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* net: ifup: have ifup -a1 stop at first DHCP-set global.net.serverAhmad Fatoum2023-02-032-4/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | The normal use case for ifup -a is to get *some* interface working and not really wait for all interfaces to come up and then timeout waiting for those without link up to never get a DHCP lease. When using automounts with a previously empty $global.net.server, we know this to be the case, because the first DHCP interface will set the variable and all remaining ones won't affect this. Therefore, let's add a ifup -a1 option, which would stop after $global.net.server was set via DHCP. This is a special case of a possible future ifup -ar, which would check after each ifup if $global.net.server was either newly set or became resolvable, but that would be a bigger change, so we skip that for now. Times after eth_open_all has brought up CPU Ethernet and 4 DSA ports: barebox$ time ifup -a time: 10002ms barebox$ time ifup -a1 time: 1072ms Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20230130072057.34349-3-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: ifup: have ifup -a poll for link up in parallelAhmad Fatoum2023-02-032-29/+102
| | | | | | | | | | | | | | | | | DHCP is usually fairly quick, but link up check timeout is 10 seconds, which adds up, especially on systems with bigger DSA switches. The workaround is to set ethX.mode=disabled for other ports, but let's improve the default a bit and have barebox poll link ups in parallel, so instead of (number_of_ports_wihout_link * 10s), we just wait 10s at most. For setups where this is a problem, users may revert to ifup in sequence by doing ifup -a -s. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20230130072057.34349-2-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: eth: skip opening disabled interfaces when going interactiveAhmad Fatoum2023-01-201-1/+4
| | | | | | | | | | Ethernet device global mode (ethX.mode) may be set to disabled when ports should not be used. This setting is already respect in ifup, so do likewise for eth_open_all(), which is called when going interactive. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20230117094934.3770899-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Rename struct device_d to deviceSascha Hauer2023-01-101-1/+1
| | | | | | | | | | | | | The '_d' suffix was originally introduced in case we want to import Linux struct device as a separate struct into barebox. Over time it became clear that this won't happen, instead barebox struct device_d is basically the same as Linux struct device. Rename the struct name accordingly to make porting Linux code easier. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-3-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Rename device_d::device_node to device_d::of_nodeSascha Hauer2023-01-101-9/+11
| | | | | | | | | | | | | | | | | | | | Linux struct device has the member of_node for the device_node pointer. Rename this in barebox accordingly to minimize the necessary changes when porting Linux code. This was done with the semantic patch: @@ struct device_d E; @@ - E.device_node + E.of_node @@ struct device_d *E; @@ - E->device_node + E->of_node Plus some manual adjustments. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-2-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: add promiscuous mode configuration supportOleksij Rempel2022-11-081-0/+8
| | | | | | | | | | This configuration is mostly needed for controllers attached to switches with different MAC address configurations or for debugging networking issues. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.barebox.org/20221108061009.4168735-1-o.rempel@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: Bring up all interfaces when going interactiveSascha Hauer2022-09-221-13/+21
| | | | | | | | | | | | | | So far we only bring up network interfaces when we actually need them. This means we could be idling in the shell for long and once the user decides to do networking he has to wait for the link to be established. We can do better: Before going interactive bring up all known network interfaces which makes the links established when the user needs them. To implement this we have to rework carrier checking a bit, because otherwise barebox would wait for the links to be established before continuing. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: fastboot: keep error message initialized at all timesAhmad Fatoum2022-09-121-0/+2
| | | | | | | | | | Static analyzer points out that an unfortunate sequence of fastboot commands can have us end up with an uninitialized error_msg, so initialize it in that case, so we have something in there at all times. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220905095557.596891-33-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: ping: propagate failureAhmad Fatoum2022-09-121-1/+1
| | | | | | | | We populate ret, but don't do anything with it. Pass it along instead. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220905095557.596891-32-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: dns: Return error when nameserver not givenSascha Hauer2022-06-151-1/+1
| | | | | | | When no nameserver is given then return an error instead of returning successfully with 0.0.0.0 as return IP. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: Remove duplicate incudesAlexander Shiyan2022-06-102-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix warning fwterated by checkincludes.pl: ./net/nfs.c: libgen.h is included more than once. ./net/ifup.c: globalvar.h is included more than once. ./crypto/rsa.c: asm/types.h is included more than once. ./lib/decompress_unlz4.c: linux/decompress/mm.h is included more than once. ./scripts/stb_image.h: stdio.h is included more than once. ./scripts/kwbimage.c: unistd.h is included more than once. ./scripts/common.c: sys/types.h is included more than once. ./scripts/bareboximd.c: sys/types.h is included more than once. ./scripts/bareboximd.c: sys/mman.h is included more than once. ./fs/pstore/ram_core.c: linux/rslib.h is included more than once. ./fs/pstore/fs.c: fs.h is included more than once. ./fs/pstore/fs.c: linux/pstore.h is included more than once. ./fs/nfs.c: fs.h is included more than once. ./fs/uimagefs.c: fs.h is included more than once. ./fs/fs.c: command.h is included more than once. ./arch/sandbox/board/hostfile.c: linux/err.h is included more than once. ./arch/sandbox/board/devices.c: mach/linux.h is included more than once. ./arch/sandbox/os/common.c: signal.h is included more than once. ./arch/arm/boards/zii-imx51-rdu1/board.c: envfs.h is included more than once. ./arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c: generated/mach-types.h is ./arch/arm/mach-stm32mp/ddrctrl.c: mach/stm32.h is included more than once. ./arch/arm/mach-imx/cpu_init.c: common.h is included more than once. ./arch/arm/mach-imx/imx8m.c: mach/imx8m-ccm-regs.h is included more than once. ./common/efi/payload/init.c: efi.h is included more than once. ./common/state/backend_format_raw.c: common.h is included more than once. ./common/state/backend_format_raw.c: crc.h is included more than once. ./common/hush.c: libbb.h is included more than once. ./drivers/spi/atmel-quadspi.c: linux/clk.h is included more than once. ./drivers/spi/atmel-quadspi.c: linux/err.h is included more than once. ./drivers/net/virtio.c: net.h is included more than once. ./drivers/net/phy/phy.c: linux/phy.h is included more than once. ./drivers/net/cpsw.c: net.h is included more than once. ./drivers/virtio/virtio_pci_common.h: linux/list.h is included more than once. ./drivers/usb/host/ohci-hcd.c: dma.h is included more than once. ./drivers/usb/gadget/fsl_udc.c: dma.h is included more than once. ./drivers/nvmem/eeprom_93xx46.c: spi/spi.h is included more than once. ./drivers/nvmem/eeprom_93xx46.c: of.h is included more than once. ./drivers/video/imx-ipu-v3/imx-ldb.c: linux/clk.h is included more than once. ./drivers/video/imx-ipu-v3/imx-hdmi.c: linux/clk.h is included more than once. ./drivers/video/omap.c: common.h is included more than once. ./drivers/mtd/nand/nand_s3c24xx.c: asm/sections.h is included more than once. ./drivers/clk/imx/clk-imx6sx.c: linux/clk.h is included more than once. ./drivers/clk/imx/clk-imx6sl.c: linux/clk.h is included more than once. ./commands/bootm.c: of.h is included more than once. Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com> Link: https://lore.barebox.org/20220607051957.2497-1-eagle.alexander923@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: dns: Generate and verify transaction IDJules Maselbas2022-05-161-1/+11
| | | | | | | | | | | | | The transaction ID wasn't verified on received DNS responses, plus the ID needs to be difficult to predict in order to avoid MitM (man in the middle) being able to easily forge responses. The ID is generated from the time of the request, probably not strongly unpredictable, this what musl does and it is considered to be enough. Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu> Link: https://lore.barebox.org/20220512143726.21614-1-jmaselbas@kalray.eu Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* add ethlog commandOleksij Rempel2022-04-192-2/+5
| | | | | | | | | | It is kind of tcpdump or tshark for barebox. Instead of starting application it will let barebox dump everything to the console by still allowing to use other application. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.barebox.org/20220413082205.429509-15-o.rempel@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: add of_find_eth_device_by_node() functionOleksij Rempel2022-04-141-0/+16
| | | | | | | | | For DSA support we need to find MAC node by phandle from the switch port node. So, provide of_find_eth_device_by_node() to solve this task. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.barebox.org/20220413082205.429509-3-o.rempel@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: add RX preprocessor supportOleksij Rempel2022-04-141-0/+11
| | | | | | | | | Add callback for optional rx_preprocessor. This is needed to add DSA switch support and demultiplex traffic received from different switch ports. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.barebox.org/20220413082205.429509-2-o.rempel@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: add SPDX-License-Identifier for files without explicit licenseAhmad Fatoum2022-01-052-0/+4
| | | | | | | | | Record GPL-2.0-only as license for all files lacking an explicit license statement. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-12-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: add SPDX-License-Identifier for Kbuild/KconfigAhmad Fatoum2022-01-052-0/+4
| | | | | | | | | | | | | | | To verify only Kconfig/Makefile is touched: git show --numstat --format=oneline HEAD | grep -v 'Kconfig\|Makefile' will print only arch/powerpc/Kbuild. To verify nothing unexpected is added: git show -U0 | grep '^-[^-]\|^+[^+]' | sort -u Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-3-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: dhcp: set default DHCP vendor ID to "barebox"Oleksij Rempel2021-10-051-0/+2
| | | | | | | | | To make debugging of DHCP related issues easier, set DHCP vendor ID to "barebox" by default. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.barebox.org/20210914064853.2808775-1-o.rempel@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: dhcp: send current hostname as part of the DHCP requestOleksij Rempel2021-10-051-0/+8
| | | | | | | | | | | | To be able to use more advanced DHCP server configurations, for example host name pattern matching, barebox should send some name. With this patch, barebox will send barebox_hostname, if dhcp.hostname is not configured. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.barebox.org/20210914063001.2803749-1-o.rempel@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fastboot net: add setter for global.fastboot.net.autostartMarco Felsch2021-08-231-6/+13
| | | | | | | | | | | | | | Without this change the only possible way to start the fastboot.net.autostart mechanism is by using the nv storage. Split fastboot_on_boot() into two functions: - a globalvar setter fastboot_net_autostart_set() and - a the globalvar init function fastboot_net_init_globalvar(). This allows init scripts to start the autostart mechanism as well. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210813083221.31763-1-m.felsch@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: consult device tree for ethernet address in NVMEM as fall-backAhmad Fatoum2021-06-221-0/+24
| | | | | | | | | | | | | | | | | | | | | While barebox fixes up the mac-address into the device tree, it doesn't care much for extracting a mac address _from_ the device tree, whether it be from local-mac-address property or from a mac-address nvmem cell. Fix the latter by calling of_get_mac_addr_nvmem for each Ethernet adapter. We do this in a very late initcall, because we don't want to enforce a probe a probe order between nvmem providers and network devices. We can't do it at randomization time, because we need to fixup Ethernet mac addresses, even when barebox itself doesn't ifup the netdev. of_get_mac_addr_nvmem could be replaced by of_get_mac_address to also parse local-mac-address and brethern, but justifying this change is left as a future exercise. Cc: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210619034516.6737-13-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: dns: use correct nameserver var name in error messageAntony Pavlov2021-05-251-1/+1
| | | | | | | | | | The commit d5d342d26368c1 ("net: Make domainname and nameserver globalvars") changes net.nameserver variable name to global.net.nameserver. This commit changes the variable name in the error message too. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Link: https://lore.barebox.org/20210525062133.5458-1-antonynpavlov@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/usb-gadget'Sascha Hauer2021-05-172-4/+1
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| * fastboot/dfu: use system partitions as fall backAhmad Fatoum2021-05-121-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Use the new system partitions infrastructure to have fastboot and DFU fall back to using the same partitions if the global.usbgadget.dfu_function and global.fastboot_partitions are not set, respectively. No functional change intended for configurations that have SYSTEM_PARTITIONS disabled. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210503114901.13095-13-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * common: make FILE_LIST feature unconditionalAhmad Fatoum2021-05-121-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | CONFIG_FILE_LIST controls whether the file_list_* family of functions are compiled. common/file-list.o does not register any initcalls and there is no code that is dependent on it being available: it's selected as required. This means linker GC can completely get rid of it if required, so drop the symbol. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210503114901.13095-16-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Removed Unreachable code: net/net.c: net_handle_arp()Neeraj Pal2021-05-121-2/+0
|/ | | | | | Signed-off-by: Neeraj Pal <neerajpal09@gmail.com> Link: https://lore.barebox.org/20210508193654.81389-1-neerajpal09@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: eth: of_fixup_node: Use reproducible node name for fixupStefan Riedmueller2021-03-301-6/+10
| | | | | | | | | To be able to fixup older devicetrees, prior to v4.15 where leading zeros of the unit addresses were removed, use the reproducible name to find the corresponding nodes. Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: include <linux/math64.h> wrapper instead of <asm-generic/div64.h>Ahmad Fatoum2021-02-191-1/+1
| | | | | | | | | | | <asm-generic/div64.h> isn't meant for direct usage as <asm/div64.h> may override this on a per-architecture basis. We don't do that currently, but in the future we might. Include the <linux/math64.h> instead. No functional change. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: introduce unsetenv() to prepare for changing setenv(var, "") behaviorAhmad Fatoum2020-11-231-1/+1
| | | | | | | | | | | | | | | | | Currently, we treat setenv(var, "") and setenv(var, NULL) the same and delete var, which is surprising and leads to subtle quirks: - setenv(var, "") is specified by POSIX to set var to an empty string, but barebox uses it to delete variables - nv.user= calls nv_set with NULL parameter, but nv user="" doesn't Make the API more POSIX-like by providing unsetenv with the expected semantics. Most user code can then use unsetenv without worrying about whether "" or NULL is the magic deletion value. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: Replace license and copyright boilerplate by SPDX identfiersUwe Kleine-König2020-11-028-113/+30
| | | | | | | | | Converts the files that licensecheck can determine to be licensed under GPL-2.0-only or GPL-2.0-or-later and also convert the copyright statements to SPDX. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* magicvar: Replace BAREBOX_MAGICVAR_NAMED with BAREBOX_MAGICVARSascha Hauer2020-10-024-19/+17
| | | | | | | | BAREBOX_MAGICVAR now generates a unique identifier automatically, so we can convert users of BAREBOX_MAGICVAR_NAMED to the simpler BAREBOX_MAGICVAR macro. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fastboot net: implement fastboot over UDPEdmund Henniges2020-08-193-0/+594
| | | | | | | | | | | | | | This implements the UDP variant of the fastboot protocol. The only way to start the service for now is to compile with CONFIG_FASTBOOT_NET_ON_BOOT. The service will bind to the network interface that provides the IPv4 gateway. Sending an OKAY packet before performing a restart is necessary since contrary to USB the host will not notice when a UDP server disappears. Signed-off-by: Edmund Henniges <eh@emlix.com> Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: reply to ping requestsSascha Hauer2020-08-191-2/+44
| | | | | | | Now that we have the network receive function running in a poller we can reasonably well answer to ping requests. Implement this feature. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: Call net_poll() in a pollerSascha Hauer2020-08-193-5/+60
| | | | | | | | | | | | | | | This adds calling of net_poll() in a poller. With this we can react to incoming packets like ping requests or fastboot requests. We could change to call net_poll() from a poller exclusively, but this would significantly slow down USB network controllers. As described in the patch these take a long time in the packet receive path. To work around this we keep the networking users call net_poll() at a high rate when they are waiting for incoming packets and only every 10ms we call net_poll() from a poller to get incoming traffic when no networking protocol is actively calling net_poll(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: Add a slice to struct eth_deviceSascha Hauer2020-08-191-2/+72
| | | | | | Add ethernet code safe for being called from a poller. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: eth: rename __eth_rx()Sascha Hauer2020-08-191-4/+4
| | | | | | | | | __eth_rx() not only receives packets but also checks the carrier. In the next steps it will also send the queued packets, so rename the function to eth_do_work(). Also return void as the only caller can't do anything with the return value. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* nfs: Fix out of bounds readSascha Hauer2020-06-031-1/+3
| | | | | | | | | nfs_read_reply() interprets the fields of an incoming packet directly as a field length without checking the boundaries. Clamp the maximum length to the packet length to avoid reading out of bounds. Reported-by: Jai Verma <jai2.verma@outlook.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: remove references to CREDITSUwe Kleine-König2020-04-276-18/+0
| | | | | | | | The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97 ("Remove the CREDITS file"). Remove references to it from several files. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: Add ifdown support and commandSascha Hauer2020-03-311-0/+69
| | | | | | | ifdown is the counterpart to ifup and disables one or all ethernet interfaces. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: ifup command: add ethernet device completionSascha Hauer2020-03-311-0/+2
| | | | | | | ifup usually takes an ethernet device, so use ethernet device completion for the command. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: Open ethernet devices explicitlySascha Hauer2020-03-313-27/+36
| | | | | | | | Open ethernet devices explicitly rather than implicitly when sending packets. This allows us to not only enable, but in the next step to also disable ethernet devices. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: nfs: Fix possible buffer overflowSascha Hauer2019-09-021-1/+4
| | | | | | | | nfs_readlink_reply() interprets a 32bit value directly received from the network as length argument to memcpy() without any boundary checking. Clamp the copy size at the end of the incoming packet. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/net'Sascha Hauer2019-01-153-12/+32
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| * net: Allow hostnames for global.net.serverSascha Hauer2019-01-042-7/+16
| | | | | | | | | | | | | | Additional to IPv4 addresses add support for global.net.server being a hostname. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * net: dns: Allow to set variable with the resolved hostSascha Hauer2019-01-041-4/+10
| | | | | | | | | | | | | | Add an additional [VARIABLE] parameter to the host command to allow setting a variable with the resolved IP address. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * net: dns: leave host command with error on failureSascha Hauer2019-01-041-4/+9
| | | | | | | | | | | | | | When we can't resolv a host we should return an error rather than just successfully. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | net: lib: Make use of ETH_ALENAndrey Smirnov2018-12-101-4/+4
|/ | | | | Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: dns: return error codesSascha Hauer2018-11-295-23/+35
| | | | | | | | | | | | | | The resolv() function used to return the IP address. When net_udp_new() fails we return an error code though which the callers of resolv() take as an IP address. This is wrong of course and we could return 0 in this case. Instead we return an error code and pass the resolved IP as a pointer which allows us to return proper error codes. This patch also adds error messages and error returns to the various callers of resolv() which used to just continue with a zero IP and let the user figure out what went wrong. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ping command: Print which host is pingedSascha Hauer2018-11-291-0/+2
| | | | | | | | When a hostname instead a IP is given to the ping command then the IP the host is resolved to is a useful information. Add a message printing it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* net: dns: Use pr_debugSascha Hauer2018-11-291-12/+15
| | | | | | | | Use pr_debug rather than debug and add a pr_fmt string to give the messages more context. While at it add a debug message which prints the ip when successfully resolved. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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