| 1 | /*␊ |
| 2 | * Copyright 2009 netkas␊ |
| 3 | */␊ |
| 4 | ␊ |
| 5 | #include "libsaio.h"␊ |
| 6 | #include "boot.h"␊ |
| 7 | #include "bootstruct.h"␊ |
| 8 | #include "Platform.h"␊ |
| 9 | ␊ |
| 10 | #ifndef DEBUG_PCIROOT␊ |
| 11 | #define DEBUG_PCIROOT 1␊ |
| 12 | #endif␊ |
| 13 | ␊ |
| 14 | #if DEBUG_PCIROOT␊ |
| 15 | #define DBG(x...) printf(x)␊ |
| 16 | #else␊ |
| 17 | #define DBG(x...)␊ |
| 18 | #endif␊ |
| 19 | ␊ |
| 20 | static int rootuid = 10; //value means function wasnt ran yet␊ |
| 21 | ␊ |
| 22 | ␊ |
| 23 | int getPciRootUID(void)␊ |
| 24 | {␊ |
| 25 | ␉const char *val;␊ |
| 26 | ␉int len;␊ |
| 27 | ␊ |
| 28 | ␉if (rootuid < 10) return rootuid;␊ |
| 29 | ␉rootuid = 0;␉/* default uid = 0 */␊ |
| 30 | ␊ |
| 31 | ␉if (getValueForKey(kPCIRootUID, &val, &len, &bootInfo->bootConfig)) {␊ |
| 32 | ␉␉if (isdigit(val[0])) rootuid = val[0] - '0';␊ |
| 33 | ␉␉␊ |
| 34 | ␉␉if ( (rootuid >= 0) && (rootuid < 10) ) ␊ |
| 35 | ␉␉␉goto out;␊ |
| 36 | ␉␉else␊ |
| 37 | ␉␉␉rootuid = 0;␊ |
| 38 | ␉}␉␊ |
| 39 | ␉␊ |
| 40 | ␉/* PCEFI compatibility */␊ |
| 41 | ␉if (getValueForKey("-pci0", &val, &len, &bootInfo->bootConfig)) {␊ |
| 42 | ␉␉rootuid = 0;␊ |
| 43 | ␉}␊ |
| 44 | ␉else if (getValueForKey("-pci1", &val, &len, &bootInfo->bootConfig)) {␊ |
| 45 | ␉␉rootuid = 1;␊ |
| 46 | ␉}␊ |
| 47 | out:␊ |
| 48 | ␉verbose("Using PCI-Root-UID value: %d\n", rootuid);␊ |
| 49 | ␉return rootuid;␊ |
| 50 | }␊ |
| 51 | |
