diff options
Diffstat (limited to 'src/debug-generator/debug-generator.c')
-rw-r--r-- | src/debug-generator/debug-generator.c | 41 |
1 files changed, 32 insertions, 9 deletions
diff --git a/src/debug-generator/debug-generator.c b/src/debug-generator/debug-generator.c index 800d31cebe..ddef385833 100644 --- a/src/debug-generator/debug-generator.c +++ b/src/debug-generator/debug-generator.c @@ -1,8 +1,11 @@ /* SPDX-License-Identifier: LGPL-2.1+ */ #include "alloc-util.h" +#include "dropin.h" +#include "generator.h" #include "mkdir.h" #include "parse-util.h" +#include "path-util.h" #include "proc-cmdline.h" #include "special.h" #include "string-util.h" @@ -14,7 +17,7 @@ static char *arg_default_unit = NULL; static const char *arg_dest = "/tmp"; static char **arg_mask = NULL; static char **arg_wants = NULL; -static bool arg_debug_shell = false; +static char *arg_debug_shell = NULL; static int parse_proc_cmdline_item(const char *key, const char *value, void *data) { int r; @@ -50,15 +53,16 @@ static int parse_proc_cmdline_item(const char *key, const char *value, void *dat return log_oom(); } else if (proc_cmdline_key_streq(key, "systemd.debug_shell")) { + const char *t = NULL; - if (value) { - r = parse_boolean(value); - if (r < 0) - log_error("Failed to parse systemd.debug_shell= argument '%s', ignoring.", value); - else - arg_debug_shell = r; - } else - arg_debug_shell = true; + r = value ? parse_boolean(value) : 1; + if (r < 0) + t = skip_dev_prefix(value); + else if (r > 0) + t = skip_dev_prefix(DEBUGTTY); + + if (free_and_strdup(&arg_debug_shell, t) < 0) + return log_oom(); } else if (streq(key, "systemd.unit")) { @@ -136,6 +140,23 @@ static int generate_wants_symlinks(void) { return r; } +static void install_debug_shell_dropin(const char *dir) { + int r; + + if (streq(arg_debug_shell, skip_dev_prefix(DEBUGTTY))) + return; + + r = write_drop_in_format(dir, "debug-shell.service", 50, "tty", + "[Unit]\n" + "Description=Early root shell on /dev/%s FOR DEBUGGING ONLY\n" + "ConditionPathExists=\n" + "[Service]\n" + "TTYPath=/dev/%s", + arg_debug_shell, arg_debug_shell); + if (r < 0) + log_warning_errno(r, "Failed to write drop-in for debug-shell.service, ignoring: %m"); +} + int main(int argc, char *argv[]) { int r, q; @@ -164,6 +185,8 @@ int main(int argc, char *argv[]) { r = log_oom(); goto finish; } + + install_debug_shell_dropin(arg_dest); } r = generate_mask_symlinks(); |