X-Git-Url: http://git.linux-vserver.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fvserver-info.c;h=8a1358471e1e0b3b15a79c6f2eb2b834648ce3a3;hb=91365cf6f8d78ceddb70c8663c3982b3fcbca1c7;hp=d695fee402b477593e10b8a2d0319984fe8f6640;hpb=9c78378bebc1a9f3d400f422df8ede9efea57dea;p=util-vserver.git diff --git a/src/vserver-info.c b/src/vserver-info.c index d695fee..8a13584 100644 --- a/src/vserver-info.c +++ b/src/vserver-info.c @@ -53,6 +53,7 @@ typedef enum { tgNONE,tgCONTEXT, tgID, tgRUNNING, tgXID, tgUTS, tgSYSINFO, tgFEATURE, tgCANONIFY, tgVERIFYCAP, tgXIDTYPE, tgVERIFYPROC, + tgNID, tgTAG, } VserverTag; static struct { @@ -82,6 +83,8 @@ static struct { { "VERIFYCAP", tgVERIFYCAP, "test if the kernel supports linux capabilities" }, { "VERIFYPROC", tgVERIFYPROC, "test if /proc can be read by contexts!=0" }, { "XIDTYPE", tgXIDTYPE, "returns the type of the given XID" }, + { "NID", tgNID, "outputs the network context-id of the given pid" }, + { "TAG", tgTAG, "outputs the filesystem tag of the given pid" }, }; int wrapper_exit_code = 1; @@ -182,9 +185,11 @@ verifyProc() static bool verifyCap() { + int retried = 0; struct __user_cap_header_struct header; - struct __user_cap_data_struct user; - header.version = _LINUX_CAPABILITY_VERSION; + struct __user_cap_data_struct user[2]; + + header.version = _LINUX_CAPABILITY_VERSION_3; header.pid = 0; if (getuid()!=0) { @@ -196,17 +201,24 @@ verifyCap() // perror( "prctl:" ); // return false; // } - - if (capget(&header, &user)==-1) { + +retry: + if (capget(&header, user)==-1) { + if (!retried && + header.version != _LINUX_CAPABILITY_VERSION_3) { + header.version = _LINUX_CAPABILITY_VERSION_1; + retried = 1; + goto retry; + } perror("capget()"); return false; } - user.effective = 0; - user.permitted = 0; - user.inheritable = 0; + user[0].effective = user[1].effective = 0; + user[0].permitted = user[1].permitted = 0; + user[0].inheritable = user[1].inheritable = 0; - if (capset(&header, &user)==-1) { + if (capset(&header, user)==-1) { perror("capset()"); return false; } @@ -230,13 +242,13 @@ getAPIVer(char *buf) return buf; } -static char * -getXid(char *buf, char const *pid_str) +static inline char * +getCtxId(char *buf, const char *pid_str, xid_t (*get_id)(pid_t pid), const char *err_str) { pid_t pid = atoi(pid_str); - xid_t xid = vc_get_task_xid(pid); + xid_t xid = get_id(pid); - if (xid==VC_NOCTX) perror("vc_get_task_xid()"); + if (xid==VC_NOCTX) perror(err_str); else { utilvserver_fmt_long(buf, xid); return buf; @@ -246,6 +258,24 @@ getXid(char *buf, char const *pid_str) } static char * +getXid(char *buf, char const *pid_str) +{ + return getCtxId(buf, pid_str, vc_get_task_xid, "vc_get_task_xid()"); +} + +static char * +getNid(char *buf, const char *pid_str) +{ + return getCtxId(buf, pid_str, vc_get_task_nid, "vc_get_task_nid()"); +} + +static char * +getTag(char *buf, const char *pid_str) +{ + return getCtxId(buf, pid_str, vc_get_task_tag, "vc_get_task_tag()"); +} + +static char * getPXid(char UNUSED *buf, char const UNUSED *vserver) { // TODO: implement me when available @@ -434,7 +464,7 @@ static char * getContext(char *buf, char const *vserver, bool allow_only_static) { xid_t xid = vc_getVserverCtx(vserver, vcCFG_AUTO, - allow_only_static, 0); + allow_only_static, 0, vcCTX_XID); if (xid==VC_NOCTX) return 0; utilvserver_fmt_long(buf, xid); @@ -502,7 +532,7 @@ execQuery(char const *vserver, VserverTag tag, int argc, char *argv[]) if (isNumber(vserver, &xid, true) && xid>=0) res = (vc_get_vx_info(xid, &info)==-1) ? 0 : "1"; else - res = (vc_getVserverCtx(vserver, vcCFG_AUTO, false, 0)==VC_NOCTX) ? 0 : "1"; + res = (vc_getVserverCtx(vserver, vcCFG_AUTO, false, 0, vcCTX_XID)==VC_NOCTX) ? 0 : "1"; break; } @@ -522,6 +552,8 @@ execQuery(char const *vserver, VserverTag tag, int argc, char *argv[]) case tgFEATURE : return testFeature(argc,argv); break; case tgVERIFYCAP : return verifyCap() ? 0 : 1; break; case tgVERIFYPROC : return verifyProc() ? 0 : 1; break; + case tgNID : res = getNid(buf, vserver); break; + case tgTAG : res = getTag(buf, vserver); break; default : { @@ -562,7 +594,7 @@ int main(int argc, char *argv[]) default : WRITE_MSG(2, "Try '"); WRITE_STR(2, argv[0]); - WRITE_MSG(2, " --help\" for more information.\n"); + WRITE_MSG(2, " --help' for more information.\n"); exit(1); break; }