# include <config.h>
#endif
+#include "pathconfig.h"
#include "util.h"
-#include "wrappers.h"
#include "internal.h"
#include "vserver.h"
#include <getopt.h>
#include <assert.h>
#include <stdbool.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/utsname.h>
+
+#define ENSC_WRAPPERS_FCNTL 1
+#define ENSC_WRAPPERS_IO 1
+#define ENSC_WRAPPERS_UNISTD 1
+#include <wrappers.h>
typedef enum { tgNONE,tgCONTEXT, tgRUNNING,
tgVDIR, tgNAME, tgCFGDIR, tgAPPDIR,
+ tgAPIVER,
tgINITPID, tgINITPID_PID,
- tgXID,
+ tgXID, tgUTS, tgSYSINFO,
+ tgFEATURE,
} VserverTag;
static struct {
VserverTag const val;
char const * const descr;
} const TAGS[] = {
- { "CONTEXT", tgCONTEXT, "the current and/or assigned context" },
+ { "CONTEXT", tgCONTEXT, ("the current and/or assigned context; when an optinal argument "
+ "evaluates to false,only the current context will be printed") },
{ "RUNNING", tgRUNNING, "gives out '1' when vserver is running; else, it fails without output" },
{ "VDIR", tgVDIR, "gives out the root-directory of the vserver" },
{ "NAME", tgNAME, "gives out the name of the vserver" },
{ "INITPID", tgINITPID, "gives out the initpid of the given context" },
{ "INITPID_PID", tgINITPID_PID, "gives out the initpid of the given pid" },
{ "XID", tgXID, "gives out the context-id of the given pid" },
+ { "APIVER", tgAPIVER, "gives out the version of the kernel API" },
+ { "UTS", tgUTS, ("gives out an uts-entry; possible entries are "
+ "context, sysname, nodename, release, version, "
+ "machine and domainname") },
+ { "SYSINFO", tgSYSINFO, "gives out information about the systen" },
+ { "FEATURE", tgFEATURE, "returns 0 iff the queried feature is supported" },
};
-#define TAGS_COUNT (sizeof(TAGS)/sizeof(TAGS[0]))
-
int wrapper_exit_code = 1;
static struct option const
WRITE_MSG(fd, "Usage: ");
WRITE_STR(fd, cmd);
WRITE_MSG(fd,
- " [-q] <vserver>|<pid>|<context> <tag>\n"
+ " [-ql] <vserver>|<pid>|<context> <tag>\n"
"Please report bugs to " PACKAGE_BUGREPORT "\n");
exit(res);
}
size_t i;
WRITE_MSG(1, "Valid tags are: ");
- for (i=0; i<TAGS_COUNT; ++i) {
+ for (i=0; i<DIM_OF(TAGS); ++i) {
WRITE_STR(1, delim);
WRITE_STR(1, TAGS[i].tag);
stringToTag(char const *str)
{
size_t i;
- for (i=0; i<TAGS_COUNT; ++i)
+ for (i=0; i<DIM_OF(TAGS); ++i)
if (strcmp(TAGS[i].tag, str)==0) return TAGS[i].val;
return tgNONE;
}
+static vc_uts_type
+utsText2Tag(char const *str)
+{
+ if (strcmp(str, "context") ==0) return vcVHI_CONTEXT;
+ else if (strcmp(str, "sysname") ==0) return vcVHI_SYSNAME;
+ else if (strcmp(str, "nodename") ==0) return vcVHI_NODENAME;
+ else if (strcmp(str, "release") ==0) return vcVHI_RELEASE;
+ else if (strcmp(str, "version") ==0) return vcVHI_VERSION;
+ else if (strcmp(str, "machine") ==0) return vcVHI_MACHINE;
+ else if (strcmp(str, "domainname")==0) return vcVHI_DOMAINNAME;
+ else {
+ WRITE_MSG(2, "Unknown UTS tag\n");
+ exit(1);
+ }
+}
+
+static char *
+getAPIVer(char *buf)
+{
+ int v = vc_get_version();
+ size_t l;
+
+ if (v==-1) return 0;
+
+
+ l = utilvserver_fmt_xulong(0, (unsigned int)v);
+ memcpy(buf, "0x00000000", 10);
+ utilvserver_fmt_xulong(buf+2+8-l, (unsigned int)v);
+
+ return buf;
+}
+
+static char *
+getXid(char *buf, char const *vserver)
+{
+ pid_t pid = atoi(vserver);
+ xid_t xid = vc_get_task_xid(pid);
+
+ if (xid==VC_NOCTX) perror("vc_get_task_xid()");
+ else {
+ utilvserver_fmt_long(buf, xid);
+ return buf;
+ }
+
+ return 0;
+}
+
+static char *
+getInitPid(char *buf, xid_t xid)
+{
+ struct vc_vx_info info;
+
+ if (vc_get_vx_info(xid, &info)==-1) perror("vc_get_vx_info()");
+ else {
+ utilvserver_fmt_long(buf, info.initpid);
+ return buf;
+ }
+
+ return 0;
+}
+
+static char *
+getInitPidPid(char *buf, char const *vserver)
+{
+ struct vc_vx_info info;
+ pid_t pid = atoi(vserver);
+ xid_t xid = vc_get_task_xid(pid);
+
+ if (xid==VC_NOCTX) perror("vc_get_task_xid()");
+ else if (vc_get_vx_info(xid, &info)==-1) perror("vc_get_vx_info()");
+ else {
+ utilvserver_fmt_long(buf, info.initpid);
+ return buf;
+ }
+
+ return 0;
+}
+
+static char *
+getUTS(char *buf, xid_t xid, size_t argc, char * argv[])
+{
+ if (argc>0) {
+ vc_uts_type type = utsText2Tag(argv[0]);
+ if (vc_get_vhi_name(xid, type, buf, sizeof(buf)-1)==-1)
+ perror("vc_get_vhi_name()");
+ else
+ return buf;
+ }
+ else {
+ bool is_passed = false;
+ char tmp[128];
+#define APPEND_UTS(TYPE) \
+ (((vc_get_vhi_name(xid, TYPE, tmp, sizeof(tmp)-1)!=-1) && (strcat(buf, tmp), strcat(buf, " "), is_passed=true)) || \
+ (strcat(buf, "??? ")))
+
+ if (APPEND_UTS(vcVHI_CONTEXT) &&
+ APPEND_UTS(vcVHI_SYSNAME) &&
+ APPEND_UTS(vcVHI_NODENAME) &&
+ APPEND_UTS(vcVHI_RELEASE) &&
+ APPEND_UTS(vcVHI_VERSION) &&
+ APPEND_UTS(vcVHI_MACHINE) &&
+ APPEND_UTS(vcVHI_DOMAINNAME) &&
+ is_passed)
+ return buf;
+
+ perror("vc_get_vhi_name()");
+#undef APPEND_UTS
+ }
+
+ return 0;
+}
+
+static int
+printSysInfo(char *buf)
+{
+ int fd = open(PKGLIBDIR "/FEATURES.txt", O_RDONLY);
+ struct utsname uts;
+
+ if (uname(&uts)==-1)
+ perror("uname()");
+ else {
+ WRITE_MSG(1,
+ "Versions:\n"
+ " Kernel: ");
+ WRITE_STR(1, uts.release);
+ WRITE_MSG(1, "\n"
+ " VS-API: ");
+
+ memset(buf, 0, 128);
+ if (getAPIVer(buf)) WRITE_STR(1, buf);
+ else WRITE_MSG(1, "???");
+
+ WRITE_MSG(1, "\n"
+ " util-vserver: " PACKAGE_VERSION "; " __DATE__ ", " __TIME__"\n"
+ "\n");
+ }
+
+ if (fd==-1)
+ WRITE_MSG(1, "FEATURES.txt not found\n");
+ else {
+ off_t l = Elseek(fd, 0, SEEK_END);
+ Elseek(fd, 0, SEEK_SET);
+ {
+ char buf[l];
+ EreadAll(fd, buf, l);
+ EwriteAll(1, buf, l);
+ }
+ Eclose(fd);
+ }
+
+ return EXIT_SUCCESS;
+}
+
+static char *
+getContext(char *buf, char const *vserver, bool allow_only_static)
+{
+ xid_t xid = vc_getVserverCtx(vserver, vcCFG_AUTO,
+ allow_only_static, 0);
+ if (xid==VC_NOCTX) return 0;
+
+ utilvserver_fmt_long(buf, xid);
+ return buf;
+}
+
+static int
+testFeature(int argc, char *argv[])
+{
+ return (argc>0 && vc_isSupportedString(argv[0])) ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
+static bool
+str2bool(char const *str)
+{
+ return atoi(str)!=0 || strchr("yYtY", str[0])!=0;
+}
+
static int
execQuery(char const *vserver, VserverTag tag, int argc, char *argv[])
{
char const * res = 0;
- char buf[sizeof(xid_t)*4 + 16];
- xid_t ctx;
-
+ char buf[sizeof(xid_t)*4 + 1024];
+ xid_t xid = *vserver!='\0' ? (xid_t)(atoi(vserver)) : VC_SAMECTX;
+
+ memset(buf, 0, sizeof buf);
switch (tag) {
case tgNAME : res = vc_getVserverName(vserver, vcCFG_AUTO); break;
case tgVDIR :
res = vc_getVserverAppDir(vserver, vcCFG_AUTO, argc==0 ? "" : argv[0]);
break;
- case tgCONTEXT :
- ctx = vc_getVserverCtx(vserver, vcCFG_AUTO, true, 0);
- if (ctx!=VC_NOCTX) {
- utilvserver_fmt_long(buf, ctx);
- res = buf;
- }
- break;
-
case tgRUNNING :
res = (vc_getVserverCtx(vserver, vcCFG_AUTO, false, 0)==VC_NOCTX) ? 0 : "1";
break;
- case tgXID :
- {
- pid_t pid = atoi(vserver);
- xid_t xid = vc_get_task_xid(pid);
- if (xid==VC_NOCTX) perror("vc_get_task_xid()");
- else {
- utilvserver_fmt_long(buf, xid);
- res = buf;
- }
- break;
- }
-
- case tgINITPID :
- {
- xid_t xid = *vserver!='\0' ? (xid_t)(atoi(vserver)) : VC_SAMECTX;
- struct vc_vx_info info;
- if (vc_get_vx_info(xid, &info)==-1) perror("vc_get_vx_info()");
- else {
- utilvserver_fmt_long(buf, info.xid);
- res = buf;
- }
- break;
- }
-
- case tgINITPID_PID :
- {
- pid_t pid = atoi(vserver);
- xid_t xid = vc_get_task_xid(pid);
- struct vc_vx_info info;
-
- if (xid==VC_NOCTX) perror("vc_get_task_xid()");
- else if (vc_get_vx_info(xid, &info)==-1) perror("vc_get_vx_info()");
- else {
- utilvserver_fmt_long(buf, info.xid);
- res = buf;
- }
- break;
- }
-
+ case tgCONTEXT : res = getContext(buf, vserver,
+ argc==0 || str2bool(argv[0])); break;
+ case tgXID : res = getXid(buf, vserver); break;
+ case tgINITPID : res = getInitPid(buf, xid); break;
+ case tgINITPID_PID : res = getInitPidPid(buf, vserver); break;
+ case tgAPIVER : res = getAPIVer(buf); break;
+ case tgUTS : res = getUTS(buf, xid, argc, argv); break;
+ case tgSYSINFO : return printSysInfo(buf); break;
+ case tgFEATURE : return testFeature(argc,argv); break;
+
default : assert(false); abort(); // TODO
}