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config: Add check_options helper

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The purpose of this helper function is to perform actions common to
different interfaces, after all CRIU options have been parsed. This can
be used, for instance, to verify that a specific option was passed to
CRIU via CLI, RPC or config file.

Signed-off-by: Radostin Stoyanov <rstoyanov1@gmail.com>
Acked-by: Adrian Reber <areber@redhat.com>
Signed-off-by: Andrei Vagin <avagin@gmail.com>
This commit is contained in:
Radostin Stoyanov 2019-01-06 15:44:27 +00:00 • committed by Andrei Vagin
parent 844a72371a
commit e18a6d830a
4 changed files with 38 additions and 26 deletions
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33
criu/config.c
View file

@ -802,3 +802,36 @@ bad_arg:
long_opts[idx].name, optarg);
return 1;
}
int check_options()
{
if (opts.tcp_established_ok)
pr_info("Will dump/restore TCP connections\n");
if (opts.tcp_skip_in_flight)
pr_info("Will skip in-flight TCP connections\n");
if (opts.tcp_close)
pr_info("Will drop all TCP connections on restore\n");
if (opts.link_remap_ok)
pr_info("Will allow link remaps on FS\n");
if (opts.weak_sysctls)
pr_info("Will skip non-existant sysctls on restore\n");
if (opts.deprecated_ok)
pr_info("Turn deprecated stuff ON\n");
else if (getenv("CRIU_DEPRECATED")) {
pr_info("Turn deprecated stuff ON via env\n");
opts.deprecated_ok = true;
}
if (!opts.restore_detach && opts.restore_sibling) {
pr_err("--restore-sibling only makes sense with --restore-detach\n");
return 1;
}
if (check_namespace_opts()) {
pr_err("Error: namespace flags conflict\n");
return 1;
}
return 0;
}

5
criu/cr-service.c
View file

@ -639,8 +639,6 @@ static int setup_opts_from_req(int sk, CriuOpts *req)
if (req->orphan_pts_master)
opts.orphan_pts_master = true;
if (check_namespace_opts())
goto err;
/* Evaluate additional configuration file a second time to overwrite
* all RPC settings. */
@ -650,7 +648,10 @@ static int setup_opts_from_req(int sk, CriuOpts *req)
if (i)
goto err;
}
log_set_loglevel(opts.log_level);
if (check_options())
goto err;
return 0;

25
criu/crtools.c
View file

@ -110,31 +110,8 @@ int main(int argc, char *argv[], char *envp[])
return cr_service_work(atoi(argv[2]));
}
if (opts.deprecated_ok)
pr_msg("Turn deprecated stuff ON\n");
if (opts.tcp_skip_in_flight)
pr_msg("Will skip in-flight TCP connections\n");
if (opts.tcp_established_ok)
pr_info("Will dump TCP connections\n");
if (opts.link_remap_ok)
pr_info("Will allow link remaps on FS\n");
if (opts.weak_sysctls)
pr_msg("Will skip non-existant sysctls on restore\n");
if (getenv("CRIU_DEPRECATED")) {
pr_msg("Turn deprecated stuff ON via env\n");
opts.deprecated_ok = true;
}
if (check_namespace_opts()) {
pr_msg("Error: namespace flags conflict\n");
if (check_options())
return 1;
}
if (!opts.restore_detach && opts.restore_sibling) {
pr_msg("--restore-sibling only makes sense with --restore-detach\n");
return 1;
}
if (opts.imgs_dir == NULL)
SET_CHAR_OPTS(imgs_dir, ".");

1
criu/include/cr_options.h
View file

@ -144,6 +144,7 @@ extern struct cr_options opts;
char *rpc_cfg_file;
extern int parse_options(int argc, char **argv, bool *usage_error, bool *has_exec_cmd, int state);
extern int check_options();
extern void init_opts();
#endif /* __CR_OPTIONS_H__ */