than 15 ");
+ printf(_5TABS" characters. Returns the");
+ printf(_5TABS" status code\n\n");
+ printf("rmnetcli newvnd <dev_id> Creates a new");
+ printf(_5TABS" virtual network device node.");
+ printf(_5TABS" dev_id is an int");
+ printf(_5TABS" less than 32. Returns");
+ printf(_5TABS" the status code\n\n");
+ printf("rmnetcli newvndprefix <dev_id> <name_prefix> Creates");
+ printf(_5TABS" virtual network device node.");
+ printf(_5TABS" dev_id is an int");
+ printf(_5TABS" less than 32. Prefix");
+ printf(_5TABS" must be less than");
+ printf(_5TABS" 15 chars. Returns");
+ printf(_5TABS" the status code\n\n");
+ printf("rmnetcli newvndname <dev_id> <name_prefix> Creates");
+ printf(_5TABS" virtual network device node.");
+ printf(_5TABS" dev_id is an int");
+ printf(_5TABS" less than 32. Name");
+ printf(_5TABS" must be less than");
+ printf(_5TABS" 15 chars. Returns");
+ printf(_5TABS" the status code\n\n");
+ printf("rmnetcli getvndname <dev_id> Get name of");
+ printf(_5TABS" network device node from id\n\n");
+ printf("rmnetcli freevnd <dev_id> Removes virtual");
+ printf(_5TABS" network device node. dev_name");
+ printf(_5TABS" cannot be larger than 15.");
+ printf(_5TABS" Returns the status code\n\n");
+ printf("rmnetcli addvnctcflow <dev_id> Add a modem flow");
+ printf(_2TABS" <mdm_flow_hndl> handle - tc flow handle");
+ printf(_2TABS" <tc_flow_hndl> mapping for a virtual network");
+ printf(_2TABS" device node\n\n");
+ printf("rmnetcli delvnctcflow <dev_id> Delete a modem flow");
+ printf(_2TABS" <mdm_flow_hndl> handle - tc flow handle");
+ printf(_2TABS" <tc_flow_hndl> mapping for a virtual network");
+ printf(_2TABS" device node\n\n");
+ printf("**************************\n");
+ printf("RmNet RTM_NETLINK API Usage:\n\n");
+ printf("rmnetcli -n newlink <dev_id> Add a vnd w/ newlink");
+ printf(_2TABS" <vnd> string - vnd device_name");
+ printf(_2TABS" <vnd id> int - new vnd id");
+ printf(_2TABS" [flags] int - starting flag config\n\n");
+ printf("rmnetcli -n changelink <dev_id> Change a vnd's flags");
+ printf(_2TABS" <vnd> string - vnd device_name");
+ printf(_2TABS" <vnd id> int - new vnd id");
+ printf(_2TABS" <flags> int - new flag config\n\n");
+ printf("rmnetcli -n dellink <dev_name> Delete a vnd");
+ printf(_2TABS" by inputting dev name\n\n");
+ printf("rmnetcli -n bridgelink <dev_name> Bridge a vnd and a dev");
+ printf(_2TABS" <vnd id> by specifying dev id and vnd id\n\n");
+
+}
+
+static void print_rmnetctl_lib_errors(uint16_t error_number)
+{
+ if ((error_number > RMNETCTL_API_SUCCESS) &&
+ (error_number < RMNETCTL_API_ERR_ENUM_LENGTH)) {
+ printf("%s", rmnetctl_error_code_text[error_number]);
+ }
+ if ((error_number >= RMNETCFG_ERR_NUM_START) &&
+ (error_number < RMNETCFG_ERR_NUM_START + RMNETCFG_TOTAL_ERR_MSGS)) {
+ printf("%s", rmnetcfg_error_code_text
+ [error_number - RMNETCFG_ERR_NUM_START]);
+ if ((error_number == RMNETCTL_CFG_SUCCESS_HELP_COMMAND) ||
+ (error_number == RMNETCTL_CFG_FAILURE_NO_COMMAND))
+ rmnet_api_usage();
+ }
+}
+
+/*!
+* @brief Method to check the error numbers generated from API calls
+* @details Displays the error messages based on each error code
+* @param error_number Error number returned from the API and the CLI
+* @return void
+*/
+static void print_rmnet_api_status(int return_code, uint16_t error_number)
+{
+ if (return_code == RMNETCTL_SUCCESS)
+ printf("SUCCESS\n");
+ else if (return_code == RMNETCTL_LIB_ERR) {
+ printf("LIBRARY ");
+ print_rmnetctl_lib_errors(error_number);
+ } else if (return_code == RMNETCTL_KERNEL_ERR) {
+ if (error_number < RMNETCTL_API_ERR_ENUM_LENGTH)
+ printf("KERNEL ERROR: System or rmnet error %d\n",
+ error_number);
+ }
+ else if (return_code == RMNETCTL_INVALID_ARG)
+ printf("INVALID_ARG\n");
+}
+
+/*!
+* @brief Method to make the API calls
+* @details Checks for each type of parameter and calls the appropriate
+* function based on the number of parameters and parameter type
+* @param argc Number of arguments which vary based on the commands
+* @param argv Value of the arguments which vary based on the commands
+* @return RMNETCTL_SUCCESS if successful. Relevant data might be printed
+* based on the message type
+* @return RMNETCTL_LIB_ERR if there was a library error. Error code will be
+* printed
+* @return RMNETCTL_KERNEL_ERR if there was a error in the kernel. Error code will be
+* printed
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+
+static int rmnet_api_call(int argc, char *argv[])
+{
+ struct rmnetctl_hndl_s *handle = NULL;
+ uint16_t error_number = RMNETCTL_CFG_FAILURE_NO_COMMAND;
+ int return_code = RMNETCTL_LIB_ERR;
+ uint32_t flags = 0;
+ uint8_t rmnet_mode;
+ char *egress_dev_name;
+ if ((!argc) || (!*argv)) {
+ print_rmnet_api_status(RMNETCTL_LIB_ERR,
+ RMNETCTL_CFG_FAILURE_NO_COMMAND);
+ return RMNETCTL_LIB_ERR;
+ }
+ if (!strcmp(*argv, "help")) {
+ print_rmnet_api_status(RMNETCTL_LIB_ERR,
+ RMNETCTL_CFG_SUCCESS_HELP_COMMAND);
+ return RMNETCTL_LIB_ERR;
+ }
+
+ if (!strcmp(*argv, "-n")) {
+ return_code = rtrmnet_ctl_init(&handle, &error_number);
+ if (return_code != RMNETCTL_SUCCESS) {
+ print_rmnet_api_status(return_code, error_number);
+ return RMNETCTL_LIB_ERR;
+ }
+ error_number = RMNETCTL_CFG_FAILURE_NO_COMMAND;
+ return_code = RMNETCTL_LIB_ERR;
+ argv++;
+ argc--;
+ if ((!argc) || (!*argv)) {
+ print_rmnet_api_status(RMNETCTL_LIB_ERR,
+ RMNETCTL_CFG_FAILURE_NO_COMMAND);
+ return RMNETCTL_LIB_ERR;
+ }
+ if (!strcmp(*argv, "newlink")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ _RMNETCLI_CHECKNULL(argv[3]);
+ /* If optional flag was used pass it on*/
+ if (argv[4])
+ flags = _STRTOI32(argv[4]);
+
+ return_code = rtrmnet_ctl_newvnd(handle, argv[1],
+ argv[2],
+ &error_number,
+ _STRTOI32(argv[3]),
+ flags);
+ } else if (!strcmp(*argv, "changelink")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ _RMNETCLI_CHECKNULL(argv[3]);
+ _RMNETCLI_CHECKNULL(argv[4]);
+
+ return_code = rtrmnet_ctl_changevnd(handle, argv[1],
+ argv[2],
+ &error_number,
+ _STRTOI32(argv[3]),
+ _STRTOI32(argv[4]));
+ } else if (!strcmp(*argv, "dellink")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ return_code = rtrmnet_ctl_delvnd(handle, argv[1],
+ &error_number);
+ } else if (!strcmp(*argv, "bridge")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ return_code = rtrmnet_ctl_bridgevnd(handle, argv[1],
+ argv[2],
+ &error_number);
+ }
+ goto end;
+ } else {
+ return_code = rmnetctl_init(&handle, &error_number);
+ if (return_code != RMNETCTL_SUCCESS) {
+ print_rmnet_api_status(return_code, error_number);
+ return RMNETCTL_LIB_ERR;
+ }
+
+ }
+ error_number = RMNETCTL_CFG_FAILURE_NO_COMMAND;
+ return_code = RMNETCTL_LIB_ERR;
+ if (!strcmp(*argv, "assocnetdev")) {
+ return_code = rmnet_associate_network_device(handle,
+ argv[1], &error_number, RMNETCTL_DEVICE_ASSOCIATE);
+ } else if (!strcmp(*argv, "unassocnetdev")) {
+ return_code = rmnet_associate_network_device(handle,
+ argv[1], &error_number, RMNETCTL_DEVICE_UNASSOCIATE);
+ } else if (!strcmp(*argv, "getnetdevassoc")) {
+ int register_status;
+ return_code = rmnet_get_network_device_associated(handle,
+ argv[1], ®ister_status, &error_number);
+ if (return_code == RMNETCTL_SUCCESS)
+ printf("register_status is %d\n", register_status);
+ } else if (!strcmp(*argv, "getledf")) {
+ uint32_t egress_flags;
+ uint16_t agg_size, agg_count;
+ return_code = rmnet_get_link_egress_data_format(handle,
+ argv[1], &egress_flags, &agg_size, &agg_count, &error_number);
+ if (return_code == RMNETCTL_SUCCESS) {
+ printf("egress_flags is %u\n", egress_flags);
+ printf("agg_size is %u\n", agg_size);
+ printf("agg_count is %u\n", agg_count);
+ }
+ } else if (!strcmp(*argv, "getlidf")) {
+ uint32_t ingress_flags;
+ uint8_t tail_spacing;
+ return_code = rmnet_get_link_ingress_data_format_tailspace(
+ handle, argv[1], &ingress_flags, &tail_spacing, &error_number);
+ if (return_code == RMNETCTL_SUCCESS) {
+ printf("ingress_flags is %u\n", ingress_flags);
+ printf("tail_spacing is %u\n", tail_spacing);
+ }
+ } else if (!strcmp(*argv, "newvndprefix")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ return_code = rmnet_new_vnd_prefix(handle,
+ _STRTOUI32(argv[1]), &error_number, RMNETCTL_NEW_VND, argv[2]);
+ } else if (!strcmp(*argv, "newvndname")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ return_code = rmnet_new_vnd_name(handle,
+ _STRTOUI32(argv[1]), &error_number, argv[2]);
+ } else if (!strcmp(*argv, "newvnd")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ return_code = rmnet_new_vnd(handle,
+ _STRTOUI32(argv[1]), &error_number, RMNETCTL_NEW_VND);
+ } else if (!strcmp(*argv, "getvndname")) {
+ char buffer[32];
+ memset(buffer, 0, 32);
+ _RMNETCLI_CHECKNULL(argv[1]);
+ return_code = rmnet_get_vnd_name(handle, _STRTOUI32(argv[1]),
+ &error_number, buffer, 32);
+ if (return_code == RMNETCTL_SUCCESS) {
+ printf("VND name: %s\n", buffer);
+ }
+ } else if (!strcmp(*argv, "freevnd")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ return_code = rmnet_new_vnd(handle,
+ _STRTOUI32(argv[1]), &error_number, RMNETCTL_FREE_VND);
+ } else if (!strcmp(*argv, "setlidf")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ _RMNETCLI_CHECKNULL(argv[3]);
+ return_code = rmnet_set_link_ingress_data_format_tailspace(
+ handle, _STRTOUI32(argv[1]), _STRTOUI8(argv[2]), argv[3],
+ &error_number);
+ } else if (!strcmp(*argv, "delvnctcflow")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ _RMNETCLI_CHECKNULL(argv[3]);
+ return_code = rmnet_add_del_vnd_tc_flow(handle,
+ _STRTOUI32(argv[1]), _STRTOUI32(argv[2]), _STRTOUI32(argv[3]),
+ RMNETCTL_DEL_FLOW, &error_number);
+ } else if (!strcmp(*argv, "getlepc")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ egress_dev_name = NULL;
+ egress_dev_name = (char *)malloc(RMNET_MAX_STR_LEN
+ * sizeof(char));
+ if (!egress_dev_name) {
+ print_rmnet_api_status(RMNETCTL_LIB_ERR,
+ RMNETCTL_CFG_FAILURE_EGRESS_DEV_NAME_NULL);
+ rmnetctl_cleanup(handle);
+ return RMNETCTL_LIB_ERR;
+ }
+ return_code = rmnet_get_logical_ep_config(handle,
+ _STRTOI32(argv[1]), argv[2], &rmnet_mode,
+ &egress_dev_name, RMNET_MAX_STR_LEN, &error_number);
+ if (return_code == RMNETCTL_SUCCESS) {
+ printf("rmnet_mode is %u\n", rmnet_mode);
+ printf("egress_dev_name is %s\n", egress_dev_name);
+ }
+ free(egress_dev_name);
+ } else if (!strcmp(*argv, "addvnctcflow")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ _RMNETCLI_CHECKNULL(argv[3]);
+ return_code = rmnet_add_del_vnd_tc_flow(handle,
+ _STRTOUI32(argv[1]), _STRTOUI32(argv[2]), _STRTOUI32(argv[3]),
+ RMNETCTL_ADD_FLOW, &error_number);
+ } else if (!strcmp(*argv, "setledf")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ _RMNETCLI_CHECKNULL(argv[3]);
+ return_code = rmnet_set_link_egress_data_format(handle,
+ _STRTOUI32(argv[1]), _STRTOUI16(argv[2]), _STRTOUI16(argv[3]),
+ argv[4], &error_number);
+ } else if (!strcmp(*argv, "setlepc")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ _RMNETCLI_CHECKNULL(argv[2]);
+ return_code = rmnet_set_logical_ep_config(handle,
+ _STRTOI32(argv[1]), _STRTOUI8(argv[2]), argv[3], argv[4],
+ &error_number);
+ } else if (!strcmp(*argv, "unsetlepc")) {
+ _RMNETCLI_CHECKNULL(argv[1]);
+ return_code = rmnet_unset_logical_ep_config(handle,
+ _STRTOI32(argv[1]), argv[2], &error_number);
+ }
+end:
+ print_rmnet_api_status(return_code, error_number);
+ (void)rtrmnet_ctl_deinit(handle);
+ return return_code;
+}
+
+/*!
+* @brief Method which serves as en entry point to the rmnetcli function
+* @details Entry point for the RmNet Netlink API. This is the command line
+* interface for the RmNet API
+* @param argc Number of arguments which vary based on the commands
+* @param argv Value of the arguments which vary based on the commands
+* @return RMNETCTL_SUCCESS if successful. Relevant data might be printed
+* based on the message type
+* @return RMNETCTL_LIB_ERR if there was a library error. Error code will be
+* printed
+* @return RMNETCTL_KERNEL_ERR if there was a error in the kernel. Error code will be
+* printed
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int main(int argc, char *argv[])
+{
+ argc--;
+ argv++;
+ return rmnet_api_call(argc, argv);
+}
diff --git a/rmnetlib/cli/rmnetcli.h b/rmnetlib/cli/rmnetcli.h
new file mode 100644
index 0000000..6375082
--- /dev/null
+++ b/rmnetlib/cli/rmnetcli.h
@@ -0,0 +1,61 @@
+/******************************************************************************
+
+ R M N E T C L I . H
+
+Copyright (c) 2013, 2015 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.
+
+******************************************************************************/
+
+/******************************************************************************
+
+ @file rmnetcli.h
+ @brief headers for the command line interface to expose rmnet control API's
+
+ DESCRIPTION
+ Header file containing definition for the command line interface to expose
+ rmnet control API's
+
+******************************************************************************/
+
+#ifndef RMNETCLI_H
+#define RMNETCLI_H
+
+/* Print the help for the commands since the help flag was used. */
+#define RMNETCTL_CFG_SUCCESS_HELP_COMMAND 100
+/* No/invalid API call was specified. So return an error. */
+#define RMNETCTL_CFG_FAILURE_NO_COMMAND 101
+/* The buffer for egress device name was NULL */
+#define RMNETCTL_CFG_FAILURE_EGRESS_DEV_NAME_NULL 102
+
+/* This should always be the value of the starting element */
+#define RMNETCFG_ERR_NUM_START 100
+
+/* This should always be the total number of error message from CLI */
+#define RMNETCFG_TOTAL_ERR_MSGS 3
+
+#endif /* not defined RMNETCLI_H */
diff --git a/rmnetlib/inc/librmnetctl.h b/rmnetlib/inc/librmnetctl.h
new file mode 100644
index 0000000..3d622bf
--- /dev/null
+++ b/rmnetlib/inc/librmnetctl.h
@@ -0,0 +1,604 @@
+/******************************************************************************
+
+ L I B R M N E T C T L . H
+
+Copyright (c) 2013-2015, 2017-2018 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.
+
+******************************************************************************/
+
+/*!
+* @file librmnetctl.h
+* @brief rmnet control API's header file
+*/
+
+#ifndef LIBRMNETCTL_H
+#define LIBRMNETCTL_H
+
+/* RMNET API succeeded */
+#define RMNETCTL_SUCCESS 0
+/* RMNET API encountered an error while executing within the library. Check the
+* error code in this case */
+#define RMNETCTL_LIB_ERR 1
+/* RMNET API encountered an error while executing in the kernel. Check the
+* error code in this case */
+#define RMNETCTL_KERNEL_ERR 2
+/* RMNET API encountered an error because of invalid arguments*/
+#define RMNETCTL_INVALID_ARG 3
+
+/* Flag to associate a network device*/
+#define RMNETCTL_DEVICE_ASSOCIATE 1
+/* Flag to unassociate a network device*/
+#define RMNETCTL_DEVICE_UNASSOCIATE 0
+/* Flag to create a new virtual network device*/
+#define RMNETCTL_NEW_VND 1
+/* Flag to free a new virtual network device*/
+#define RMNETCTL_FREE_VND 0
+/* Flag to add a new flow*/
+#define RMNETCTL_ADD_FLOW 1
+/* Flag to delete an existing flow*/
+#define RMNETCTL_DEL_FLOW 0
+
+enum rmnetctl_error_codes_e {
+ /* API succeeded. This should always be the first element. */
+ RMNETCTL_API_SUCCESS = 0,
+
+ RMNETCTL_API_FIRST_ERR = 1,
+ /* API failed because not enough memory to create buffer to send
+ * message */
+ RMNETCTL_API_ERR_REQUEST_INVALID = RMNETCTL_API_FIRST_ERR,
+ /* API failed because not enough memory to create buffer for the
+ * response message */
+ RMNETCTL_API_ERR_RESPONSE_INVALID = 2,
+ /* API failed because could not send the message to kernel */
+ RMNETCTL_API_ERR_MESSAGE_SEND = 3,
+ /* API failed because could not receive message from the kernel */
+ RMNETCTL_API_ERR_MESSAGE_RECEIVE = 4,
+
+ RMNETCTL_INIT_FIRST_ERR = 5,
+ /* Invalid process id. So return an error. */
+ RMNETCTL_INIT_ERR_PROCESS_ID = RMNETCTL_INIT_FIRST_ERR,
+ /* Invalid socket descriptor id. So return an error. */
+ RMNETCTL_INIT_ERR_NETLINK_FD = 6,
+ /* Could not bind the socket to the Netlink file descriptor */
+ RMNETCTL_INIT_ERR_BIND = 7,
+ /* Invalid user id. Only root has access to this function. (NA) */
+ RMNETCTL_INIT_ERR_INVALID_USER = 8,
+
+ RMNETCTL_API_SECOND_ERR = 9,
+ /* API failed because the RmNet handle for the transaction was NULL */
+ RMNETCTL_API_ERR_HNDL_INVALID = RMNETCTL_API_SECOND_ERR,
+ /* API failed because the request buffer for the transaction was NULL */
+ RMNETCTL_API_ERR_REQUEST_NULL = 10,
+ /* API failed because the response buffer for the transaction was NULL*/
+ RMNETCTL_API_ERR_RESPONSE_NULL = 11,
+ /* API failed because the request and response type do not match*/
+ RMNETCTL_API_ERR_MESSAGE_TYPE = 12,
+ /* API failed because the return type is invalid */
+ RMNETCTL_API_ERR_RETURN_TYPE = 13,
+ /* API failed because the string was truncated */
+ RMNETCTL_API_ERR_STRING_TRUNCATION = 14,
+
+ /* These error are 1-to-1 with rmnet_data config errors in rmnet_data.h
+ for each conversion.
+ please keep the enums synced.
+ */
+ RMNETCTL_KERNEL_FIRST_ERR = 15,
+ /* No error */
+ RMNETCTL_KERNEL_ERROR_NO_ERR = RMNETCTL_KERNEL_FIRST_ERR,
+ /* Invalid / unsupported message */
+ RMNETCTL_KERNEL_ERR_UNKNOWN_MESSAGE = 16,
+ /* Internal problem in the kernel module */
+ RMNETCTL_KERNEL_ERR_INTERNAL = 17,
+ /* Kernel is temporarily out of memory */
+ RMNETCTL_KERNEL_ERR_OUT_OF_MEM = 18,
+ /* Device already exists / Still in use */
+ RMETNCTL_KERNEL_ERR_DEVICE_IN_USE = 19,
+ /* Invalid request / Unsupported scenario */
+ RMNETCTL_KERNEL_ERR_INVALID_REQUEST = 20,
+ /* Device doesn't exist */
+ RMNETCTL_KERNEL_ERR_NO_SUCH_DEVICE = 21,
+ /* One or more of the arguments is invalid */
+ RMNETCTL_KERNEL_ERR_BAD_ARGS = 22,
+ /* Egress device is invalid */
+ RMNETCTL_KERNEL_ERR_BAD_EGRESS_DEVICE = 23,
+ /* TC handle is full */
+ RMNETCTL_KERNEL_ERR_TC_HANDLE_FULL = 24,
+
+ /* This should always be the last element */
+ RMNETCTL_API_ERR_ENUM_LENGTH
+};
+
+#define RMNETCTL_ERR_MSG_SIZE 100
+
+/*!
+* @brief Contains a list of error message from API
+*/
+char rmnetctl_error_code_text
+[RMNETCTL_API_ERR_ENUM_LENGTH][RMNETCTL_ERR_MSG_SIZE] = {
+ "ERROR: API succeeded\n",
+ "ERROR: Unable to allocate the buffer to send message\n",
+ "ERROR: Unable to allocate the buffer to receive message\n",
+ "ERROR: Could not send the message to kernel\n",
+ "ERROR: Unable to receive message from the kernel\n",
+ "ERROR: Invalid process id\n",
+ "ERROR: Invalid socket descriptor id\n",
+ "ERROR: Could not bind to netlink socket\n",
+ "ERROR: Only root can access this API\n",
+ "ERROR: RmNet handle for the transaction was NULL\n",
+ "ERROR: Request buffer for the transaction was NULL\n",
+ "ERROR: Response buffer for the transaction was NULL\n",
+ "ERROR: Request and response type do not match\n",
+ "ERROR: Return type is invalid\n",
+ "ERROR: String was truncated\n",
+ /* Kernel errors */
+ "ERROR: Kernel call succeeded\n",
+ "ERROR: Invalid / Unsupported directive\n",
+ "ERROR: Internal problem in the kernel module\n",
+ "ERROR: The kernel is temporarily out of memory\n",
+ "ERROR: Device already exists / Still in use\n",
+ "ERROR: Invalid request / Unsupported scenario\n",
+ "ERROR: Device doesn't exist\n",
+ "ERROR: One or more of the arguments is invalid\n",
+ "ERROR: Egress device is invalid\n",
+ "ERROR: TC handle is full\n"
+};
+
+/*===========================================================================
+ DEFINITIONS AND DECLARATIONS
+===========================================================================*/
+typedef struct rmnetctl_hndl_s rmnetctl_hndl_t;
+
+/*!
+* @brief Public API to initialize the RMNET control driver
+* @details Allocates memory for the RmNet handle. Creates and binds to a and
+* netlink socket if successful
+* @param **rmnetctl_hndl_t_val RmNet handle to be initialized
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnetctl_init(rmnetctl_hndl_t **hndl, uint16_t *error_code);
+
+/*!
+* @brief Public API to clean up the RmNeT control handle
+* @details Close the socket and free the RmNet handle
+* @param *rmnetctl_hndl_t_val RmNet handle to be initialized
+* @return void
+*/
+void rmnetctl_cleanup(rmnetctl_hndl_t *hndl);
+
+/*!
+* @brief Public API to register/unregister a RMNET driver on a particular device
+* @details Message type is RMNET_NETLINK_ASSOCIATE_NETWORK_DEVICE or
+* RMNET_NETLINK_UNASSOCIATE_NETWORK_DEVICE based on the flag for assoc_dev
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param dev_name Device on which to register the RmNet driver
+* @param error_code Status code of this operation
+* @param assoc_dev registers the device if RMNETCTL_DEVICE_ASSOCIATE or
+* unregisters the device if RMNETCTL_DEVICE_UNASSOCIATE
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_associate_network_device(rmnetctl_hndl_t *hndl,
+ const char *dev_name,
+ uint16_t *error_code,
+ uint8_t assoc_dev);
+
+/*!
+* @brief Public API to get if a RMNET driver is registered on a particular
+* device
+* @details Message type is RMNET_NETLINK_GET_NETWORK_DEVICE_ASSOCIATED.
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param dev_name Device on which to check if the RmNet driver is registered
+* @param register_status 1 if RmNet data driver is registered on a particular
+* device, 0 if not
+* @param error_code Status code of this operation
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_get_network_device_associated(rmnetctl_hndl_t *hndl,
+ const char *dev_name,
+ int *register_status,
+ uint16_t *error_code);
+
+/*!
+* @brief Public API to set the egress data format for a particular link.
+* @details Message type is RMNET_NETLINK_SET_LINK_EGRESS_DATA_FORMAT.
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param egress_flags Egress flags to be set on the device
+* @param agg_size Max size of aggregated packets
+* @param agg_count Number of packets to be aggregated
+* @param dev_name Device on which to set the egress data format
+* @param error_code Status code of this operation returned from the kernel
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_set_link_egress_data_format(rmnetctl_hndl_t *hndl,
+ uint32_t egress_flags,
+ uint16_t agg_size,
+ uint16_t agg_count,
+ const char *dev_name,
+ uint16_t *error_code);
+
+/*!
+* @brief Public API to get the egress data format for a particular link.
+* @details Message type is RMNET_NETLINK_GET_LINK_EGRESS_DATA_FORMAT.
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param dev_name Device on which to get the egress data format
+* @param egress_flags Egress flags from the device
+* @param agg_count Number of packets to be aggregated
+* @param error_code Status code of this operation returned from the kernel
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_get_link_egress_data_format(rmnetctl_hndl_t *hndl,
+ const char *dev_name,
+ uint32_t *egress_flags,
+ uint16_t *agg_size,
+ uint16_t *agg_count,
+ uint16_t *error_code);
+
+/*!
+* @brief Public API to set the ingress data format for a particular link.
+* @details Message type is RMNET_NETLINK_SET_LINK_INGRESS_DATA_FORMAT.
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param ingress_flags Ingress flags from the device
+* @param tail_spacing Tail spacing needed for the packet
+* @param dev_name Device on which to set the ingress data format
+* @param error_code Status code of this operation returned from the kernel
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_set_link_ingress_data_format_tailspace(rmnetctl_hndl_t *hndl,
+ uint32_t ingress_flags,
+ uint8_t tail_spacing,
+ const char *dev_name,
+ uint16_t *error_code);
+
+/*!
+* @brief Public API to get the ingress data format for a particular link.
+* @details Message type is RMNET_NETLINK_GET_LINK_INGRESS_DATA_FORMAT.
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param dev_name Device on which to get the ingress data format
+* @param ingress_flags Ingress flags from the device
+* @param tail_spacing Tail spacing needed for the packet
+* @param error_code Status code of this operation returned from the kernel
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_get_link_ingress_data_format_tailspace(rmnetctl_hndl_t *hndl,
+ const char *dev_name,
+ uint32_t *ingress_flags,
+ uint8_t *tail_spacing,
+ uint16_t *error_code);
+
+inline int rmnet_set_link_ingress_data_format(rmnetctl_hndl_t *hndl,
+ uint32_t ingress_flags,
+ const char *dev_name,
+ uint16_t *error_code)
+{
+ return rmnet_set_link_ingress_data_format_tailspace(hndl,
+ ingress_flags,
+ 0,
+ dev_name,
+ error_code);
+}
+
+inline int rmnet_get_link_ingress_data_format(rmnetctl_hndl_t *hndl,
+ const char *dev_name,
+ uint32_t *ingress_flags,
+ uint16_t *error_code)
+{
+ return rmnet_get_link_ingress_data_format_tailspace(hndl,
+ dev_name,
+ ingress_flags,
+ 0,
+ error_code);
+}
+
+/*!
+* @brief Public API to set the logical endpoint configuration for a
+* particular link.
+* @details Message type is RMNET_NETLINK_SET_LOGICAL_EP_CONFIG.
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param logical_ep_id Logical end point id on which the configuration is to be
+* set
+* @param rmnet_mode RmNet mode to be set on the device
+* @param dev_name Device on which to set the logical end point configuration
+* @param egress_dev_name Egress Device if operating in bridge mode
+* @param error_code Status code of this operation returned from the kernel
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_set_logical_ep_config(rmnetctl_hndl_t *hndl,
+ int32_t ep_id,
+ uint8_t operating_mode,
+ const char *dev_name,
+ const char *next_dev,
+ uint16_t *error_code);
+
+/*!
+* @brief Public API to un-set the logical endpoint configuration for a
+* particular link.
+* @details Message type is RMNET_NETLINK_UNSET_LOGICAL_EP_CONFIG.
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param logical_ep_id Logical end point id on which the configuration is to be
+* un-set
+* @param dev_name Device on which to un-set the logical end point configuration
+* @param error_code Status code of this operation returned from the kernel
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_unset_logical_ep_config(rmnetctl_hndl_t *hndl,
+ int32_t ep_id,
+ const char *dev_name,
+ uint16_t *error_code);
+/*!
+* @brief Public API to get the logical endpoint configuration for a
+* particular link.
+* @details Message type is RMNET_NETLINK_GET_LOGICAL_EP_CONFIG.
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param logical_ep_id Logical end point id from which to get the configuration
+* @param dev_name Device on which to get the logical end point configuration
+* @param rmnet_mode RmNet mode from the device
+* @param next_dev Egress Device name
+* @param next_dev_len Egress Device I/O string len
+* @param error_code Status code of this operation returned from the kernel
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_get_logical_ep_config(rmnetctl_hndl_t *hndl,
+ int32_t ep_id,
+ const char *dev_name,
+ uint8_t *operating_mode,
+ char **next_dev,
+ uint32_t next_dev_len,
+ uint16_t *error_code);
+
+/*!
+* @brief Public API to create a new virtual device node
+* @details Message type is RMNET_NETLINK_NEW_VND or
+* RMNETCTL_FREE_VND based on the flag for new_vnd
+* @param hndl RmNet handle for the Netlink message
+* @param id Node number to create the virtual network device node
+* @param error_code Status code of this operation returned from the kernel
+* @param new_vnd creates a new virtual network device if RMNETCTL_NEW_VND or
+* frees the device if RMNETCTL_FREE_VND
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_new_vnd(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint16_t *error_code,
+ uint8_t new_vnd);
+
+/*!
+ * @brief Public API to create a new virtual device node with a custom prefix
+ * @details Message type is RMNET_NETLINK_NEW_VND or
+ * RMNETCTL_FREE_VND based on the flag for new_vnd
+ * @param hndl RmNet handle for the Netlink message
+ * @param id Node number to create the virtual network device node
+ * @param error_code Status code of this operation returned from the kernel
+ * @param new_vnd creates a new virtual network device if RMNETCTL_NEW_VND or
+ * frees the device if RMNETCTL_FREE_VND
+ * @param prefix Prefix to be used when naming the network interface
+ * @return RMNETCTL_SUCCESS if successful
+ * @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+ * @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+ * Check error_code
+ * @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+ */
+int rmnet_new_vnd_prefix(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint16_t *error_code,
+ uint8_t new_vnd,
+ const char *prefix);
+
+/*!
+ * @brief Public API to create a new virtual device node with a custom prefix
+ * @details Message type is RMNET_NETLINK_NEW_VND or
+ * RMNETCTL_FREE_VND based on the flag for new_vnd
+ * @param hndl RmNet handle for the Netlink message
+ * @param id Node number to create the virtual network device node
+ * @param error_code Status code of this operation returned from the kernel
+ * @param new_vnd creates a new virtual network device if RMNETCTL_NEW_VND or
+ * frees the device if RMNETCTL_FREE_VND
+ * @param name Name to be used when naming the network interface
+ * @return RMNETCTL_SUCCESS if successful
+ * @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+ * @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+ * Check error_code
+ * @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+ */
+int rmnet_new_vnd_name(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint16_t *error_code,
+ const char *name);
+
+/*!
+ * @brief API to get the ASCII name of a virtual network device from its ID
+ * @param hndl RmNet handle for the Netlink message
+ * @param id Node number to create the virtual network device node
+ * @param error_code Status code of this operation returned from the kernel
+ * @param buf Buffer to store ASCII representation of device name
+ * @param buflen Length of the buffer
+ * @param prefix Prefix to be used when naming the network interface
+ * @return RMNETCTL_SUCCESS if successful
+ * @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+ * @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+ * Check error_code
+ * @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+ */
+
+int rmnet_get_vnd_name(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint16_t *error_code,
+ char *buf,
+ uint32_t buflen);
+
+/*!
+* @brief Public API to set or clear a flow
+* @details Message type is RMNET_NETLINK_ADD_VND_TC_FLOW or
+* RMNET_NETLINK_DEL_VND_TC_FLOW based on the flag for set_flow
+* @param *rmnetctl_hndl_t_val RmNet handle for the Netlink message
+* @param id Node number to set or clear the flow on the virtual network
+* device node
+* @param map_flow_id Flow handle of the modem
+* @param tc_flow_id Software flow handle
+* @param set_flow sets the flow if RMNET_NETLINK_SET_FLOW or
+* clears the flow if RMNET_NETLINK_CLEAR_FLOW
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+int rmnet_add_del_vnd_tc_flow(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint32_t map_flow_id,
+ uint32_t tc_flow_id,
+ uint8_t set_flow,
+ uint16_t *error_code);
+
+/* @brief Public API to initialize the RTM_NETLINK RMNET control driver
+ * @details Allocates memory for the RmNet handle. Creates and binds to a
+ * netlink socket if successful
+ * @param **rmnetctl_hndl_t_val RmNet handle to be initialized
+ * @return RMNETCTL_SUCCESS if successful
+ * @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+ * @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+ * Check error_code
+ * @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+ */
+int rtrmnet_ctl_init(rmnetctl_hndl_t **hndl, uint16_t *error_code);
+
+/* @brief Public API to clean up the RTM_NETLINK RmNeT control handle
+ * @details Close the socket and free the RmNet handle
+ * @param *rmnetctl_hndl_t_val RmNet handle to be initialized
+ * @return void
+ */
+int rtrmnet_ctl_deinit(rmnetctl_hndl_t *hndl);
+
+/* @brief Public API to create a new virtual device node
+ * @details Message type is RTM_NEWLINK
+ * @param hndl RmNet handle for the Netlink message
+ * @param dev_name Device name new node will be connected to
+ * @param vnd_name Name of virtual device to be created
+ * @param error_code Status code of this operation returned from the kernel
+ * @param index Index node will have
+ * @param flagconfig Flag configuration device will have
+ * @return RMNETCTL_SUCCESS if successful
+ * @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+ * @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+ * Check error_code
+ * @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+ */
+int rtrmnet_ctl_newvnd(rmnetctl_hndl_t *hndl, char *devname, char *vndname,
+ uint16_t *error_code, uint8_t index,
+ uint32_t flagconfig);
+
+/* @brief Public API to delete a virtual device node
+ * @details Message type is RTM_DELLINK
+ * @param hndl RmNet handle for the Netlink message
+ * @param vnd_name Name of virtual device to be deleted
+ * @param error_code Status code of this operation returned from the kernel
+ * @return RMNETCTL_SUCCESS if successful
+ * @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+ * @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+ * Check error_code
+ * @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+ */
+int rtrmnet_ctl_delvnd(rmnetctl_hndl_t *hndl, char *vndname,
+ uint16_t *error_code);
+
+/* @brief Public API to change flag's of a virtual device node
+ * @details Message type is RTM_NEWLINK
+ * @param hndl RmNet handle for the Netlink message
+ * @param dev_name Name of device node is connected to
+ * @param vnd_name Name of virtual device to be changed
+ * @param error_code Status code of this operation returned from the kernel
+ * @param flagconfig New flag config vnd should have
+ * @return RMNETCTL_SUCCESS if successful
+ * @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+ * @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+ * Check error_code
+ * @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+ */
+int rtrmnet_ctl_changevnd(rmnetctl_hndl_t *hndl, char *devname, char *vndname,
+ uint16_t *error_code, uint8_t index,
+ uint32_t flagconfig);
+
+/* @brief Public API to bridge a vnd and device
+ * @details Message type is RTM_NEWLINK
+ * @param hndl RmNet handle for the Netlink message
+ * @param dev_name device to bridge msg will be sent to
+ * @param vnd_name vnd name of device that will be dev_name's master
+ * @param error_code Status code of this operation returned from the kernel
+ * @return RMNETCTL_SUCCESS if successful
+ * @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+ * @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+ * Check error_code
+ * @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+ */
+int rtrmnet_ctl_bridgevnd(rmnetctl_hndl_t *hndl, char *devname, char *vndname,
+ uint16_t *error_code);
+
+#endif /* not defined LIBRMNETCTL_H */
+
diff --git a/rmnetlib/inc/librmnetctl_hndl.h b/rmnetlib/inc/librmnetctl_hndl.h
new file mode 100644
index 0000000..1a435ed
--- /dev/null
+++ b/rmnetlib/inc/librmnetctl_hndl.h
@@ -0,0 +1,65 @@
+/******************************************************************************
+
+ L I B R M N E T C T L _ H N D L. H
+
+Copyright (c) 2013, 2015 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.
+
+******************************************************************************/
+
+/*!
+* @file librmnetctl_hndl.h
+* @brief rmnet control API's handle file
+*/
+
+#ifndef LIBRMNETCTL_HNDL_H
+#define LIBRMNETCTL_HNDL_H
+
+/*===========================================================================
+ DEFINITIONS AND DECLARATIONS
+===========================================================================*/
+
+/*!
+* @brief Structure for RMNET control handles. A rmnet hndl contains the caller
+* process id, the transaction id which is initialized to 0 for each new
+* initialized handle and the netlink file descriptor for this handle.
+* @var pid process id to be used for the netlink message
+* @var transaction_id message number for debugging
+* @var netlink_fd netlink file descriptor to be used
+* @var src_addr source socket address properties for this message
+* @var dest_addr destination socket address properties for this message
+*/
+
+struct rmnetctl_hndl_s {
+ uint32_t pid;
+ uint32_t transaction_id;
+ int netlink_fd;
+ struct sockaddr_nl src_addr, dest_addr;
+};
+
+#endif /* not defined LIBRMNETCTL_HNDL_H */
+
diff --git a/rmnetlib/src/Makefile.am b/rmnetlib/src/Makefile.am
new file mode 100644
index 0000000..7bd53b7
--- /dev/null
+++ b/rmnetlib/src/Makefile.am
@@ -0,0 +1,14 @@
+AM_CFLAGS = $(CODE_COVERAGE_CFLAGS)
+AM_CFLAGS += -Wall -Werror -Wundef -Wstrict-prototypes -Wno-trigraphs -g
+AM_CFLAGS += -I./../inc
+AM_LDFLAGS = $(CODE_COVERAGE_LDFLAGS)
+
+librmnetctl_la_C = @C@
+librmnetctl_la_SOURCES = librmnetctl.c
+
+librmnetctl_la_CFLAGS := $(AM_CFLAGS)
+librmnetctl_la_LDFLAGS := $(AM_LDFLAGS) -lpthread
+library_includedir = $(pkgincludedir)
+library_include_HEADERS = ./../inc/librmnetctl.h
+
+lib_LTLIBRARIES = librmnetctl.la
diff --git a/rmnetlib/src/librmnetctl.c b/rmnetlib/src/librmnetctl.c
new file mode 100644
index 0000000..4e07376
--- /dev/null
+++ b/rmnetlib/src/librmnetctl.c
@@ -0,0 +1,1369 @@
+/******************************************************************************
+
+ L I B R M N E T C T L . C
+
+Copyright (c) 2013-2015, 2017-2018 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.
+
+******************************************************************************/
+
+/*!
+* @file librmnetctl.c
+* @brief rmnet control API's implementation file
+*/
+
+/*===========================================================================
+ INCLUDE FILES
+===========================================================================*/
+
+#include <sys/socket.h>
+#include <stdint.h>
+#include <linux/netlink.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <linux/rtnetlink.h>
+#include <linux/gen_stats.h>
+#include <net/if.h>
+#include <asm/types.h>
+#include "rmnet_data.h"
+#include "librmnetctl_hndl.h"
+#include "librmnetctl.h"
+
+#ifdef USE_GLIB
+#include <glib.h>
+#define strlcpy g_strlcpy
+#endif
+
+#define RMNETCTL_SOCK_FLAG 0
+#define ROOT_USER_ID 0
+#define MIN_VALID_PROCESS_ID 0
+#define MIN_VALID_SOCKET_FD 0
+#define KERNEL_PROCESS_ID 0
+#define UNICAST 0
+#define MAX_BUF_SIZE sizeof(struct nlmsghdr) + sizeof(struct rmnet_nl_msg_s)
+#define INGRESS_FLAGS_MASK (RMNET_INGRESS_FIX_ETHERNET | \
+ RMNET_INGRESS_FORMAT_MAP | \
+ RMNET_INGRESS_FORMAT_DEAGGREGATION | \
+ RMNET_INGRESS_FORMAT_DEMUXING | \
+ RMNET_INGRESS_FORMAT_MAP_COMMANDS | \
+ RMNET_INGRESS_FORMAT_MAP_CKSUMV3 | \
+ RMNET_INGRESS_FORMAT_MAP_CKSUMV4)
+#define EGRESS_FLAGS_MASK (RMNET_EGRESS_FORMAT__RESERVED__ | \
+ RMNET_EGRESS_FORMAT_MAP | \
+ RMNET_EGRESS_FORMAT_AGGREGATION | \
+ RMNET_EGRESS_FORMAT_MUXING | \
+ RMNET_EGRESS_FORMAT_MAP_CKSUMV3 | \
+ RMNET_EGRESS_FORMAT_MAP_CKSUMV4)
+
+#define min(a, b) (((a) < (b)) ? (a) : (b))
+#define NLMSG_TAIL(nmsg) \
+ ((struct rtattr *) (((char *)(nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
+
+struct nlmsg {
+ struct nlmsghdr nl_addr;
+ struct ifinfomsg ifmsg;
+ char data[500];
+};
+
+extern size_t strlcpy(char *dst, const char *src, size_t dsize);
+
+/*===========================================================================
+ LOCAL FUNCTION DEFINITIONS
+===========================================================================*/
+/*!
+* @brief Synchronous method to send and receive messages to and from the kernel
+* using netlink sockets
+* @details Increments the transaction id for each message sent to the kernel.
+* Sends the netlink message to the kernel and receives the response from the
+* kernel.
+* @param *hndl RmNet handle for this transaction
+* @param request Message to be sent to the kernel
+* @param response Message received from the kernel
+* @return RMNETCTL_API_SUCCESS if successfully able to send and receive message
+* from the kernel
+* @return RMNETCTL_API_ERR_HNDL_INVALID if RmNet handle for the transaction was
+* NULL
+* @return RMNETCTL_API_ERR_REQUEST_NULL not enough memory to create buffer for
+* sending the message
+* @return RMNETCTL_API_ERR_MESSAGE_SEND if could not send the message to kernel
+* @return RMNETCTL_API_ERR_MESSAGE_RECEIVE if could not receive message from the
+* kernel
+* @return RMNETCTL_API_ERR_MESSAGE_TYPE if the request and response type do not
+* match
+*/
+static uint16_t rmnetctl_transact(rmnetctl_hndl_t *hndl,
+ struct rmnet_nl_msg_s *request,
+ struct rmnet_nl_msg_s *response) {
+ uint8_t *request_buf, *response_buf;
+ struct nlmsghdr *nlmsghdr_val;
+ struct rmnet_nl_msg_s *rmnet_nl_msg_s_val;
+ ssize_t bytes_read = -1;
+ uint16_t return_code = RMNETCTL_API_ERR_HNDL_INVALID;
+ struct sockaddr_nl* __attribute__((__may_alias__)) saddr_ptr;
+ socklen_t addrlen = sizeof(struct sockaddr_nl);
+ request_buf = NULL;
+ response_buf = NULL;
+ nlmsghdr_val = NULL;
+ rmnet_nl_msg_s_val = NULL;
+ do {
+ if (!hndl){
+ break;
+ }
+ if (!request){
+ return_code = RMNETCTL_API_ERR_REQUEST_NULL;
+ break;
+ }
+ if (!response){
+ return_code = RMNETCTL_API_ERR_RESPONSE_NULL;
+ break;
+ }
+ request_buf = (uint8_t *)malloc(MAX_BUF_SIZE * sizeof(uint8_t));
+ if (!request_buf){
+ return_code = RMNETCTL_API_ERR_REQUEST_NULL;
+ break;
+ }
+
+ response_buf = (uint8_t *)malloc(MAX_BUF_SIZE * sizeof(uint8_t));
+ if (!response_buf) {
+ return_code = RMNETCTL_API_ERR_RESPONSE_NULL;
+ break;
+ }
+
+ nlmsghdr_val = (struct nlmsghdr *)request_buf;
+ rmnet_nl_msg_s_val = (struct rmnet_nl_msg_s *)NLMSG_DATA(request_buf);
+
+ memset(request_buf, 0, MAX_BUF_SIZE*sizeof(uint8_t));
+ memset(response_buf, 0, MAX_BUF_SIZE*sizeof(uint8_t));
+
+ nlmsghdr_val->nlmsg_seq = hndl->transaction_id;
+ nlmsghdr_val->nlmsg_pid = hndl->pid;
+ nlmsghdr_val->nlmsg_len = MAX_BUF_SIZE;
+
+ memcpy((void *)NLMSG_DATA(request_buf), request,
+ sizeof(struct rmnet_nl_msg_s));
+
+ rmnet_nl_msg_s_val->crd = RMNET_NETLINK_MSG_COMMAND;
+ hndl->transaction_id++;
+
+ saddr_ptr = &hndl->dest_addr;
+ if (sendto(hndl->netlink_fd,
+ request_buf,
+ MAX_BUF_SIZE,
+ RMNETCTL_SOCK_FLAG,
+ (struct sockaddr*)saddr_ptr,
+ sizeof(struct sockaddr_nl)) < 0) {
+ return_code = RMNETCTL_API_ERR_MESSAGE_SEND;
+ break;
+ }
+
+ saddr_ptr = &hndl->src_addr;
+ bytes_read = recvfrom(hndl->netlink_fd,
+ response_buf,
+ MAX_BUF_SIZE,
+ RMNETCTL_SOCK_FLAG,
+ (struct sockaddr*)saddr_ptr,
+ &addrlen);
+ if (bytes_read < 0) {
+ return_code = RMNETCTL_API_ERR_MESSAGE_RECEIVE;
+ break;
+ }
+
+ memcpy(response, (void *)NLMSG_DATA(response_buf),
+ sizeof(struct rmnet_nl_msg_s));
+ if (sizeof(*response) < sizeof(struct rmnet_nl_msg_s)) {
+ return_code = RMNETCTL_API_ERR_RESPONSE_NULL;
+ break;
+ }
+
+ if (request->message_type != response->message_type) {
+ return_code = RMNETCTL_API_ERR_MESSAGE_TYPE;
+ break;
+ }
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ free(request_buf);
+ free(response_buf);
+ return return_code;
+}
+
+/*!
+* @brief Static function to check the dev name
+* @details Checks if the name is not NULL and if the name is less than the
+* RMNET_MAX_STR_LEN
+* @param dev_name Name of the device
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_INVALID_ARG if invalid arguments were passed to the API
+*/
+static inline int _rmnetctl_check_dev_name(const char *dev_name) {
+ int return_code = RMNETCTL_INVALID_ARG;
+ do {
+ if (!dev_name)
+ break;
+ if (strlen(dev_name) >= RMNET_MAX_STR_LEN)
+ break;
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ return return_code;
+}
+
+/*!
+* @brief Static function to check the string length after a copy
+* @details Checks if the string length is not lesser than zero and lesser than
+* RMNET_MAX_STR_LEN
+* @param str_len length of the string after a copy
+* @param error_code Status code of this operation
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+*/
+static inline int _rmnetctl_check_len(size_t str_len, uint16_t *error_code) {
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if (str_len > RMNET_MAX_STR_LEN) {
+ *error_code = RMNETCTL_API_ERR_STRING_TRUNCATION;
+ break;
+ }
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ return return_code;
+}
+
+/*!
+* @brief Static function to check the response type
+* @details Checks if the response type of this message was return code
+* @param crd The crd field passed
+* @param error_code Status code of this operation
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+*/
+static inline int _rmnetctl_check_code(int crd, uint16_t *error_code) {
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if (crd != RMNET_NETLINK_MSG_RETURNCODE) {
+ *error_code = RMNETCTL_API_ERR_RETURN_TYPE;
+ break;
+ }
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ return return_code;
+}
+
+/*!
+* @brief Static function to check the response type
+* @details Checks if the response type of this message was data
+* @param crd The crd field passed
+* @param error_code Status code of this operation
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_LIB_ERR if there was a library error. Check error_code
+*/
+static inline int _rmnetctl_check_data(int crd, uint16_t *error_code) {
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if (crd != RMNET_NETLINK_MSG_RETURNDATA) {
+ *error_code = RMNETCTL_API_ERR_RETURN_TYPE;
+ break;
+ }
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ return return_code;
+}
+
+/*!
+* @brief Static function to set the return value
+* @details Checks if the error_code from the transaction is zero for a return
+* code type message and sets the message type as RMNETCTL_SUCCESS
+* @param crd The crd field passed
+* @param error_code Status code of this operation
+* @return RMNETCTL_SUCCESS if successful
+* @return RMNETCTL_KERNEL_ERR if there was an error in the kernel.
+* Check error_code
+*/
+static inline int _rmnetctl_set_codes(int error_val, uint16_t *error_code) {
+ int return_code = RMNETCTL_KERNEL_ERR;
+ if (error_val == RMNET_CONFIG_OK)
+ return_code = RMNETCTL_SUCCESS;
+ else
+ *error_code = (uint16_t)error_val + RMNETCTL_KERNEL_FIRST_ERR;
+ return return_code;
+}
+
+/*===========================================================================
+ EXPOSED API
+===========================================================================*/
+
+int rmnetctl_init(rmnetctl_hndl_t **hndl, uint16_t *error_code)
+{
+ pid_t pid = 0;
+ int netlink_fd = -1, return_code = RMNETCTL_LIB_ERR;
+ struct sockaddr_nl* __attribute__((__may_alias__)) saddr_ptr;
+ do {
+ if ((!hndl) || (!error_code)){
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ *hndl = (rmnetctl_hndl_t *)malloc(sizeof(rmnetctl_hndl_t));
+ if (!*hndl) {
+ *error_code = RMNETCTL_API_ERR_HNDL_INVALID;
+ break;
+ }
+
+ memset(*hndl, 0, sizeof(rmnetctl_hndl_t));
+
+ pid = getpid();
+ if (pid < MIN_VALID_PROCESS_ID) {
+ free(*hndl);
+ *error_code = RMNETCTL_INIT_ERR_PROCESS_ID;
+ break;
+ }
+ (*hndl)->pid = (uint32_t)pid;
+ netlink_fd = socket(PF_NETLINK, SOCK_RAW, RMNET_NETLINK_PROTO);
+ if (netlink_fd < MIN_VALID_SOCKET_FD) {
+ free(*hndl);
+ *error_code = RMNETCTL_INIT_ERR_NETLINK_FD;
+ break;
+ }
+
+ (*hndl)->netlink_fd = netlink_fd;
+
+ memset(&(*hndl)->src_addr, 0, sizeof(struct sockaddr_nl));
+
+ (*hndl)->src_addr.nl_family = AF_NETLINK;
+ (*hndl)->src_addr.nl_pid = (*hndl)->pid;
+
+ saddr_ptr = &(*hndl)->src_addr;
+ if (bind((*hndl)->netlink_fd,
+ (struct sockaddr*)saddr_ptr,
+ sizeof(struct sockaddr_nl)) < 0) {
+ close((*hndl)->netlink_fd);
+ free(*hndl);
+ *error_code = RMNETCTL_INIT_ERR_BIND;
+ break;
+ }
+
+ memset(&(*hndl)->dest_addr, 0, sizeof(struct sockaddr_nl));
+
+ (*hndl)->dest_addr.nl_family = AF_NETLINK;
+ (*hndl)->dest_addr.nl_pid = KERNEL_PROCESS_ID;
+ (*hndl)->dest_addr.nl_groups = UNICAST;
+
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ return return_code;
+}
+
+void rmnetctl_cleanup(rmnetctl_hndl_t *hndl)
+{
+ if (!hndl)
+ return;
+ close(hndl->netlink_fd);
+ free(hndl);
+}
+
+int rmnet_associate_network_device(rmnetctl_hndl_t *hndl,
+ const char *dev_name,
+ uint16_t *error_code,
+ uint8_t assoc_dev)
+{
+ struct rmnet_nl_msg_s request, response;
+ size_t str_len = 0;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || (!error_code) || _rmnetctl_check_dev_name(dev_name) ||
+ ((assoc_dev != RMNETCTL_DEVICE_ASSOCIATE) &&
+ (assoc_dev != RMNETCTL_DEVICE_UNASSOCIATE))) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ if (assoc_dev == RMNETCTL_DEVICE_ASSOCIATE)
+ request.message_type = RMNET_NETLINK_ASSOCIATE_NETWORK_DEVICE;
+ else
+ request.message_type = RMNET_NETLINK_UNASSOCIATE_NETWORK_DEVICE;
+
+ request.arg_length = RMNET_MAX_STR_LEN;
+ str_len = strlcpy((char *)(request.data), dev_name, (size_t)RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+ if (_rmnetctl_check_code(response.crd, error_code) != RMNETCTL_SUCCESS)
+ break;
+ return_code = _rmnetctl_set_codes(response.return_code, error_code);
+ } while(0);
+ return return_code;
+}
+
+int rmnet_get_network_device_associated(rmnetctl_hndl_t *hndl,
+ const char *dev_name,
+ int *register_status,
+ uint16_t *error_code) {
+ struct rmnet_nl_msg_s request, response;
+ size_t str_len = 0;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || (!register_status) || (!error_code) ||
+ _rmnetctl_check_dev_name(dev_name)) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ request.message_type = RMNET_NETLINK_GET_NETWORK_DEVICE_ASSOCIATED;
+
+ request.arg_length = RMNET_MAX_STR_LEN;
+ str_len = strlcpy((char *)(request.data), dev_name, RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+
+ if (_rmnetctl_check_data(response.crd, error_code)
+ != RMNETCTL_SUCCESS) {
+ if (_rmnetctl_check_code(response.crd, error_code)
+ == RMNETCTL_SUCCESS)
+ return_code = _rmnetctl_set_codes(response.return_code,
+ error_code);
+ break;
+ }
+
+ *register_status = response.return_code;
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ return return_code;
+}
+
+int rmnet_set_link_egress_data_format(rmnetctl_hndl_t *hndl,
+ uint32_t egress_flags,
+ uint16_t agg_size,
+ uint16_t agg_count,
+ const char *dev_name,
+ uint16_t *error_code) {
+ struct rmnet_nl_msg_s request, response;
+ size_t str_len = 0;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || (!error_code) || _rmnetctl_check_dev_name(dev_name) ||
+ ((~EGRESS_FLAGS_MASK) & egress_flags)) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ request.message_type = RMNET_NETLINK_SET_LINK_EGRESS_DATA_FORMAT;
+
+ request.arg_length = RMNET_MAX_STR_LEN +
+ sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t);
+ str_len = strlcpy((char *)(request.data_format.dev),
+ dev_name,
+ RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ request.data_format.flags = egress_flags;
+ request.data_format.agg_size = agg_size;
+ request.data_format.agg_count = agg_count;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+
+ if (_rmnetctl_check_code(response.crd, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ return_code = _rmnetctl_set_codes(response.return_code, error_code);
+ } while(0);
+ return return_code;
+}
+
+int rmnet_get_link_egress_data_format(rmnetctl_hndl_t *hndl,
+ const char *dev_name,
+ uint32_t *egress_flags,
+ uint16_t *agg_size,
+ uint16_t *agg_count,
+ uint16_t *error_code) {
+ struct rmnet_nl_msg_s request, response;
+ size_t str_len = 0;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || (!egress_flags) || (!agg_size) || (!agg_count) ||
+ (!error_code) || _rmnetctl_check_dev_name(dev_name)) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+ request.message_type = RMNET_NETLINK_GET_LINK_EGRESS_DATA_FORMAT;
+
+ request.arg_length = RMNET_MAX_STR_LEN;
+ str_len = strlcpy((char *)(request.data_format.dev),
+ dev_name,
+ RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+
+ if (_rmnetctl_check_data(response.crd, error_code)
+ != RMNETCTL_SUCCESS) {
+ if (_rmnetctl_check_code(response.crd, error_code)
+ == RMNETCTL_SUCCESS)
+ return_code = _rmnetctl_set_codes(response.return_code,
+ error_code);
+ break;
+ }
+
+ *egress_flags = response.data_format.flags;
+ *agg_size = response.data_format.agg_size;
+ *agg_count = response.data_format.agg_count;
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ return return_code;
+}
+
+int rmnet_set_link_ingress_data_format_tailspace(rmnetctl_hndl_t *hndl,
+ uint32_t ingress_flags,
+ uint8_t tail_spacing,
+ const char *dev_name,
+ uint16_t *error_code) {
+ struct rmnet_nl_msg_s request, response;
+ size_t str_len = 0;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || (!error_code) || _rmnetctl_check_dev_name(dev_name) ||
+ ((~INGRESS_FLAGS_MASK) & ingress_flags)) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ request.message_type = RMNET_NETLINK_SET_LINK_INGRESS_DATA_FORMAT;
+
+ request.arg_length = RMNET_MAX_STR_LEN +
+ sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t);
+ str_len = strlcpy((char *)(request.data_format.dev),
+ dev_name,
+ RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+ request.data_format.flags = ingress_flags;
+ request.data_format.tail_spacing = tail_spacing;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+
+ if (_rmnetctl_check_code(response.crd, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ return_code = _rmnetctl_set_codes(response.return_code, error_code);
+ } while(0);
+ return return_code;
+}
+
+int rmnet_get_link_ingress_data_format_tailspace(rmnetctl_hndl_t *hndl,
+ const char *dev_name,
+ uint32_t *ingress_flags,
+ uint8_t *tail_spacing,
+ uint16_t *error_code) {
+ struct rmnet_nl_msg_s request, response;
+ size_t str_len = 0;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || (!error_code) ||
+ _rmnetctl_check_dev_name(dev_name)) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ request.message_type = RMNET_NETLINK_GET_LINK_INGRESS_DATA_FORMAT;
+
+ request.arg_length = RMNET_MAX_STR_LEN;
+ str_len = strlcpy((char *)(request.data_format.dev),
+ dev_name,
+ RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+
+ if (_rmnetctl_check_data(response.crd, error_code)
+ != RMNETCTL_SUCCESS) {
+ if (_rmnetctl_check_code(response.crd, error_code)
+ == RMNETCTL_SUCCESS)
+ return_code = _rmnetctl_set_codes(response.return_code,
+ error_code);
+ break;
+ }
+
+ if (ingress_flags)
+ *ingress_flags = response.data_format.flags;
+
+ if (tail_spacing)
+ *tail_spacing = response.data_format.tail_spacing;
+
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ return return_code;
+}
+
+int rmnet_set_logical_ep_config(rmnetctl_hndl_t *hndl,
+ int32_t ep_id,
+ uint8_t operating_mode,
+ const char *dev_name,
+ const char *next_dev,
+ uint16_t *error_code) {
+ struct rmnet_nl_msg_s request, response;
+ size_t str_len = 0;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || ((ep_id < -1) || (ep_id > 31)) || (!error_code) ||
+ _rmnetctl_check_dev_name(dev_name) ||
+ _rmnetctl_check_dev_name(next_dev) ||
+ operating_mode >= RMNET_EPMODE_LENGTH) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ request.message_type = RMNET_NETLINK_SET_LOGICAL_EP_CONFIG;
+
+ request.arg_length = RMNET_MAX_STR_LEN +
+ RMNET_MAX_STR_LEN + sizeof(int32_t) + sizeof(uint8_t);
+ str_len = strlcpy((char *)(request.local_ep_config.dev),
+ dev_name,
+ RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ str_len = strlcpy((char *)(request.local_ep_config.next_dev),
+ next_dev,
+ RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+ request.local_ep_config.ep_id = ep_id;
+ request.local_ep_config.operating_mode = operating_mode;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+ if (_rmnetctl_check_code(response.crd, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ return_code = _rmnetctl_set_codes(response.return_code, error_code);
+ } while(0);
+ return return_code;
+}
+
+int rmnet_unset_logical_ep_config(rmnetctl_hndl_t *hndl,
+ int32_t ep_id,
+ const char *dev_name,
+ uint16_t *error_code) {
+ struct rmnet_nl_msg_s request, response;
+ size_t str_len = 0;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+
+ if ((!hndl) || ((ep_id < -1) || (ep_id > 31)) || (!error_code) ||
+ _rmnetctl_check_dev_name(dev_name)) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ request.message_type = RMNET_NETLINK_UNSET_LOGICAL_EP_CONFIG;
+
+ request.arg_length = RMNET_MAX_STR_LEN + sizeof(int32_t);
+ str_len = strlcpy((char *)(request.local_ep_config.dev),
+ dev_name,
+ RMNET_MAX_STR_LEN);
+
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ request.local_ep_config.ep_id = ep_id;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+ if (_rmnetctl_check_code(response.crd, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ return_code = _rmnetctl_set_codes(response.return_code, error_code);
+ } while(0);
+
+ return return_code;
+}
+
+int rmnet_get_logical_ep_config(rmnetctl_hndl_t *hndl,
+ int32_t ep_id,
+ const char *dev_name,
+ uint8_t *operating_mode,
+ char **next_dev,
+ uint32_t next_dev_len,
+ uint16_t *error_code) {
+ struct rmnet_nl_msg_s request, response;
+ size_t str_len = 0;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || (!operating_mode) || (!error_code) || ((ep_id < -1) ||
+ (ep_id > 31)) || _rmnetctl_check_dev_name(dev_name) || (!next_dev)
+ || (0 == next_dev_len)) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ request.message_type = RMNET_NETLINK_GET_LOGICAL_EP_CONFIG;
+
+ request.arg_length = RMNET_MAX_STR_LEN + sizeof(int32_t);
+ str_len = strlcpy((char *)(request.local_ep_config.dev),
+ dev_name,
+ RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ request.local_ep_config.ep_id = ep_id;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+
+ if (_rmnetctl_check_data(response.crd, error_code)
+ != RMNETCTL_SUCCESS) {
+ if (_rmnetctl_check_code(response.crd, error_code)
+ == RMNETCTL_SUCCESS)
+ return_code = _rmnetctl_set_codes(response.return_code,
+ error_code);
+ break;
+ }
+
+ str_len = strlcpy(*next_dev,
+ (char *)(response.local_ep_config.next_dev),
+ min(RMNET_MAX_STR_LEN, next_dev_len));
+ if (_rmnetctl_check_len(str_len, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ *operating_mode = response.local_ep_config.operating_mode;
+ return_code = RMNETCTL_SUCCESS;
+ } while(0);
+ return return_code;
+}
+
+int rmnet_new_vnd_prefix(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint16_t *error_code,
+ uint8_t new_vnd,
+ const char *prefix)
+{
+ struct rmnet_nl_msg_s request, response;
+ int return_code = RMNETCTL_LIB_ERR;
+ size_t str_len = 0;
+ do {
+ if ((!hndl) || (!error_code) ||
+ ((new_vnd != RMNETCTL_NEW_VND) && (new_vnd != RMNETCTL_FREE_VND))) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ memset(request.vnd.vnd_name, 0, RMNET_MAX_STR_LEN);
+ if (new_vnd == RMNETCTL_NEW_VND) {
+ if (prefix) {
+ request.message_type =RMNET_NETLINK_NEW_VND_WITH_PREFIX;
+ str_len = strlcpy((char *)request.vnd.vnd_name,
+ prefix, RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code)
+ != RMNETCTL_SUCCESS)
+ break;
+ } else {
+ request.message_type = RMNET_NETLINK_NEW_VND;
+ }
+ } else {
+ request.message_type = RMNET_NETLINK_FREE_VND;
+ }
+
+ request.arg_length = sizeof(uint32_t);
+ request.vnd.id = id;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+ if (_rmnetctl_check_code(response.crd, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ return_code = _rmnetctl_set_codes(response.return_code, error_code);
+ } while(0);
+ return return_code;
+}
+
+int rmnet_new_vnd_name(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint16_t *error_code,
+ const char *prefix)
+{
+ struct rmnet_nl_msg_s request, response;
+ int return_code = RMNETCTL_LIB_ERR;
+ size_t str_len = 0;
+ do {
+ if ((!hndl) || (!error_code)) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ memset(request.vnd.vnd_name, 0, RMNET_MAX_STR_LEN);
+ if (prefix) {
+ request.message_type =RMNET_NETLINK_NEW_VND_WITH_NAME;
+ str_len = strlcpy((char *)request.vnd.vnd_name,
+ prefix, RMNET_MAX_STR_LEN);
+ if (_rmnetctl_check_len(str_len, error_code)
+ != RMNETCTL_SUCCESS)
+ break;
+ } else {
+ request.message_type = RMNET_NETLINK_NEW_VND;
+ }
+
+ request.arg_length = sizeof(uint32_t);
+ request.vnd.id = id;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+ if (_rmnetctl_check_code(response.crd, error_code) != RMNETCTL_SUCCESS)
+ break;
+
+ return_code = _rmnetctl_set_codes(response.return_code, error_code);
+ } while(0);
+ return return_code;
+}
+
+int rmnet_new_vnd(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint16_t *error_code,
+ uint8_t new_vnd)
+{
+ return rmnet_new_vnd_prefix(hndl, id, error_code, new_vnd, 0);
+}
+
+int rmnet_get_vnd_name(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint16_t *error_code,
+ char *buf,
+ uint32_t buflen)
+{
+ struct rmnet_nl_msg_s request, response;
+ uint32_t str_len;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || (!error_code) || (!buf) || (0 == buflen)) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+
+ request.message_type = RMNET_NETLINK_GET_VND_NAME;
+ request.arg_length = sizeof(uint32_t);
+ request.vnd.id = id;
+
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+
+ if (_rmnetctl_check_data(response.crd, error_code)
+ != RMNETCTL_SUCCESS) {
+ if (_rmnetctl_check_code(response.crd, error_code)
+ == RMNETCTL_SUCCESS)
+ return_code = _rmnetctl_set_codes(response.return_code,
+ error_code);
+ break;
+ }
+
+ str_len = (uint32_t)strlcpy(buf,
+ (char *)(response.vnd.vnd_name),
+ buflen);
+ if (str_len >= buflen) {
+ *error_code = RMNETCTL_API_ERR_STRING_TRUNCATION;
+ break;
+ }
+
+ return_code = RMNETCTL_SUCCESS;
+ } while (0);
+ return return_code;
+}
+
+int rmnet_add_del_vnd_tc_flow(rmnetctl_hndl_t *hndl,
+ uint32_t id,
+ uint32_t map_flow_id,
+ uint32_t tc_flow_id,
+ uint8_t set_flow,
+ uint16_t *error_code) {
+ struct rmnet_nl_msg_s request, response;
+ int return_code = RMNETCTL_LIB_ERR;
+ do {
+ if ((!hndl) || (!error_code) || ((set_flow != RMNETCTL_ADD_FLOW) &&
+ (set_flow != RMNETCTL_DEL_FLOW))) {
+ return_code = RMNETCTL_INVALID_ARG;
+ break;
+ }
+ if (set_flow == RMNETCTL_ADD_FLOW)
+ request.message_type = RMNET_NETLINK_ADD_VND_TC_FLOW;
+ else
+ request.message_type = RMNET_NETLINK_DEL_VND_TC_FLOW;
+
+ request.arg_length = (sizeof(uint32_t))*3;
+ request.flow_control.id = id;
+ request.flow_control.map_flow_id = map_flow_id;
+ request.flow_control.tc_flow_id = tc_flow_id;
+
+ if ((*error_code = rmnetctl_transact(hndl, &request, &response))
+ != RMNETCTL_SUCCESS)
+ break;
+ if (_rmnetctl_check_code(response.crd, error_code) != RMNETCTL_SUCCESS)
+ break;
+ return_code = _rmnetctl_set_codes(response.return_code, error_code);
+ } while(0);
+ return return_code;
+}
+
+/*
+ * NEW DRIVER API
+ */
+/* @brief Synchronous method to receive messages to and from the kernel
+ * using netlink sockets
+ * @details Receives the ack response from the kernel.
+ * @param *hndl RmNet handle for this transaction
+ * @param *error_code Error code if transaction fails
+ * @return RMNETCTL_API_SUCCESS if successfully able to send and receive message
+ * from the kernel
+ * @return RMNETCTL_API_ERR_HNDL_INVALID if RmNet handle for the transaction was
+ * NULL
+ * @return RMNETCTL_API_ERR_MESSAGE_RECEIVE if could not receive message from
+ * the kernel
+ * @return RMNETCTL_API_ERR_MESSAGE_TYPE if the response type does not
+ * match
+ */
+static int rmnet_get_ack(rmnetctl_hndl_t *hndl, uint16_t *error_code)
+{
+ struct nlack {
+ struct nlmsghdr ackheader;
+ struct nlmsgerr ackdata;
+ char data[256];
+
+ } ack;
+ int i;
+
+ if (!hndl || !error_code)
+ return RMNETCTL_INVALID_ARG;
+
+ if ((i = recv(hndl->netlink_fd, &ack, sizeof(ack), 0)) < 0) {
+ *error_code = errno;
+ return RMNETCTL_API_ERR_MESSAGE_RECEIVE;
+ }
+
+ /*Ack should always be NLMSG_ERROR type*/
+ if (ack.ackheader.nlmsg_type == NLMSG_ERROR) {
+ if (ack.ackdata.error == 0) {
+ *error_code = RMNETCTL_API_SUCCESS;
+ return RMNETCTL_SUCCESS;
+ } else {
+ *error_code = -ack.ackdata.error;
+ return RMNETCTL_KERNEL_ERR;
+ }
+ }
+
+ *error_code = RMNETCTL_API_ERR_RETURN_TYPE;
+ return RMNETCTL_API_FIRST_ERR;
+}
+
+/*
+ * EXPOSED NEW DRIVER API
+ */
+int rtrmnet_ctl_init(rmnetctl_hndl_t **hndl, uint16_t *error_code)
+{
+ struct sockaddr_nl __attribute__((__may_alias__)) *saddr_ptr;
+ int netlink_fd = -1;
+ pid_t pid = 0;
+
+ if (!hndl || !error_code)
+ return RMNETCTL_INVALID_ARG;
+
+ *hndl = (rmnetctl_hndl_t *)malloc(sizeof(rmnetctl_hndl_t));
+ if (!*hndl) {
+ *error_code = RMNETCTL_API_ERR_HNDL_INVALID;
+ return RMNETCTL_LIB_ERR;
+ }
+
+ memset(*hndl, 0, sizeof(rmnetctl_hndl_t));
+
+ pid = getpid();
+ if (pid < MIN_VALID_PROCESS_ID) {
+ free(*hndl);
+ *error_code = RMNETCTL_INIT_ERR_PROCESS_ID;
+ return RMNETCTL_LIB_ERR;
+ }
+ (*hndl)->pid = KERNEL_PROCESS_ID;
+ netlink_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+ if (netlink_fd < MIN_VALID_SOCKET_FD) {
+ free(*hndl);
+ *error_code = RMNETCTL_INIT_ERR_NETLINK_FD;
+ return RMNETCTL_LIB_ERR;
+ }
+
+ (*hndl)->netlink_fd = netlink_fd;
+
+ memset(&(*hndl)->src_addr, 0, sizeof(struct sockaddr_nl));
+
+ (*hndl)->src_addr.nl_family = AF_NETLINK;
+ (*hndl)->src_addr.nl_pid = (*hndl)->pid;
+
+ saddr_ptr = &(*hndl)->src_addr;
+ if (bind((*hndl)->netlink_fd,
+ (struct sockaddr *)saddr_ptr,
+ sizeof(struct sockaddr_nl)) < 0) {
+ close((*hndl)->netlink_fd);
+ free(*hndl);
+ *error_code = RMNETCTL_INIT_ERR_BIND;
+ return RMNETCTL_LIB_ERR;
+ }
+
+ memset(&(*hndl)->dest_addr, 0, sizeof(struct sockaddr_nl));
+
+ (*hndl)->dest_addr.nl_family = AF_NETLINK;
+ (*hndl)->dest_addr.nl_pid = KERNEL_PROCESS_ID;
+ (*hndl)->dest_addr.nl_groups = UNICAST;
+
+ return RMNETCTL_SUCCESS;
+}
+
+int rtrmnet_ctl_deinit(rmnetctl_hndl_t *hndl)
+{
+ if (!hndl)
+ return RMNETCTL_SUCCESS;
+
+ close(hndl->netlink_fd);
+ free(hndl);
+
+ return RMNETCTL_SUCCESS;
+}
+
+int rtrmnet_ctl_newvnd(rmnetctl_hndl_t *hndl, char *devname, char *vndname,
+ uint16_t *error_code, uint8_t index,
+ uint32_t flagconfig)
+{
+ struct rtattr *attrinfo, *datainfo, *linkinfo;
+ struct ifla_vlan_flags flags;
+ int devindex = 0, val = 0;
+ char *kind = "rmnet";
+ struct nlmsg req;
+ short id;
+
+ if (!hndl || !devname || !vndname || !error_code)
+ return RMNETCTL_INVALID_ARG;
+
+ memset(&req, 0, sizeof(req));
+ req.nl_addr.nlmsg_type = RTM_NEWLINK;
+ req.nl_addr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+ req.nl_addr.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL |
+ NLM_F_ACK;
+ req.nl_addr.nlmsg_seq = hndl->transaction_id;
+ hndl->transaction_id++;
+
+ /* Get index of devname*/
+ devindex = if_nametoindex(devname);
+ if (devindex < 0) {
+ *error_code = errno;
+ return RMNETCTL_KERNEL_ERR;
+ }
+
+ /* Setup link attr with devindex as data */
+ val = devindex;
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ attrinfo->rta_type = IFLA_LINK;
+ attrinfo->rta_len = RTA_ALIGN(RTA_LENGTH(sizeof(val)));
+ memcpy(RTA_DATA(attrinfo), &val, sizeof(val));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(sizeof(val)));
+
+ /* Set up IFLA info kind RMNET that has linkinfo and type */
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ attrinfo->rta_type = IFLA_IFNAME;
+ attrinfo->rta_len = RTA_ALIGN(RTA_LENGTH(strlen(vndname) + 1));
+ memcpy(RTA_DATA(attrinfo), vndname, strlen(vndname) + 1);
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(strlen(vndname) + 1));
+
+ linkinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ linkinfo->rta_type = IFLA_LINKINFO;
+ linkinfo->rta_len = RTA_ALIGN(RTA_LENGTH(0));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(0));
+
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ attrinfo->rta_type = IFLA_INFO_KIND;
+ attrinfo->rta_len = RTA_ALIGN(RTA_LENGTH(strlen(kind)));
+ memcpy(RTA_DATA(attrinfo), kind, strlen(kind));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(strlen(kind)));
+
+ datainfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ datainfo->rta_type = IFLA_INFO_DATA;
+ datainfo->rta_len = RTA_ALIGN(RTA_LENGTH(0));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(0));
+
+ id = index;
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ attrinfo->rta_type = IFLA_VLAN_ID;
+ attrinfo->rta_len = RTA_LENGTH(sizeof(id));
+ memcpy(RTA_DATA(attrinfo), &id, sizeof(id));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(sizeof(id)));
+
+ if (flagconfig != 0) {
+ flags.mask = flagconfig;
+ flags.flags = flagconfig;
+
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ attrinfo->rta_type = IFLA_VLAN_FLAGS;
+ attrinfo->rta_len = RTA_LENGTH(sizeof(flags));
+ memcpy(RTA_DATA(attrinfo), &flags, sizeof(flags));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(sizeof(flags)));
+ }
+
+ datainfo->rta_len = (char *)NLMSG_TAIL(&req.nl_addr) - (char *)datainfo;
+
+ linkinfo->rta_len = (char *)NLMSG_TAIL(&req.nl_addr) - (char *)linkinfo;
+
+ if (send(hndl->netlink_fd, &req, req.nl_addr.nlmsg_len, 0) < 0) {
+ *error_code = RMNETCTL_API_ERR_MESSAGE_SEND;
+ return RMNETCTL_LIB_ERR;
+ }
+
+ return rmnet_get_ack(hndl, error_code);
+}
+
+int rtrmnet_ctl_delvnd(rmnetctl_hndl_t *hndl, char *vndname,
+ uint16_t *error_code)
+{
+ int devindex = 0;
+ struct nlmsg req;
+
+ if (!hndl || !vndname || !error_code)
+ return RMNETCTL_INVALID_ARG;
+
+ memset(&req, 0, sizeof(req));
+ req.nl_addr.nlmsg_type = RTM_DELLINK;
+ req.nl_addr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+ req.nl_addr.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nl_addr.nlmsg_seq = hndl->transaction_id;
+ hndl->transaction_id++;
+
+ /* Get index of vndname*/
+ devindex = if_nametoindex(vndname);
+ if (devindex < 0) {
+ *error_code = errno;
+ return RMNETCTL_KERNEL_ERR;
+ }
+
+ /* Setup index attribute */
+ req.ifmsg.ifi_index = devindex;
+ if (send(hndl->netlink_fd, &req, req.nl_addr.nlmsg_len, 0) < 0) {
+ *error_code = RMNETCTL_API_ERR_MESSAGE_SEND;
+ return RMNETCTL_LIB_ERR;
+ }
+
+ return rmnet_get_ack(hndl, error_code);
+}
+
+
+int rtrmnet_ctl_changevnd(rmnetctl_hndl_t *hndl, char *devname, char *vndname,
+ uint16_t *error_code, uint8_t index,
+ uint32_t flagconfig)
+{
+ struct rtattr *attrinfo, *datainfo, *linkinfo;
+ struct ifla_vlan_flags flags;
+ char *kind = "rmnet";
+ struct nlmsg req;
+ int devindex = 0;
+ int val = 0;
+ short id;
+
+ memset(&req, 0, sizeof(req));
+
+ if (!hndl || !devname || !vndname || !error_code)
+ return RMNETCTL_INVALID_ARG;
+
+ req.nl_addr.nlmsg_type = RTM_NEWLINK;
+ req.nl_addr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+ req.nl_addr.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nl_addr.nlmsg_seq = hndl->transaction_id;
+ hndl->transaction_id++;
+
+ /* Get index of devname*/
+ devindex = if_nametoindex(devname);
+ if (devindex < 0) {
+ *error_code = errno;
+ return RMNETCTL_KERNEL_ERR;
+ }
+
+ /* Setup link attr with devindex as data */
+ val = devindex;
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+
+ attrinfo->rta_type = IFLA_LINK;
+ attrinfo->rta_len = RTA_ALIGN(RTA_LENGTH(sizeof(val)));
+ memcpy(RTA_DATA(attrinfo), &val, sizeof(val));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(sizeof(val)));
+
+ /* Set up IFLA info kind RMNET that has linkinfo and type */
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ attrinfo->rta_type = IFLA_IFNAME;
+ attrinfo->rta_len = RTA_ALIGN(RTA_LENGTH(strlen(vndname) + 1));
+ memcpy(RTA_DATA(attrinfo), vndname, strlen(vndname) + 1);
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(strlen(vndname) + 1));
+
+ linkinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+
+ linkinfo->rta_type = IFLA_LINKINFO;
+ linkinfo->rta_len = RTA_ALIGN(RTA_LENGTH(0));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(0));
+
+
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+
+ attrinfo->rta_type = IFLA_INFO_KIND;
+ attrinfo->rta_len = RTA_ALIGN(RTA_LENGTH(strlen(kind)));
+ memcpy(RTA_DATA(attrinfo), kind, strlen(kind));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(strlen(kind)));
+
+ datainfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+
+ datainfo->rta_type = IFLA_INFO_DATA;
+ datainfo->rta_len = RTA_ALIGN(RTA_LENGTH(0));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(0));
+
+ id = index;
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ attrinfo->rta_type = IFLA_VLAN_ID;
+ attrinfo->rta_len = RTA_LENGTH(sizeof(id));
+ memcpy(RTA_DATA(attrinfo), &id, sizeof(id));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(sizeof(id)));
+
+ if (flagconfig != 0) {
+ flags.mask = flagconfig;
+ flags.flags = flagconfig;
+
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ attrinfo->rta_type = IFLA_VLAN_FLAGS;
+ attrinfo->rta_len = RTA_LENGTH(sizeof(flags));
+ memcpy(RTA_DATA(attrinfo), &flags, sizeof(flags));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(sizeof(flags)));
+ }
+
+ datainfo->rta_len = (char *)NLMSG_TAIL(&req.nl_addr) - (char *)datainfo;
+
+ linkinfo->rta_len = (char *)NLMSG_TAIL(&req.nl_addr) - (char *)linkinfo;
+
+ if (send(hndl->netlink_fd, &req, req.nl_addr.nlmsg_len, 0) < 0) {
+ *error_code = RMNETCTL_API_ERR_MESSAGE_SEND;
+ return RMNETCTL_LIB_ERR;
+ }
+
+ return rmnet_get_ack(hndl, error_code);
+}
+
+int rtrmnet_ctl_bridgevnd(rmnetctl_hndl_t *hndl, char *devname, char *vndname,
+ uint16_t *error_code)
+{
+ int devindex = 0, vndindex = 0;
+ struct rtattr *masterinfo;
+ struct nlmsg req;
+
+ if (!hndl || !vndname || !devname || !error_code)
+ return RMNETCTL_INVALID_ARG;
+
+ memset(&req, 0, sizeof(req));
+ req.nl_addr.nlmsg_type = RTM_NEWLINK;
+ req.nl_addr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+ req.nl_addr.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+ req.nl_addr.nlmsg_seq = hndl->transaction_id;
+ hndl->transaction_id++;
+
+ /* Get index of vndname*/
+ devindex = if_nametoindex(devname);
+ if (devindex < 0) {
+ *error_code = errno;
+ return RMNETCTL_KERNEL_ERR;
+ }
+
+ vndindex = if_nametoindex(vndname);
+ if (vndindex < 0) {
+ *error_code = errno;
+ return RMNETCTL_KERNEL_ERR;
+ }
+
+ /* Setup index attribute */
+ req.ifmsg.ifi_index = devindex;
+ masterinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+
+ masterinfo->rta_type = IFLA_MASTER;
+ masterinfo->rta_len = RTA_LENGTH(sizeof(vndindex));
+ memcpy(RTA_DATA(masterinfo), &vndindex, sizeof(vndindex));
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH(sizeof(vndindex)));
+
+ if (send(hndl->netlink_fd, &req, req.nl_addr.nlmsg_len, 0) < 0) {
+ *error_code = RMNETCTL_API_ERR_MESSAGE_SEND;
+ return RMNETCTL_LIB_ERR;
+ }
+
+ return rmnet_get_ack(hndl, error_code);
+}
--
1.9.1
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