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annotate ie-virsh.c @ 9:ea51e779b381

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 13 Nov 2012 16:35:34 +0900
parents bff4054ed58f
children 422041acef4c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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1
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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2
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
3 #include <stdlib.h>
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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4 #include <unistd.h>
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5
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parents:
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6 #include <stdio.h>
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7 #include <sys/types.h>
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8 #include <unistd.h>
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9 #include <signal.h>
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parents: 1
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10 #include <string.h>
0
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11
2
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12 #include <sys/types.h>
1
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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13 #include <regex.h>
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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14
0
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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15 /********************************************
2
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 1
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16 * Virsh Wrapper - Secure Yourself *
0
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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17 * *
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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18 * 2007 - Mike Golvach - eggi@comcast.net *
2
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 1
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19 * 2012 - Shinji KONO kono@ie.u-rykyu.ac.jp *
0
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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20 * *
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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21 * Usage: COMMAND [start|stop] *
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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22 * *
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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23 ********************************************/
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24
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25 /* Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License */
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26
2
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 1
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27 #define command "/usr/bin/virsh"
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 1
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28 #define list_command "/usr/bin/virsh list --all"
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29 #define start_command "start"
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30 #define stop_command "destroy"
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31 #define define_command "define"
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32 #define undefine_command "undefine"
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Shoshi TAMAKI <shoshi@cr.ie.u-ryukyu.ac.jp>
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33 #define dumpxml_command "dumpxml"
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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34
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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35 static char bad_name[] = "Bad vmname. Try students/e11/e115711/01 or teachers/kono/02\n";
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36
1
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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37 #define VMNAME_MAX (512)
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38
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39 typedef struct vmlist {
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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40 char name[VMNAME_MAX];
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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41 struct vmlist *next;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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42 } VMLIST, *VMLISTPTR;
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43
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44 #define NEW(type) ((type*)malloc(sizeof(type)))
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45
0
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46 /* Define global variables */
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47
1
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48 VMLISTPTR
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49 get_vmlist(regex_t *list_pattern)
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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50 {
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51 VMLISTPTR list = NEW(VMLIST);
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52 VMLISTPTR p = list ;
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53 p->name[0] = 0;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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54 p->next = 0;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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55 FILE *fp = popen(list_command,"r");
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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56 while(fgets(p->name,VMNAME_MAX,fp)!=NULL) {
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57 if (regexec(list_pattern, p->name, (size_t) 0, NULL, 0)) continue;
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58 p->next = NEW(VMLIST);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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59 p = p->next;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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60 }
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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61 p->name[0] = 0;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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62 pclose(fp);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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63 return list;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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64 }
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65
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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66 void
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67 print_vmlist(VMLISTPTR list)
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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68 {
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69 for(;list && list->name[0]; list=list->next) {
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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70 fprintf(stdout, " %s\n",list->name);
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71 }
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72 }
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73
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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74 int
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75 check_vmlist_name(VMLISTPTR list, char *arg)
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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76 {
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77 for(;list && list->name[0]; list=list->next) {
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78 if (strstr(list->name,arg)!=0) return 1;
1
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79 }
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80 return 0;
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81 }
0
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82
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83 int
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84 check_name(const char *p)
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85 {
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86 if (!p) return 1;
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87 for(;*p;p++) {
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88 char c = *p;
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89 if (c<=' ') return 1;
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parents: 5
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90 if (('a'<=c && c<='z') ||
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91 ('0'<=c && c<='9') ||
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92 ('/'==c ) ||
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93 ('-'==c )) continue;
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94 return 1;
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95 }
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96 return 0;
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97 }
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98
3
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99 void
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100 usage()
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101 {
9
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102 printf("Usage: COMMAND [define|list|start|destroy|xmldump|undefine] [vm-name]\n");
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103 printf(" vm-name should be students/e11/e115711/01 or teachers/kono/02\n");
3
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104 }
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105
0
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106 /* main(int argc, char **argv) - main process loop */
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107
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108 int main(int argc, char **argv)
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109 {
1
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110 int gid;
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parents: 0
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111 int uid;
0
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112
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113 /* Set euid and egid to actual user */
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114
1
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115 char *name = getlogin();
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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116 uid = getuid();
0
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117 gid = getgid();
1
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parents: 0
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118 printf("uid %d gid %d name %s\n", uid,gid,name);
0
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119 setegid(getgid());
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120 seteuid(getuid());
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121
1
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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122 regex_t *pattern = NEW(regex_t);
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parents: 1
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123 if (regcomp(pattern, name, 0) != 0) {
1
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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124 exit(0);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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125 }
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
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126
0
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127 /* Confirm user is in GROUP(999) group */
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parents:
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128
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parents:
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129 /*
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parents:
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130 if ( gid != 999 ) {
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131 printf("User Not Authorized! Exiting...\n");
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parents:
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132 exit(1);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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133 }
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parents:
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134 */
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parents:
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135
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136 /* Set uid, gid, euid and egid to root */
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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137
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parents:
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138 setegid(0);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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139 seteuid(0);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
140 setgid(0);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
141 setuid(0);
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parents:
diff changeset
142
7
bff4054ed58f looks like working...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
143
6
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
144 if (argc>=3) {
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
145 if ( strncmp(argv[1], "define", 6) == 0 ) {
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
146 if (regexec(pattern, argv[2], (size_t) 0, NULL, 0)) {
9
ea51e779b381 error message
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 7
diff changeset
147 fprintf(stderr, bad_name);
6
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
148 exit(0);
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
149 }
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
150 if (check_name(argv[2])) {
9
ea51e779b381 error message
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 7
diff changeset
151 fprintf(stderr, bad_name);
6
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
152 exit(0);
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
153 }
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
154 char exec[1024];
7
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
155 strncpy(exec, "/usr/local/bin/newvm.py -c /etc/libvirt/qemu/fedora16.xml -n ",900);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
156 strncat(exec, argv[2],1000);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
157 fprintf(stdout, "excuting %s\n",exec );
6
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
158 system(exec);
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
159 }
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
160 }
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
161
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parents: 5
diff changeset
162
1
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
163 VMLISTPTR vmlist = get_vmlist(pattern);
1a8257a34493 no compile errors
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
164
7
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
165 char name_xml[1024];
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
166 name_xml[0] = 0;
5
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 4
diff changeset
167 if (argc>=3) {
6
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parents: 5
diff changeset
168 if ( strncmp(argv[1], "define", 6) == 0 ) {
7
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
169 strncpy(name_xml,argv[2],900);
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
170 strncat(name_xml,".xml",1000);
6
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
171 } else if (check_vmlist_name(vmlist, argv[2])==0) {
9
ea51e779b381 error message
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 7
diff changeset
172 fprintf(stderr, bad_name);
1
1a8257a34493 no compile errors
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
173 print_vmlist(vmlist);
1a8257a34493 no compile errors
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
174 exit(0);
1a8257a34493 no compile errors
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
175 }
3
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 2
diff changeset
176 } else if (argc<2) {
5
9ecd833b9570 filtering worked.
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 4
diff changeset
177 print_vmlist(vmlist);
3
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 2
diff changeset
178 usage();
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parents: 2
diff changeset
179 exit(0);
1
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
180 }
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
181
0
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
182 /* Check argv for proper arguments and run
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
183 * the corresponding script, if invoked.
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
184 */
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parents:
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185
3
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 2
diff changeset
186 if ( argv[1]==0 || strncmp(argv[1], "list", 4) == 0 ) {
1
1a8257a34493 no compile errors
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
187 print_vmlist(vmlist);
1a8257a34493 no compile errors
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
188 } else if ( strncmp(argv[1], "start", 5) == 0 ) {
1a8257a34493 no compile errors
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
189 if (execl(command, command, start_command, argv[2], NULL) < 0) {
0
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
190 perror("Execl:");
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
191 }
5
9ecd833b9570 filtering worked.
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 4
diff changeset
192 } else if ( strncmp(argv[1], "destroy", 4) == 0 ) {
1
1a8257a34493 no compile errors
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
193 if (execl(command, command, stop_command, argv[2], NULL) < 0) {
0
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
194 perror("Execl:");
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
195 }
4
349bbbd3fbd5 added dumpxml command
Shoshi TAMAKI <shoshi@cr.ie.u-ryukyu.ac.jp>
parents: 3
diff changeset
196 } else if ( strncmp(argv[1], "dumpxml", 7) == 0 ) {
349bbbd3fbd5 added dumpxml command
Shoshi TAMAKI <shoshi@cr.ie.u-ryukyu.ac.jp>
parents: 3
diff changeset
197 if (execl(command, command, dumpxml_command, argv[2], NULL) < 0) {
349bbbd3fbd5 added dumpxml command
Shoshi TAMAKI <shoshi@cr.ie.u-ryukyu.ac.jp>
parents: 3
diff changeset
198 perror("Execl:");
349bbbd3fbd5 added dumpxml command
Shoshi TAMAKI <shoshi@cr.ie.u-ryukyu.ac.jp>
parents: 3
diff changeset
199 }
6
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
200 } else if ( strncmp(argv[1], "define", 6) == 0 ) {
7
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
201 chdir("/etc/libvirt/qemu");
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 6
diff changeset
202 if (execl(command, command, define_command, name_xml, NULL) < 0) {
6
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
203 perror("Execl:");
25c14d1144a8 add xml generation and define
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 5
diff changeset
204 }
9
ea51e779b381 error message
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 7
diff changeset
205 } else if ( strncmp(argv[1], "undefine", 8) == 0 ) {
ea51e779b381 error message
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 7
diff changeset
206 chdir("/etc/libvirt/qemu");
ea51e779b381 error message
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 7
diff changeset
207 if (execl(command, command, undefine_command, argv[2], NULL) < 0) {
ea51e779b381 error message
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 7
diff changeset
208 perror("Execl:");
ea51e779b381 error message
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 7
diff changeset
209 }
0
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
210 } else {
3
203445eb53a8 add xml generator.
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 2
diff changeset
211 usage();
203445eb53a8 add xml generator.
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 2
diff changeset
212 exit(1);
0
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
213 }
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
214 exit(0);
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
215 }
7785dd06c62f Virsh Wrapper initial version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
diff changeset
216
1
1a8257a34493 no compile errors
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
217 /* end */