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systemd
1002-udev-add-option-to-generate-old-buggy-SCSI...
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File 1002-udev-add-option-to-generate-old-buggy-SCSI-serials.patch of Package systemd
From 217b7855c3b95c1b20458c58f3e7ef756728d3d5 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney <jeffm@suse.com> Date: Sun, 27 Jul 2014 14:20:36 +0200 Subject: [PATCH 1002/1007] udev: add option to generate old 'buggy' SCSI serials Prior to udev 184, scsi_id would truncate the last character of the model string when generating the ID_SERIAL value. If a system was installed prior to that fix being available in udev, there may be configuration information that refers to the truncated link. This patch adds a --truncated-serial option and a udev rule will created the old truncated links. Signed-off-by: Jeff Mahoney <jeffm@suse.com> [fbui: forward ported from commit b5dafd57359b6e92b35dd419df2b2dd503057ebc] [fbui: fix error detected by the rule syntax checker in 61-persistent-storage-compat.rules] [fbui: adjust context] [fbui: fixes bnc#886852] --- rules.d/61-persistent-storage-compat.rules | 4 ++++ src/udev/scsi_id/scsi_id.c | 13 ++++++++++++- src/udev/scsi_id/scsi_id.h | 1 + src/udev/scsi_id/scsi_serial.c | 17 +++++++++++------ 4 files changed, 28 insertions(+), 7 deletions(-) diff --git a/rules.d/61-persistent-storage-compat.rules b/rules.d/61-persistent-storage-compat.rules index bd229f619b..a49e5e54eb 100644 --- a/rules.d/61-persistent-storage-compat.rules +++ b/rules.d/61-persistent-storage-compat.rules @@ -126,6 +126,10 @@ ENV{DEVTYPE}=="disk", ENV{ID_BUS}=="ata|nvme|scsi", DEVPATH!="*/virtual/*", IMPO ENV{DEVTYPE}=="disk", ENV{ID_PATH_COMPAT2}=="?*", SYMLINK+="disk/by-path/$env{ID_PATH_COMPAT2}" ENV{DEVTYPE}=="partition", ENV{ID_PATH_COMPAT2}=="?*", SYMLINK+="disk/by-path/$env{ID_PATH_COMPAT2}-part%n" +# scsi compat links for ATA devices (for compatibility with udev < 184) (bnc#886852) +KERNEL=="sd*[!0-9]", ENV{ID_BUS}=="ata", PROGRAM=="scsi_id --truncated-serial --whitelisted --replace-whitespace -p0x80 -d$tempnode", RESULT=="?*", ENV{ID_SCSI_COMPAT_TRUNCATED}="$result", SYMLINK+="disk/by-id/scsi-$env{ID_SCSI_COMPAT_TRUNCATED}" +KERNEL=="sd*[0-9]", ENV{ID_SCSI_COMPAT_TRUNCATED}=="?*", SYMLINK+="disk/by-id/scsi-$env{ID_SCSI_COMPAT_TRUNCATED}-part%n" + # # Generation #2 # diff --git a/src/udev/scsi_id/scsi_id.c b/src/udev/scsi_id/scsi_id.c index b2d8154d86..a058880b8d 100644 --- a/src/udev/scsi_id/scsi_id.c +++ b/src/udev/scsi_id/scsi_id.c @@ -37,6 +37,7 @@ static const struct option options[] = { { "replace-whitespace", no_argument, NULL, 'u' }, { "sg-version", required_argument, NULL, 's' }, { "verbose", no_argument, NULL, 'v' }, + { "truncated-serial", no_argument, NULL, '9' }, { "version", no_argument, NULL, 'V' }, /* don't advertise -V */ { "export", no_argument, NULL, 'x' }, { "help", no_argument, NULL, 'h' }, @@ -48,6 +49,7 @@ static bool dev_specified = false; static char config_file[MAX_PATH_LEN] = "/etc/scsi_id.config"; static enum page_code default_page_code = PAGE_UNSPECIFIED; static int sg_version = 4; +static bool compat_truncated = false; static bool reformat_serial = false; static bool export = false; static char vendor_str[64]; @@ -226,6 +228,7 @@ static void help(void) { " -g --whitelisted Treat device as whitelisted\n" " -u --replace-whitespace Replace all whitespace by underscores\n" " -v --verbose Verbose logging\n" + " --truncated-serial truncated serial for compatibility with systems configured with by-id links created by udev < 184\n" " -x --export Print values as environment keys\n", program_invocation_short_name); } @@ -294,6 +297,10 @@ static int set_options(int argc, char **argv, log_open(); break; + case '9': + compat_truncated = true; + break; + case 'V': printf("%s\n", GIT_VERSION); exit(EXIT_SUCCESS); @@ -430,6 +437,9 @@ static int scsi_id(char *maj_min_dev) { udev_replace_whitespace(dev_scsi.serial_short, serial_str, sizeof(serial_str)-1); udev_replace_chars(serial_str, NULL); printf("ID_SERIAL_SHORT=%s\n", serial_str); + udev_replace_whitespace(dev_scsi.serial_compat, serial_str, sizeof(serial_str)-1); + udev_replace_chars(serial_str, NULL); + printf("ID_SERIAL_COMPAT=%s\n", serial_str); } if (dev_scsi.wwn[0] != '\0') { printf("ID_WWN=0x%s\n", dev_scsi.wwn); @@ -452,9 +462,10 @@ static int scsi_id(char *maj_min_dev) { } if (reformat_serial) { + char *p = compat_truncated ? dev_scsi.serial_compat : dev_scsi.serial; char serial_str[MAX_SERIAL_LEN]; - udev_replace_whitespace(dev_scsi.serial, serial_str, sizeof(serial_str)-1); + udev_replace_whitespace(p, serial_str, sizeof(serial_str)-1); udev_replace_chars(serial_str, NULL); printf("%s\n", serial_str); goto out; diff --git a/src/udev/scsi_id/scsi_id.h b/src/udev/scsi_id/scsi_id.h index 9ab3341855..b8cb1e5e2e 100644 --- a/src/udev/scsi_id/scsi_id.h +++ b/src/udev/scsi_id/scsi_id.h @@ -32,6 +32,7 @@ struct scsi_id_device { char kernel[64]; char serial[MAX_SERIAL_LEN]; char serial_short[MAX_SERIAL_LEN]; + char serial_compat[MAX_SERIAL_LEN]; unsigned type; int use_sg; diff --git a/src/udev/scsi_id/scsi_serial.c b/src/udev/scsi_id/scsi_serial.c index 489f5ad16a..04fc5f7cc9 100644 --- a/src/udev/scsi_id/scsi_serial.c +++ b/src/udev/scsi_id/scsi_serial.c @@ -83,7 +83,7 @@ static const char hex_str[]="0123456789abcdef"; #define SG_ERR_CAT_OTHER 99 /* Some other error/warning */ static int do_scsi_page80_inquiry(struct scsi_id_device *dev_scsi, int fd, - char *serial, char *serial_short, int max_len); + char *serial, char *serial_short, char *serial_compat, int max_len); static int sg_err_category_new(int scsi_status, int msg_status, int host_status, int driver_status, const @@ -557,7 +557,7 @@ static int do_scsi_page83_inquiry(struct scsi_id_device *dev_scsi, int fd, unsigned char page_83[SCSI_INQ_BUFF_LEN]; /* also pick up the page 80 serial number */ - do_scsi_page80_inquiry(dev_scsi, fd, NULL, unit_serial_number, MAX_SERIAL_LEN); + do_scsi_page80_inquiry(dev_scsi, fd, NULL, unit_serial_number, NULL, MAX_SERIAL_LEN); memzero(page_83, SCSI_INQ_BUFF_LEN); retval = scsi_inquiry(dev_scsi, fd, 1, PAGE_83, page_83, @@ -697,7 +697,7 @@ static int do_scsi_page83_prespc3_inquiry(struct scsi_id_device *dev_scsi, int f /* Get unit serial number VPD page */ static int do_scsi_page80_inquiry(struct scsi_id_device *dev_scsi, int fd, - char *serial, char *serial_short, int max_len) { + char *serial, char *serial_short, char *serial_compat, int max_len) { int retval; int ser_ind; int i; @@ -730,9 +730,14 @@ static int do_scsi_page80_inquiry(struct scsi_id_device *dev_scsi, int fd, ser_ind = append_vendor_model(dev_scsi, serial + 1); if (ser_ind < 0) return 1; + if (serial_compat) + strcpy(serial_compat, serial); ser_ind++; /* for the leading 'S' */ - for (i = 4; i < len + 4; i++, ser_ind++) + for (i = 4; i < len + 4; i++, ser_ind++) { serial[ser_ind] = buf[i]; + if (serial_compat) + serial_compat[ser_ind - 1] = buf[i]; + } } if (serial_short) { memcpy(serial_short, buf + 4, len); @@ -804,7 +809,7 @@ int scsi_get_serial(struct scsi_id_device *dev_scsi, const char *devname, return 1; if (page_code == PAGE_80) { - if (do_scsi_page80_inquiry(dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len)) { + if (do_scsi_page80_inquiry(dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, dev_scsi->serial_compat, len)) { retval = 1; goto completed; } else { @@ -878,7 +883,7 @@ int scsi_get_serial(struct scsi_id_device *dev_scsi, const char *devname, for (ind = 4; ind <= page0[3] + 3; ind++) if (page0[ind] == PAGE_80) if (!do_scsi_page80_inquiry(dev_scsi, fd, - dev_scsi->serial, dev_scsi->serial_short, len)) { + dev_scsi->serial, dev_scsi->serial_short, dev_scsi->serial_compat, len)) { /* * Success */ -- 2.31.1
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