rc: make get_systype similar to the old rc_sys function
This commit is contained in:
William Hubbs
parent
73482cf13a
commit
f79a7a7be1
@ -43,6 +43,7 @@
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char *rc_conf_value(const char *var);
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bool rc_conf_yesno(const char *var);
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char *get_systype(void);
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void env_filter(void);
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void env_config(void);
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int signal_setup(int sig, void (*handler)(int));
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@ -60,10 +61,6 @@ int is_writable(const char *);
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#define service_stop(service) exec_service(service, "stop");
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int parse_mode(mode_t *, char *);
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const char *detect_prefix(void);
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const char *get_systype(void);
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const char *detect_container(void);
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const char *detect_vm(void);
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/* Handy function so we can wrap einfo around our deptree */
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RC_DEPTREE *_rc_deptree_load (int, int *);
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@ -44,12 +44,9 @@ void set_quiet_options(void)
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_noreturn void show_version(void)
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{
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const char *systype = NULL;
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char *systype = get_systype();
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printf("%s (OpenRC", applet);
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systype = detect_container();
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if (!systype)
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systype = detect_vm();
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if (systype)
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printf(" [%s]", systype);
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printf(") %s", VERSION);
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333
src/rc/rc-misc.c
333
src/rc/rc-misc.c
@ -50,6 +50,172 @@ rc_conf_yesno(const char *setting)
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return rc_yesno(rc_conf_value (setting));
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}
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/*
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* static bool is_container(const char *systype)
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* {
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* FreeBSD: RC_SYS_JAIL
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* Linux: RC_SYS_UML RC_SYS_VSERVER RC_SYS_OPENVZ RC_SYS_LXC
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* RC_SYS_RKT RC_SYS_SYSTEMD_NSPAWN RC_SYS_DOCKER
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* }
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*
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* static bool is_vm(const char *systype)
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* {
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* NetBSD: RC_SYS_XEN0 RC_SYS_XENU
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* Linux: RC_SYS_XEN0 RC_SYS_XENU
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* }
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*/
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static bool file_regex(const char *file, const char *regex)
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{
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FILE *fp;
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char *line = NULL;
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size_t len = 0;
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regex_t re;
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bool retval = true;
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int result;
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if (!(fp = fopen(file, "r")))
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return false;
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if ((result = regcomp(&re, regex, REG_EXTENDED | REG_NOSUB)) != 0) {
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fclose(fp);
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line = xmalloc(sizeof(char) * BUFSIZ);
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regerror(result, &re, line, BUFSIZ);
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fprintf(stderr, "file_regex: %s", line);
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free(line);
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return false;
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}
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while ((rc_getline(&line, &len, fp))) {
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char *str = line;
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/* some /proc files have \0 separated content so we have to
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loop through the 'line' */
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do {
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if (regexec(&re, str, 0, NULL, 0) == 0)
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goto found;
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str += strlen(str) + 1;
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/* len is the size of allocated buffer and we don't
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want call regexec BUFSIZE times. find next str */
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while (str < line + len && *str == '\0')
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str++;
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} while (str < line + len);
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}
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retval = false;
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found:
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fclose(fp);
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free(line);
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regfree(&re);
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return retval;
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}
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char *get_systype(void)
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{
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char *systype = rc_conf_value("rc_sys");
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char *s;
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if (systype) {
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if (*systype == '\0') {
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free(systype);
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return NULL;
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}
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s = systype;
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/* Convert to uppercase */
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while (s && *s) {
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if (islower((unsigned char) *s))
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*s = toupper((unsigned char) *s);
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s++;
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}
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if (strcmp(systype,RC_SYS_PREFIX) == 0)
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return systype;
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#ifdef __FreeBSD__
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if (strcmp(systype, RC_SYS_JAIL) == 0)
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return systype;
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#endif
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#ifdef __linux__
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if (strcmp(systype, RC_SYS_UML) == 0)
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return systype;
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else if (strcmp(systype, RC_SYS_VSERVER) == 0)
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return systype;
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else if (strcmp(systype, RC_SYS_OPENVZ) == 0)
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return systype;
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else if (strcmp(systype, RC_SYS_LXC) == 0)
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return systype;
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else if (strcmp(systype, RC_SYS_RKT) == 0)
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return systype;
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else if (strcmp(systype, RC_SYS_SYSTEMD_NSPAWN) == 0)
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return systype;
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else if (strcmp(systype, RC_SYS_DOCKER) == 0)
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return systype;
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else if (strcmp(systype, RC_SYS_XEN0) == 0)
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return systype;
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else if (strcmp(systype, RC_SYS_XENU) == 0)
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return systype;
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#endif
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#ifdef __NetBSD__
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if(strcmp(systype, RC_SYS_XEN0) == 0)
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return systype;
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else if (strcmp(systype, RC_SYS_XENU) == 0)
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return systype;
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#endif
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}
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free(systype);
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systype = NULL;
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#ifdef PREFIX
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systype = xstrdup(RC_SYS_PREFIX);
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return systype;
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#endif
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#ifdef __FreeBSD__
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int jailed = 0;
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size_t len = sizeof(jailed);
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if (sysctlbyname("security.jail.jailed", &jailed, &len, NULL, 0) == 0)
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if (jailed == 1)
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systype = xstrdup(RC_SYS_JAIL);
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#endif
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#ifdef __linux__
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if (file_regex("/proc/cpuinfo", "UML"))
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systype = xstrdup(RC_SYS_UML);
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else if (file_regex("/proc/self/status",
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"(s_context|VxID):[[:space:]]*[1-9]"))
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systype = xstrdup(RC_SYS_VSERVER);
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else if (exists("/proc/vz/veinfo") && !exists("/proc/vz/version"))
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systype = xstrdup(RC_SYS_OPENVZ);
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else if (file_regex("/proc/self/status",
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"envID:[[:space:]]*[1-9]"))
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systype = xstrdup(RC_SYS_OPENVZ); /* old test */
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else if (file_regex("/proc/1/environ", "container=lxc"))
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systype = xstrdup(RC_SYS_LXC);
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else if (file_regex("/proc/1/environ", "container=rkt"))
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systype = xstrdup(RC_SYS_RKT);
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else if (file_regex("/proc/1/environ", "container=systemd-nspawn"))
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systype = xstrdup(RC_SYS_SYSTEMD_NSPAWN);
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else if (file_regex("/proc/1/environ", "container=docker"))
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systype = xstrdup(RC_SYS_DOCKER);
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else if (exists("/proc/xen")) {
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if (file_regex("/proc/xen/capabilities", "control_d"))
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systype = xstrdup(RC_SYS_XEN0);
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systype = xstrdup(RC_SYS_XENU);
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}
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#endif
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#ifdef __NetBSD__
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if (exists("/kern/xen/privcmd"))
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systype = xstrdup(RC_SYS_XEN0);
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else if (exists("/kern/xen"))
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systype = xstrdup(RC_SYS_XENU);
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#endif
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return systype;
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}
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static const char *const env_whitelist[] = {
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"EERROR_QUIET", "EINFO_QUIET",
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"IN_BACKGROUND", "IN_HOTPLUG",
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@ -126,7 +292,7 @@ env_config(void)
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char *np;
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char *npp;
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char *tok;
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const char *sys = NULL;
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char *sys = get_systype();
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char buffer[PATH_MAX];
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/* Ensure our PATH is prefixed with the system locations first
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@ -177,12 +343,10 @@ env_config(void)
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} else
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setenv("RC_DEFAULTLEVEL", RC_LEVEL_DEFAULT, 1);
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sys = detect_container();
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if (!sys)
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sys = detect_vm();
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if (sys)
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if (sys) {
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setenv("RC_SYS", sys, 1);
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free(sys);
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}
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#ifdef PREFIX
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setenv("RC_PREFIX", RC_PREFIX, 1);
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@ -338,163 +502,6 @@ is_writable(const char *path)
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return 0;
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}
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static bool file_regex(const char *file, const char *regex)
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{
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FILE *fp;
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char *line = NULL;
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size_t len = 0;
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regex_t re;
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bool retval = true;
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int result;
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if (!(fp = fopen(file, "r")))
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return false;
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if ((result = regcomp(&re, regex, REG_EXTENDED | REG_NOSUB)) != 0) {
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fclose(fp);
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line = xmalloc(sizeof(char) * BUFSIZ);
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regerror(result, &re, line, BUFSIZ);
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fprintf(stderr, "file_regex: %s", line);
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free(line);
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return false;
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}
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while ((rc_getline(&line, &len, fp))) {
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char *str = line;
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/* some /proc files have \0 separated content so we have to
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loop through the 'line' */
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do {
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if (regexec(&re, str, 0, NULL, 0) == 0)
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goto found;
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str += strlen(str) + 1;
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/* len is the size of allocated buffer and we don't
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want call regexec BUFSIZE times. find next str */
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while (str < line + len && *str == '\0')
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str++;
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} while (str < line + len);
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}
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retval = false;
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found:
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fclose(fp);
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free(line);
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regfree(&re);
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return retval;
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}
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const char *detect_prefix(void)
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{
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#ifdef PREFIX
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return RC_SYS_PREFIX;
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#else
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return NULL;
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#endif
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}
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const char *get_systype(void)
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{
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char *systype = rc_conf_value("rc_sys");
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if (systype) {
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char *s = systype;
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/* Convert to uppercase */
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while (s && *s) {
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if (islower((unsigned char) *s))
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*s = toupper((unsigned char) *s);
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s++;
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}
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}
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return systype;
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}
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const char *detect_container(void)
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{
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const char *systype = get_systype();
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#ifdef __FreeBSD__
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if (systype && strcmp(systype, RC_SYS_JAIL) == 0)
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return RC_SYS_JAIL;
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int jailed = 0;
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size_t len = sizeof(jailed);
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if (sysctlbyname("security.jail.jailed", &jailed, &len, NULL, 0) == 0)
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if (jailed == 1)
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return RC_SYS_JAIL;
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#endif
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#ifdef __linux__
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if (systype) {
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if (strcmp(systype, RC_SYS_UML) == 0)
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return RC_SYS_UML;
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if (strcmp(systype, RC_SYS_VSERVER) == 0)
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return RC_SYS_VSERVER;
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if (strcmp(systype, RC_SYS_OPENVZ) == 0)
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return RC_SYS_OPENVZ;
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if (strcmp(systype, RC_SYS_LXC) == 0)
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return RC_SYS_LXC;
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if (strcmp(systype, RC_SYS_RKT) == 0)
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return RC_SYS_RKT;
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if (strcmp(systype, RC_SYS_SYSTEMD_NSPAWN) == 0)
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return RC_SYS_SYSTEMD_NSPAWN;
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if (strcmp(systype, RC_SYS_DOCKER) == 0)
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return RC_SYS_DOCKER;
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}
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if (file_regex("/proc/cpuinfo", "UML"))
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return RC_SYS_UML;
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else if (file_regex("/proc/self/status",
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"(s_context|VxID):[[:space:]]*[1-9]"))
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return RC_SYS_VSERVER;
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else if (exists("/proc/vz/veinfo") && !exists("/proc/vz/version"))
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return RC_SYS_OPENVZ;
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else if (file_regex("/proc/self/status",
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"envID:[[:space:]]*[1-9]"))
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return RC_SYS_OPENVZ; /* old test */
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else if (file_regex("/proc/1/environ", "container=lxc"))
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return RC_SYS_LXC;
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else if (file_regex("/proc/1/environ", "container=rkt"))
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return RC_SYS_RKT;
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else if (file_regex("/proc/1/environ", "container=systemd-nspawn"))
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return RC_SYS_SYSTEMD_NSPAWN;
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else if (file_regex("/proc/1/environ", "container=docker"))
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return RC_SYS_DOCKER;
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#endif
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return NULL;
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}
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const char *detect_vm(void)
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{
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const char *systype = get_systype();
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#ifdef __NetBSD__
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if (systype) {
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if(strcmp(systype, RC_SYS_XEN0) == 0)
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return RC_SYS_XEN0;
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if (strcmp(systype, RC_SYS_XENU) == 0)
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return RC_SYS_XENU;
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}
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if (exists("/kern/xen/privcmd"))
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return RC_SYS_XEN0;
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if (exists("/kern/xen"))
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return RC_SYS_XENU;
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#endif
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#ifdef __linux__
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if (systype) {
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if (strcmp(systype, RC_SYS_XEN0) == 0)
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return RC_SYS_XEN0;
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if (strcmp(systype, RC_SYS_XENU) == 0)
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return RC_SYS_XENU;
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}
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if (exists("/proc/xen")) {
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if (file_regex("/proc/xen/capabilities", "control_d"))
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return RC_SYS_XEN0;
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return RC_SYS_XENU;
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}
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#endif
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return NULL;
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}
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RC_DEPTREE * _rc_deptree_load(int force, int *regen)
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{
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int fd;
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19
src/rc/rc.c
19
src/rc/rc.c
@ -281,11 +281,7 @@ open_shell(void)
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struct passwd *pw;
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#ifdef __linux__
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const char *sys = NULL;
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sys = detect_container();
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if (!sys)
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sys = detect_vm();
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char *sys = get_systype();
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/* VSERVER and OPENVZ systems cannot really drop to shells */
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if (sys &&
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@ -470,7 +466,7 @@ static void
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do_sysinit()
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{
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struct utsname uts;
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const char *sys;
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char *sys = get_systype();
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/* exec init-early.sh if it exists
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* This should just setup the console to use the correct
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@ -491,9 +487,6 @@ do_sysinit()
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uts.machine);
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#endif
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sys = detect_container();
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if (!sys)
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sys = detect_vm();
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if (sys)
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printf(" [%s]", sys);
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@ -509,9 +502,7 @@ do_sysinit()
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/* init may have mounted /proc so we can now detect or real
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* sys */
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sys = detect_container();
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if (!sys)
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sys = detect_vm();
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sys = get_systype();
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if (sys)
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setenv("RC_SYS", sys, 1);
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}
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@ -832,9 +823,7 @@ int main(int argc, char **argv)
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eerrorx("%s: %s", applet, strerror(errno));
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/* NOTREACHED */
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case 'S':
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systype = detect_container();
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if (!systype)
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systype = detect_vm();
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systype = get_systype();
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if (systype)
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printf("%s\n", systype);
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exit(EXIT_SUCCESS);
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