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| author | Roger Pueyo Centelles <roger.pueyo@guifi.net> | 2019-11-28 13:29:12 +0100 |
|---|---|---|
| committer | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2020-01-23 15:28:03 +0100 |
| commit | 7d39946ea0fe954bcd0c4d52fffc6d9dc6248cf6 (patch) | |
| tree | e60c257a7e24b1ff028ab50c94c020407a7fe0ec /package | |
| parent | ba730d61af3b860e5d5a086a318a6c2a84e68c9c (diff) | |
| download | upstream-7d39946ea0fe954bcd0c4d52fffc6d9dc6248cf6.tar.gz upstream-7d39946ea0fe954bcd0c4d52fffc6d9dc6248cf6.tar.bz2 upstream-7d39946ea0fe954bcd0c4d52fffc6d9dc6248cf6.zip | |
rbextract: support devices directly showing ERD magic
Older ath79-based MikroTik devices have the ERD calibration data
compressed and stored different to newer IPQ40xx ones. This commit
adds support for these former ones.
Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
Acked-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Diffstat (limited to 'package')
| -rw-r--r-- | package/utils/rbextract/Makefile | 3 | ||||
| -rw-r--r-- | package/utils/rbextract/src/rbextract.c | 28 |
2 files changed, 30 insertions, 1 deletions
diff --git a/package/utils/rbextract/Makefile b/package/utils/rbextract/Makefile index b055a615cf..4bc6898b11 100644 --- a/package/utils/rbextract/Makefile +++ b/package/utils/rbextract/Makefile @@ -2,6 +2,7 @@ # Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org> # Copyright (C) 2018 Chris Schimp <silverchris@gmail.com> # Copyright (C) 2019 Robert Marko <robimarko@gmail.com> +# Copyright (C) 2019 Roger Pueyo Centelles <roger.pueyo@guifi.net> # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. @@ -10,7 +11,7 @@ include $(TOPDIR)/rules.mk PKG_NAME:=rbextract -PKG_RELEASE:=1 +PKG_RELEASE:=2 CMAKE_INSTALL:=1 include $(INCLUDE_DIR)/package.mk diff --git a/package/utils/rbextract/src/rbextract.c b/package/utils/rbextract/src/rbextract.c index 0985497f3f..ceed2494a1 100644 --- a/package/utils/rbextract/src/rbextract.c +++ b/package/utils/rbextract/src/rbextract.c @@ -333,7 +333,35 @@ __rb_get_wlan_data(void) goto err_free_rle_out; } } + /* Older ath79-based boards directly show the RB_MAGIC_ERD bytes followed by + the LZO-compressed calibration data with no RLE */ + if (magic == RB_MAGIC_ERD) { + if (tag_len > RB_ART_SIZE) { + printf("Calibration data too large\n"); + goto err_free_lzo_in; + } + + err = routerboot_find_tag(tag, tag_len, + 0x1, &buf_lzo_in, &erd_tag_len); + if (err) { + printf("No ERD chunk found\n"); + goto err_free_lzo_out; + } + + printf("Decompressing with LZO\n"); + lzo_out_len = RB_ART_SIZE; + err = lzo1x_decompress_safe(buf_lzo_in, tag_len, + buf_lzo_out, &lzo_out_len, NULL); + /* For some reason, I get this "input not consumed" error + * even though the output is correct, so ignore it. */ + if (err && err != LZO_E_INPUT_NOT_CONSUMED) { + printf("unable to decompress calibration data: %d\n", + err); + goto err_free_lzo_out; + } + buf_rle_out = buf_lzo_out; + } return buf_rle_out; err_free_rle_out: |