Return to key.c CVS log

Up to [Plan 9 NeXT] / lucent / sys / src / 9 / boot

Annotation of lucent/sys/src/9/boot/key.c, revision 1.1

1.1     ! root        1: #include <u.h>
        !             2: #include <libc.h>
        !             3: #include <auth.h>
        !             4: #include <../boot/boot.h>
        !             5: 
        !             6: static void
        !             7: check(void *x, int len, uchar sum, char *msg)
        !             8: {
        !             9:        if(nvcsum(x, len) == sum)
        !            10:                return;
        !            11:        memset(x, 0, len);
        !            12:        kflag = 1;
        !            13:        warning(msg);
        !            14: }
        !            15: 
        !            16: /*
        !            17:  *  get info out of nvram.  since there isn't room in the PC's nvram use
        !            18:  *  a disk partition there.
        !            19:  */
        !            20: void
        !            21: key(int islocal, Method *mp)
        !            22: {
        !            23:        int fd, safeoff;
        !            24:        Nvrsafe safe;
        !            25:        char password[20];
        !            26: 
        !            27:        USED(islocal);
        !            28:        USED(mp);
        !            29: 
        !            30:        if(strcmp(cputype, "sparc") == 0){
        !            31:                fd = open("#r/nvram", ORDWR);
        !            32:                safeoff = 1024+850;
        !            33:        } else if(strcmp(cputype, "386") == 0){
        !            34:                fd = open("#H/hd0nvram", ORDWR);
        !            35:                if(fd < 0)
        !            36:                        fd = open("#w/sd0nvram", ORDWR);
        !            37:                safeoff = 0x0;
        !            38:        } else {
        !            39:                fd = open("#r/nvram", ORDWR);
        !            40:                safeoff = 1024+900;
        !            41:        }
        !            42: 
        !            43:        if(fd < 0
        !            44:        || seek(fd, safeoff, 0) < 0
        !            45:        || read(fd, &safe, sizeof safe) != sizeof safe){
        !            46:                memset(&safe, 0, sizeof(safe));
        !            47:                warning("can't read nvram");
        !            48:        }
        !            49:        check(safe.machkey, DESKEYLEN, safe.machsum, "bad nvram key");
        !            50:        check(safe.authid, NAMELEN, safe.authidsum, "bad authentication id");
        !            51:        check(safe.authdom, DOMLEN, safe.authdomsum, "bad authentication domain");
        !            52:        if(kflag){
        !            53:                do
        !            54:                        getpasswd(password, sizeof password);
        !            55:                while(!passtokey(safe.machkey, password));
        !            56:                outin(0, "authid", safe.authid, sizeof(safe.authid));
        !            57:                outin(0, "authdom", safe.authdom, sizeof(safe.authdom));
        !            58:                safe.machsum = nvcsum(safe.machkey, DESKEYLEN);
        !            59:                safe.authidsum = nvcsum(safe.authid, sizeof(safe.authid));
        !            60:                safe.authdomsum = nvcsum(safe.authdom, sizeof(safe.authdom));
        !            61:                if(seek(fd, safeoff, 0) < 0
        !            62:                || write(fd, &safe, sizeof safe) != sizeof safe)
        !            63:                        warning("can't write key to nvram");
        !            64:        }
        !            65:        close(fd);
        !            66: 
        !            67:        /* set host's key */
        !            68:        if(writefile("#c/key", safe.machkey, DESKEYLEN) < 0)
        !            69:                fatal("#c/key");
        !            70: 
        !            71:        /* set host's owner (and uid of current process) */
        !            72:        if(writefile("#c/hostowner", safe.authid, strlen(safe.authid)) < 0)
        !            73:                fatal("#c/hostowner");
        !            74: 
        !            75:        /* set host's domain */
        !            76:        if(writefile("#c/hostdomain", safe.authdom, strlen(safe.authdom)) < 0)
        !            77:                fatal("#c/hostdomain");
        !            78: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.