Differential D13664 Diff 36474 ksysguardd/Linux/softraid.c

Changeset View

Standalone View

View Options

ksysguardd/Linux/softraid.c

Show First 20 Lines • Show All 209 Lines • ▼ Show 20 Line(s)205void getMdadmDetail( ArrayInfo* MyArray ) {
210 char sensorName[128]; 210​ char sensorName[128];
211 char arrayDevice[ARRAYNAMELEN + 5 + 1]; 211​ char arrayDevice[ARRAYNAMELEN + 5 + 1];
212 char format[ 32 ]; 212​ char format[ 32 ];
213 char lineBuf[ 1024 ]; 213​ char lineBuf[ 1024 ];
214 char mdadmStatBuf[ MDADMSTATBUFSIZE ]; /* Buffer for mdadm --detail */ 214​ char mdadmStatBuf[ MDADMSTATBUFSIZE ]; /* Buffer for mdadm --detail */
215 char* mdadmStatBufP; 215​ char* mdadmStatBufP;
216 216​
217 /* Create a pipe */ 217​ /* Create a pipe */
218 if(pipe(fd) == -1) 218​ if(pipe2(fd, O_CLOEXEC) == -1)
219 { 219​ {
220 perror("Could not create a pipe to launch mdadm."); 220​ perror("Could not create a pipe to launch mdadm.");
221 exit(1); 221​ exit(1);
222 } 222​ }
223 223​
224 /* Fork */ 224​ /* Fork */
225 if((ChildPID = fork()) == -1) 225​ if((ChildPID = fork()) == -1)
226 { 226​ {
227 perror("Could not fork to launch mdadm."); 227​ perror("Could not fork to launch mdadm.");
228 exit(1); 228​ exit(1);
229 } 229​ }
230 230​
231 /* Child will execute the program, parent will listen. */ 231​ /* Child will execute the program, parent will listen. */
232 232​
233 if (ChildPID == 0) { 233​ if (ChildPID == 0) {
234 /* Child process */ 234​ /* Child process */
235 235​
236 /* Child will execute the program, parent will listen. */ 236​ /* Child will execute the program, parent will listen. */
237 /* Close stdout, duplicate the input side of pipe to stdout */ 237​ /* Close stdout, duplicate the input side of pipe to stdout */
238 dup2(fd[1], 1); 238​ dup2(fd[1], 1);
239 /* Close output side of pipe */ ​
240 close(fd[0]); 239​ close(fd[0]);
241 close(2); 240​ close(2);
242 241​
243 snprintf( arrayDevice, sizeof( arrayDevice ), "/dev/%s", MyArray->ArrayName ); 242​ snprintf( arrayDevice, sizeof( arrayDevice ), "/dev/%s", MyArray->ArrayName );
244 execl ("/sbin/mdadm", "mdadm", "--detail", arrayDevice, (char *)0); 243​ execl ("/sbin/mdadm", "mdadm", "--detail", arrayDevice, (char *)0);
245 exit(0); /* In case /sbin/mdadm isn't found */ 244​ exit(0); /* In case /sbin/mdadm isn't found */
246 /* Child is now dead, as per our request */ 245​ /* Child is now dead, as per our request */
247 } 246​ }
248 247​
249 /* Parent process */ 248​ /* Parent process */
250 249​
251 /* Close input side of pipe */ ​
252 close(fd[1]); ​
253 ​
254 waitpid( ChildPID, 0, 0); 250​ waitpid( ChildPID, 0, 0);
255 251​
256 /* Fill mdadmStatBuf with pipe's output */ 252​ /* Fill mdadmStatBuf with pipe's output */
257 nbytes = read( fd[0], mdadmStatBuf, MDADMSTATBUFSIZE-1 ); 253​ nbytes = read( fd[0], mdadmStatBuf, MDADMSTATBUFSIZE-1 );
258 if (nbytes >= 0) 254​ if (nbytes >= 0)
259 mdadmStatBuf[nbytes] = '\0'; 255​ mdadmStatBuf[nbytes] = '\0';
260 256​
261 /* Now, go through mdadmStatBuf line by line. Register monitors along the way */ 257​ /* Now, go through mdadmStatBuf line by line. Register monitors along the way */
Show All 30 Lines286 else if ( sscanf(lineBuf, "Preferred Minor : %d", &MyArray->PreferredMinor) == 1 ) {
292 if ( !MyArray->PreferredMinorIsRegistered ) { 288​ if ( !MyArray->PreferredMinorIsRegistered ) {
293 sprintf(sensorName, "SoftRaid/%s/PreferredMinor", MyArray->ArrayName); 289​ sprintf(sensorName, "SoftRaid/%s/PreferredMinor", MyArray->ArrayName);
294 registerMonitor(sensorName, "integer", printArrayAttribute, printArrayAttributeInfo, StatSM ); 290​ registerMonitor(sensorName, "integer", printArrayAttribute, printArrayAttributeInfo, StatSM );
295 MyArray->PreferredMinorIsRegistered = true; 291​ MyArray->PreferredMinorIsRegistered = true;
296 } 292​ }
297 } 293​ }
298 } 294​ }
299 295​
296​ /* Close pipe */
297​ close(fd[0]);
298​ close(fd[1]);
299​
300 /* Note: Don't test NumBlocksIsAlive, because it hasn't been set yet */ 300​ /* Note: Don't test NumBlocksIsAlive, because it hasn't been set yet */
301 if ( (!MyArray->ArraySizeIsAlive && MyArray->ArraySizeIsRegistered ) || 301​ if ( (!MyArray->ArraySizeIsAlive && MyArray->ArraySizeIsRegistered ) ||
302 (!MyArray->UsedDeviceSizeIsAlive && MyArray->UsedDeviceSizeIsRegistered ) || 302​ (!MyArray->UsedDeviceSizeIsAlive && MyArray->UsedDeviceSizeIsRegistered ) ||
303 (!MyArray->PreferredMinorIsAlive && MyArray->PreferredMinorIsRegistered ) 303​ (!MyArray->PreferredMinorIsAlive && MyArray->PreferredMinorIsRegistered )
304 ) { 304​ ) {
305 print_error( "RECONFIGURE" ); 305​ print_error( "RECONFIGURE" );
306 log_error( "Soft raid device disappeared" ); 306​ log_error( "Soft raid device disappeared" );
307 return; 307​ return;
▲ Show 20 Lines • Show All 308 Lines • Show Last 20 Lines