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* command: Remove the cmd_tbl_t typedefSimon Glass2020-05-181-1/+1
| | | | | | | | | | | | | We should not use typedefs in U-Boot. They cannot be used as forward declarations which means that header files must include the full header to access them. Drop the typedef and rename the struct to remove the _s suffix which is now not useful. This requires quite a few header-file additions. Signed-off-by: Simon Glass <sjg@chromium.org>
* make env_entry::callback conditional on !CONFIG_SPL_BUILDRasmus Villemoes2020-04-241-0/+2
| | | | | | | | | | | | | | | | | | The callback member of struct env_entry is always NULL for an SPL build. Removing it thus saves a bit of run-time memory in the SPL (when CONFIG_SPL_ENV_SUPPORT=y) since struct env_entry is embedded in struct env_entry_node - i.e. about 2KB for the normal case of 512+change hash table entries. Two small fixups are needed for this, all other references to the callback member are already under !CONFIG_SPL_BUILD: Don't initialize .callback in set_flags() - hsearch_r doesn't use that value anyway. And make env_callback_init() initialize ->callback to NULL for a new entry instead of relying on an unused or deleted entry having NULL in ->callback. Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Simon Glass <sjg@chromium.org>
* env: Drop the double underscores in search.hSimon Glass2019-08-111-28/+24
| | | | | | | | | | | There doesn't seem to be any good reason for using __ in the arguments in this header file. A double underscore is usually reserved for compiler features. Drop these and remove the unnecessary 'extern' as well. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* env: Drop the ACTION typedefSimon Glass2019-08-111-8/+8
| | | | | | | | | | | | Avoid using a typedef here which is unnecessary. Add an 'env_' prefix to both the enum and its members to make it clear that these are related to the environment. Add an ENV prefix to these two flags so that it is clear what they relate to. Also move them to env.h since they are part of the public API. Use an enum rather than a #define to tie them together. Signed-off-by: Simon Glass <sjg@chromium.org>
* env: Drop _ENTRYSimon Glass2019-08-111-4/+1
| | | | | | | | This typedef does not need to be defined in the search.h header since it is only used in one file (hashtable.c). Remove it from the header and change it to a struct. Signed-off-by: Simon Glass <sjg@chromium.org>
* env: Drop the ENTRY typedefSimon Glass2019-08-111-9/+12
| | | | | | | | | | | U-Boot is not supposed to use typedef for structs anymore. Also this name is the same as the ENTRY() macro used in assembler files, and 'entry' itself is widely used in U-Boot (>8k matches). Drop the typedef and rename the struct to env_entry to reduce confusion. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* env: Move callback definitions to env.hSimon Glass2019-08-111-6/+0
| | | | | | | | | These definitions are effectively part of the 'public' API of the environment implementation since they do not require access to any internal variables. Move them to the env.h header. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* env: Move env_set() to env.hSimon Glass2019-08-111-0/+1
| | | | | | | Move env_set() over to the new header file. Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Simon Glass <sjg@chromium.org>
* SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini2018-05-071-2/+1
| | | | | | | | | | | | | | | | | | | | When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
* env: Rename setenv() to env_set()Simon Glass2017-08-161-1/+1
| | | | | | | | We are now using an env_ prefix for environment functions. Rename setenv() for consistency. Also add function comments in common.h. Suggested-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
* search.h: Numerous grammatical fixes, comment updatesRobert P. J. Day2016-10-061-15/+13
| | | | | | | | | | | | Tweaks (no functional changes) to include/search.h, including: * use standard multiple inclusion check * fix spelling mistakes * have comments match actual names in function prototypes * remove obsolete reference to "do_apply" * replace "hashing table" with "hash table" Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
* env: Distinguish finer between source of env changeJoe Hershberger2015-05-211-0/+2
| | | | | | | | | | | We already could tell the difference in the callback between an import and "other" which we called interactive. Now add further distinction between interactive (i.e. running env set / env edit / env ask / etc. from the U-Boot command line) and programmatic (i.e. when u-boot source calls any variant of setenv() ). Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* Add option -r to env import to allow import of text files with CRLF as line ↵Alexander Holler2014-07-221-1/+2
| | | | | | | | | | | | | | endings When this option is enabled, CRLF is treated like LF when importing environments from text files, which means CRs ('\r') in front of LFs ('\n') are just ignored. Drawback of enabling this option is that (maybe exported) variables which have a trailing CR in their content will get imported without that CR. But this drawback is very unlikely and the big advantage of letting Windows user create a *working* uEnv.txt too is likely more welcome. Signed-off-by: Alexander Holler <holler@ahsoftware.de>
* Add LGPL-2.1+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-241-14/+1
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* "env grep" - add support for regular expression matchesWolfgang Denk2013-05-011-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | When CONFIG_REGEX is enabled, the new option "-e" becomes available which causes regular expression matches to be used. This allows for example things like these: - print all MAC addresses: => env grep -e eth.*addr eth1addr=00:10:ec:80:c5:15 ethaddr=00:10:ec:00:c5:15 - print all variables that have at least 2 colons in their value: => env grep -v -e :.*: addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off panic=1 eth1addr=00:10:ec:80:c5:15 ethaddr=00:10:ec:00:c5:15 ver=U-Boot 2013.04-rc1-00289-g497746b-dirty (Mar 22 2013 - 12:50:25) etc. Signed-off-by: Wolfgang Denk <wd@denx.de>
* "env grep" - reimplement command using hexport_r()Wolfgang Denk2013-05-011-6/+0
| | | | | | | Also drop hstrstr_r() which is not needed any more. The new code is way more flexible. Signed-off-by: Wolfgang Denk <wd@denx.de>
* hashtable: preparations to use hexport_r() for "env grep"Wolfgang Denk2013-05-011-1/+7
| | | | | | | | | | The output of "env grep" is unsorted, and printing is done by a private implementation to parse the hash table. We have all the needed code in place in hexport_r() alsready, so let's use this instead. Here we prepare the code for this, without any functional changes yet. Signed-off-by: Wolfgang Denk <wd@denx.de>
* env: Add environment variable flagsJoe Hershberger2012-12-131-0/+1
| | | | | | | | | | | Currently just validates variable types as decimal, hexidecimal, boolean, ip address, and mac address. If the entry is not found in the env ".flags", then look in the static one. This allows the env to override the static definitions, but prevents the need to have every definition in the environment distracting you. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* env: Add support for callbacks to environment varsJoe Hershberger2012-12-131-0/+5
| | | | | | | | Add support for per-variable callbacks to the "hashtable" functions. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> !!!fix comment in callback
* env: Hide '.' variables in env print by defaultJoe Hershberger2012-12-131-2/+3
| | | | | | | | | | When printing all variables with env print, don't print variables that begin with '.'. If env print is called with a '-a' switch, then include variables that begin with '.' (just like the ls command). Variables printed explicitly will be printed even without the -a. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* env: Refactor apply into change_okJoe Hershberger2012-12-131-4/+9
| | | | | | | | | | | | | | | | Move the read of the old value to inside the check function. In some cases it can be avoided all together and at the least the code is only called from one place. Also name the function and the callback to more clearly describe what it does. Pass the ENTRY instead of just the name for direct access to the whole data structure. Pass an enum to the callback that specifies the operation being approved. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* env: Refactor do_apply to a flagJoe Hershberger2012-12-131-7/+8
| | | | | | | | | | Use a flag in hsearch_r for insert mode passed from import to allow the behavior be different based on use. Now that "do_check" is called for all imports, ensure console init is complete before updating the console on relocation import Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* env: check and apply changes on delete/destroyGerlando Falauto2012-09-181-2/+3
| | | | | Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com> Reviewed-by: Marek Vasut <marex@denx.de>
* env: add check/apply logic to himport_r()Gerlando Falauto2012-09-181-1/+13
| | | | | | | | | | | | | | | | | | | Change hashtable so that a callback function will decide whether a variable can be overwritten, and possibly apply the changes. So add a new field to struct hsearch_data: o "apply" callback function to check whether a variable can be overwritten, and possibly immediately apply the changes; when NULL, no check is performed. And a new argument to himport_r(): o "do_apply": whether to call the apply callback function NOTE: This patch does not change the current behavior. Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com> Reviewed-by: Marek Vasut <marex@denx.de>
* env: make himport_r() selective on variablesGerlando Falauto2012-09-181-1/+5
| | | | | | | | | | | | Add 2 new arguments to himport_r(): o "nvars", "vars": number and list of variables to take into account (0 means ALL) NOTE: This patch does not change the current behaviour. Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com> Reviewed-by: Marek Vasut <marex@denx.de>
* env: unify logic to check and apply changesGerlando Falauto2012-09-181-1/+2
| | | | | | | | | | | | | | The logic of checking special parameters (e.g. baudrate, stdin, stdout, for a valid value and/or whether can be overwritten) and applying the new value to the running system is now all within a single function env_check_apply() which can be called whenever changes are made to the environment, no matter if by set, default or import. With this patch env_check_apply() is only called by "env set", retaining previous behavior. Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com> Reviewed-by: Marek Vasut <marex@denx.de>
* env: allow to export only selected variablesWolfgang Denk2011-11-081-1/+2
| | | | | | | | | | | | | | New syntax: env export [-t | -b | -c] [-s size] addr [var ...] With this change it is possible to provide a list of variables names that shall be exported. Whenno arguments are given, the whole environment gets exported. NOTE: The new handling of the "size" argument means a change to the user API. Signed-off-by: Wolfgang Denk <wd@denx.de>
* Constify getenv(), setenv() and hash code functionsWolfgang Denk2011-07-301-1/+1
| | | | | | | | | | | This is needed to get rid of build warnings like main.c:311: warning: passing argument 2 of 'setenv' discards qualifiers from pointer target type which result from commit 09c2e90 "unify version_string". Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Andreas Bießmann <andreas.devel@googlemail.com>
* common: add a grepenv commandKim Phillips2011-04-281-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | u-boot environments, esp. when boards are shared across multiple users, can get pretty large and time consuming to visually parse. The grepenv command this patch adds can be used in lieu of printenv to facilitate searching. grepenv works like printenv but limits its output only to environment strings (variable name and value pairs) that match the user specified substring. the following examples are on a board with a 5313 byte environment that spans multiple screen pages: Example 1: summarize ethernet configuration: => grepenv eth TSEC etact=FM1@DTSEC2 eth=FM1@DTSEC4 ethact=FM1@DTSEC2 eth1addr=00:E0:0C:00:8b:01 eth2addr=00:E0:0C:00:8b:02 eth3addr=00:E0:0C:00:8b:03 eth4addr=00:E0:0C:00:8b:04 eth5addr=00:E0:0C:00:8b:05 eth6addr=00:E0:0C:00:8b:06 eth7addr=00:E0:0C:00:8b:07 eth8addr=00:E0:0C:00:8b:08 eth9addr=00:E0:0C:00:8b:09 ethaddr=00:E0:0C:00:8b:00 netdev=eth0 uprcw=setenv ethact $eth;setenv filename p4080ds/R_PPSXX_0xe/rcw_0xe_2sgmii_rev2_high.bin;setenv start 0xe8000000;protect off all;run upimage;protect on all upuboot=setenv ethact $eth;setenv filename u-boot.bin;setenv start eff80000;protect off all;run upimage;protect on all upucode=setenv ethact $eth;setenv filename fsl_fman_ucode_P4080_101_6.bin;setenv start 0xef000000;protect off all;run upimage;protect on all usdboot=setenv ethact $eth;tftp 1000000 $dir/$bootfile;tftp 2000000 $dir/initramfs.cpio.gz.uboot;tftp c00000 $dir/p4080ds-usdpaa.dtb;setenv bootargs root=/dev/ram rw console=ttyS0,115200 $othbootargs;bootm 1000000 2000000 c00000; => Example 2: detect unused env vars: => grepenv etact etact=FM1@DTSEC2 => Example 3: reveal hardcoded variables; e.g., for fdtaddr: => grepenv fdtaddr fdtaddr=c00000 nfsboot=setenv bootargs root=/dev/nfs rw nfsroot=$serverip:$rootpath ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off console=$consoledev,$baudrate $othbootargs;tftp $loadaddr $bootfile;tftp $fdtaddr $fdtfile;bootm $loadaddr - $fdtaddr ramboot=setenv bootargs root=/dev/ram rw console=$consoledev,$baudrate $othbootargs;tftp $ramdiskaddr $ramdiskfile;tftp $loadaddr $bootfile;tftp $fdtaddr $fdtfile;bootm $loadaddr $ramdiskaddr $fdtaddr => grep $fdtaddr fdtaddr=c00000 my_boot=bootm 0x40000000 0x41000000 0x00c00000 my_dtb=tftp 0x00c00000 $prefix/p4080ds.dtb nohvboot=tftp 1000000 $dir/$bootfile;tftp 2000000 $dir/$ramdiskfile;tftp c00000 $dir/$fdtfile;setenv bootargs root=/dev/ram rw ramdisk_size=0x10000000 console=ttyS0,115200;bootm 1000000 2000000 c00000; => This patch also enables the grepenv command by default on corenet_ds based boards (and repositions the DHCP command entry to keep the list sorted). Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Cc: Kumar Gala <kumar.gala@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
* env: re-add support for auto-completionMike Frysinger2011-01-091-0/+7
| | | | | | | Currently, only basic completion is supported (no globs), but this is what we had previously. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* hashtable: drop all non-reentrant versionsMike Frysinger2010-12-171-17/+1
| | | | | | | | | | | The non-reentrant versions of the hashtable functions operate on a single shared hashtable. So if two different people try using these funcs for two different purposes, they'll cause problems for the other. Avoid this by converting all existing hashtable consumers over to the reentrant versions and then punting the non-reentrant ones. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Add hash table support as base for new environment codeWolfgang Denk2010-09-191-0/+106
This implementation is based on code from uClibc-0.9.30.3 but was modified and extended for use within U-Boot. Major modifications and extensions: * hsearch() [modified / extended]: - While the standard version does not make any assumptions about the type of the stored data objects at all, this implementation works with NUL terminated strings only. - Instead of storing just pointers to the original objects, we create local copies so the caller does not need to care about the data any more. - The standard implementation does not provide a way to update an existing entry. This version will create a new entry or update an existing one when both "action == ENTER" and "item.data != NULL". - hsearch_r(): Instead of returning 1 on success, we return the index into the internal hash table, which is also guaranteed to be positive. This allows us direct access to the found hash table slot for example for functions like hdelete(). * hdelete() [added]: - The standard implementation of hsearch(3) does not provide any way to delete any entries from the hash table. We extend the code to do that. * hexport() [added]: - Export the data stored in the hash table in linearized form: Entries are exported as "name=value" strings, separated by an arbitrary (non-NUL, of course) separator character. This allows to use this function both when formatting the U-Boot environment for external storage (using '\0' as separator), but also when using it for the "printenv" command to print all variables, simply by using as '\n" as separator. This can also be used for new features like exporting the environment data as text file, including the option for later re-import. - The entries in the result list will be sorted by ascending key values. * himport() [added]: - Import linearized data into hash table. This is the inverse function to hexport(): it takes a linear list of "name=value" pairs and creates hash table entries from it. - Entries without "value", i. e. consisting of only "name" or "name=", will cause this entry to be deleted from the hash table. - The "flag" argument can be used to control the behaviour: when the H_NOCLEAR bit is set, then an existing hash table will kept, i. e. new data will be added to an existing hash table; otherwise, old data will be discarded and a new hash table will be created. - The separator character for the "name=value" pairs can be selected, so we both support importing from externally stored environment data (separated by NUL characters) and from plain text files (entries separated by newline characters). - To allow for nicely formatted text input, leading white space (sequences of SPACE and TAB chars) is ignored, and entries starting (after removal of any leading white space) with a '#' character are considered comments and ignored. - NOTE: this means that a variable name cannot start with a '#' character. - When using a non-NUL separator character, backslash is used as escape character in the value part, allowing for example fo multi-line values. - In theory, arbitrary separator characters can be used, but only '\0' and '\n' have really been tested. Signed-off-by: Wolfgang Denk <wd@denx.de>
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