port-solaris.c revision 221420
1139749Simp/* $Id: port-solaris.c,v 1.4 2010/11/05 01:03:05 dtucker Exp $ */ 2119853Scg 350724Scg/* 450724Scg * Copyright (c) 2006 Chad Mynhier. 550724Scg * 650724Scg * Permission to use, copy, modify, and distribute this software for any 750724Scg * purpose with or without fee is hereby granted, provided that the above 850724Scg * copyright notice and this permission notice appear in all copies. 950724Scg * 1050724Scg * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 1150724Scg * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1250724Scg * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 1350724Scg * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1450724Scg * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1550724Scg * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 1650724Scg * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1750724Scg */ 1850724Scg 1950724Scg#include "config.h" 2050724Scg#include "includes.h" 2150724Scg 2250724Scg#ifdef USE_SOLARIS_PROCESS_CONTRACTS 2350724Scg 2450724Scg#include <sys/types.h> 2550724Scg#include <sys/stat.h> 2650724Scg#include <sys/param.h> 2753465Scg 2850724Scg#include <errno.h> 2970134Scg#ifdef HAVE_FCNTL_H 3070134Scg# include <fcntl.h> 3182180Scg#endif 3282180Scg#include <stdarg.h> 3370134Scg#include <string.h> 3470134Scg#include <unistd.h> 3566308Scg 3665645Scg#include <libcontract.h> 3750724Scg#include <sys/contract/process.h> 38164614Sariff#include <sys/ctfs.h> 39164614Sariff 40167644Sariff#include "log.h" 41167644Sariff 42167644Sariff#define CT_TEMPLATE CTFS_ROOT "/process/template" 43167644Sariff#define CT_LATEST CTFS_ROOT "/process/latest" 44167644Sariff 45167644Sariffstatic int tmpl_fd = -1; 46167644Sariff 47167644Sariff/* Lookup the latest process contract */ 48170289Sdwmalonestatic ctid_t 49167644Sariffget_active_process_contract_id(void) 50167644Sariff{ 51167644Sariff int stat_fd; 52167644Sariff ctid_t ctid = -1; 53167644Sariff ct_stathdl_t stathdl; 54167644Sariff 55167644Sariff if ((stat_fd = open64(CT_LATEST, O_RDONLY)) == -1) { 56167644Sariff error("%s: Error opening 'latest' process " 57167644Sariff "contract: %s", __func__, strerror(errno)); 58167644Sariff return -1; 59167644Sariff } 60167644Sariff if (ct_status_read(stat_fd, CTD_COMMON, &stathdl) != 0) { 61167644Sariff error("%s: Error reading process contract " 62167644Sariff "status: %s", __func__, strerror(errno)); 63167644Sariff goto out; 64167644Sariff } 65167644Sariff if ((ctid = ct_status_get_id(stathdl)) < 0) { 66167644Sariff error("%s: Error getting process contract id: %s", 67167644Sariff __func__, strerror(errno)); 68167644Sariff goto out; 69167644Sariff } 70167644Sariff 71164614Sariff ct_status_free(stathdl); 72164614Sariff out: 73167644Sariff close(stat_fd); 74164614Sariff return ctid; 7564881Scg} 7664881Scg 7770134Scgvoid 7864881Scgsolaris_contract_pre_fork(void) 7964881Scg{ 8064881Scg if ((tmpl_fd = open64(CT_TEMPLATE, O_RDWR)) == -1) { 8164881Scg error("%s: open %s: %s", __func__, 8264881Scg CT_TEMPLATE, strerror(errno)); 8364881Scg return; 8450724Scg } 8550724Scg 8664881Scg debug2("%s: setting up process contract template on fd %d", 8764881Scg __func__, tmpl_fd); 8864881Scg 8989834Scg /* First we set the template parameters and event sets. */ 9089834Scg if (ct_pr_tmpl_set_param(tmpl_fd, CT_PR_PGRPONLY) != 0) { 9170134Scg error("%s: Error setting process contract parameter set " 9264881Scg "(pgrponly): %s", __func__, strerror(errno)); 9364881Scg goto fail; 9464881Scg } 9564881Scg if (ct_pr_tmpl_set_fatal(tmpl_fd, CT_PR_EV_HWERR) != 0) { 9689834Scg error("%s: Error setting process contract template " 9789834Scg "fatal events: %s", __func__, strerror(errno)); 9864881Scg goto fail; 99111909Sorion } 10089834Scg if (ct_tmpl_set_critical(tmpl_fd, 0) != 0) { 10197274Sbde error("%s: Error setting process contract template " 10297274Sbde "critical events: %s", __func__, strerror(errno)); 10389834Scg goto fail; 10489834Scg } 10589834Scg if (ct_tmpl_set_informative(tmpl_fd, CT_PR_EV_HWERR) != 0) { 10670134Scg error("%s: Error setting process contract template " 10764881Scg "informative events: %s", __func__, strerror(errno)); 10864881Scg goto fail; 10964881Scg } 11064881Scg 11189834Scg /* Now make this the active template for this process. */ 112164614Sariff if (ct_tmpl_activate(tmpl_fd) != 0) { 113164614Sariff error("%s: Error activating process contract " 114170161Sariff "template: %s", __func__, strerror(errno)); 115164614Sariff goto fail; 116164614Sariff } 117170161Sariff return; 118170161Sariff 119170161Sariff fail: 120170884Sariff if (tmpl_fd != -1) { 121164614Sariff close(tmpl_fd); 122164614Sariff tmpl_fd = -1; 123164614Sariff } 124164614Sariff} 125164614Sariff 126164614Sariffvoid 127164614Sariffsolaris_contract_post_fork_child() 128164614Sariff{ 129164614Sariff debug2("%s: clearing process contract template on fd %d", 130164614Sariff __func__, tmpl_fd); 131164614Sariff 132164614Sariff /* Clear the active template. */ 133164614Sariff if (ct_tmpl_clear(tmpl_fd) != 0) 134164614Sariff error("%s: Error clearing active process contract " 135164614Sariff "template: %s", __func__, strerror(errno)); 136164614Sariff 137164614Sariff close(tmpl_fd); 138164614Sariff tmpl_fd = -1; 139164614Sariff} 140164614Sariff 141164614Sariffvoid 142164614Sariffsolaris_contract_post_fork_parent(pid_t pid) 143164614Sariff{ 144164614Sariff ctid_t ctid; 145164614Sariff char ctl_path[256]; 146164614Sariff int r, ctl_fd = -1, stat_fd = -1; 147164614Sariff 148164614Sariff debug2("%s: clearing template (fd %d)", __func__, tmpl_fd); 149164614Sariff 150164614Sariff if (tmpl_fd == -1) 151164614Sariff return; 152164614Sariff 153164614Sariff /* First clear the active template. */ 154164614Sariff if ((r = ct_tmpl_clear(tmpl_fd)) != 0) 155164614Sariff error("%s: Error clearing active process contract " 156164614Sariff "template: %s", __func__, strerror(errno)); 157164614Sariff 158164614Sariff close(tmpl_fd); 159164614Sariff tmpl_fd = -1; 160164614Sariff 16189834Scg /* 16289834Scg * If either the fork didn't succeed (pid < 0), or clearing 16389834Scg * th active contract failed (r != 0), then we have nothing 16464881Scg * more do. 16564881Scg */ 16664881Scg if (r != 0 || pid <= 0) 16789834Scg return; 16889834Scg 16989834Scg /* Now lookup and abandon the contract we've created. */ 17064881Scg ctid = get_active_process_contract_id(); 17170134Scg 17275355Scg debug2("%s: abandoning contract id %ld", __func__, ctid); 173111909Sorion 17489834Scg snprintf(ctl_path, sizeof(ctl_path), 17589834Scg CTFS_ROOT "/process/%ld/ctl", ctid); 17689834Scg if ((ctl_fd = open64(ctl_path, O_WRONLY)) < 0) { 17789834Scg error("%s: Error opening process contract " 17889834Scg "ctl file: %s", __func__, strerror(errno)); 17970134Scg goto fail; 18070134Scg } 18164881Scg if (ct_ctl_abandon(ctl_fd) < 0) { 18264881Scg error("%s: Error abandoning process contract: %s", 18364881Scg __func__, strerror(errno)); 18464881Scg goto fail; 18564881Scg } 18664881Scg close(ctl_fd); 18764881Scg return; 18889834Scg 18964881Scg fail: 19064881Scg if (tmpl_fd != -1) { 19174363Scg close(tmpl_fd); 19274363Scg tmpl_fd = -1; 19374363Scg } 19474363Scg if (stat_fd != -1) 19574363Scg close(stat_fd); 19674363Scg if (ctl_fd != -1) 19774363Scg close(ctl_fd); 19874363Scg} 19974363Scg#endif 20074363Scg 20174363Scg#ifdef USE_SOLARIS_PROJECTS 20274363Scg#include <sys/task.h> 20374363Scg#include <project.h> 20450724Scg 20564881Scg/* 20650724Scg * Get/set solaris default project. 20766308Scg * If we fail, just run along gracefully. 20866308Scg */ 20966308Scgvoid 21066308Scgsolaris_set_default_project(struct passwd *pw) 21150724Scg{ 21250724Scg struct project *defaultproject; 21370134Scg struct project tempproject; 21474763Scg char buf[1024]; 21550724Scg 21670134Scg /* get default project, if we fail just return gracefully */ 21770134Scg if ((defaultproject = getdefaultproj(pw->pw_name, &tempproject, &buf, 21870134Scg sizeof(buf))) > 0) { 21964881Scg /* set default project */ 22074763Scg if (setproject(defaultproject->pj_name, pw->pw_name, 22170134Scg TASK_NORMAL) != 0) 22270134Scg debug("setproject(%s): %s", defaultproject->pj_name, 22374763Scg strerror(errno)); 22470134Scg } else { 22570134Scg /* debug on getdefaultproj() error */ 226111909Sorion debug("getdefaultproj(%s): %s", pw->pw_name, strerror(errno)); 22789834Scg } 22889834Scg} 22989834Scg#endif /* USE_SOLARIS_PROJECTS */ 23070134Scg