1993/0501/boot/boot.c (diff list | history)

1993/0402/sys/src/9/boot/boot.c:1,14 – 1993/0501/sys/src/9/boot/boot.c:1,12 (short | long | prev | next)
1992/0317		#include <u.h> #include <libc.h>
1993/0330		#include <auth.h>
1993/0501		#include <fcall.h>
1992/0318		#include "../boot/boot.h"
1992/0317		#define DEFSYS "bootes" typedef struct Net Net; typedef struct Flavor Flavor; int printcol;                  char cputype[NAMELEN]; char terminal[NAMELEN]; char sys[2*NAMELEN];
1993/0402/sys/src/9/boot/boot.c:15,29 – 1993/0501/sys/src/9/boot/boot.c:13,27
1992/0317		char username[NAMELEN];
1992/0522		char bootfile[3*NAMELEN];
1992/0530		char conffile[NAMELEN];
1992/0317		int mflag; int fflag; int kflag;
1992/0322		int aflag;
1992/0323		int pflag;
1993/0330		int afd = -1;
1992/0317
1993/0501		int printcol; int mflag; int fflag; int kflag; int aflag; int pflag; int afd = -1;
1992/0530		static void swapproc(void);
1993/0501		static void recover(Method*);
1992/0530		static Method *rootserver(char*);
1992/0317		void
1993/0402/sys/src/9/boot/boot.c:87,92 – 1993/0501/sys/src/9/boot/boot.c:85,99
1992/0317		*/
1992/0318		(*pword)(islocal, mp);
1992/0317
1993/0501		switch(rfork(RFPROC|RFNAMEG|RFFDG)) { case -1: print("failed to start recover: %r\n"); break; case 0: recover(mp); break; }
1992/0317		/* * connect to the root file system */
1993/0402/sys/src/9/boot/boot.c:93,98 – 1993/0501/sys/src/9/boot/boot.c:100,106
1992/0317		fd = (*mp->connect)(); if(fd < 0) fatal("can't connect to file server");
1993/0501		nop(fd);
1992/0909		if(!islocal && !ishybrid){
1992/0318		if(cfs) fd = (*cfs)(fd);
1993/0402/sys/src/9/boot/boot.c:132,138 – 1993/0501/sys/src/9/boot/boot.c:140,145
1992/0317		settime(islocal);
1993/0330		close(afd);
1992/0317		swapproc();
1993/0330		remove("#e/password");
1992/0317		sprint(cmd, "/%s/init", cputype);
1992/0322		sprint(flags, "-%s%s%s", cpuflag ? "c" : "t", mflag ? "m" : "", aflag ? "a" : "");
1993/0402/sys/src/9/boot/boot.c:183,188 – 1993/0501/sys/src/9/boot/boot.c:190,233
1992/0520		return 0; /* not reached */
1992/0317		}
1993/0501		int nop(int fd) { int n; Fcall hdr; char buf[128]; print("boot: nop..."); hdr.type = Tnop; hdr.tag = NOTAG; n = convS2M(&hdr, buf); if(write(fd, buf, n) != n){ fatal("write nop"); return 0; } reread: n = read(fd, buf, sizeof buf); if(n <= 0){ fatal("read nop"); return 0; } if(n == 2) goto reread; if(convM2S(buf, &hdr, n) == 0) { fatal("format nop"); return 0; } if(hdr.type != Rnop){ fatal("not Rnop"); return 0; } if(hdr.tag != NOTAG){ fatal("tag not NOTAG"); return 0; } return 1; }
1992/0530		static void
1992/0317		swapproc(void) {
1993/0402/sys/src/9/boot/boot.c:195,198 – 1993/0501/sys/src/9/boot/boot.c:240,318
1992/0317		} if(write(fd, "start", 5) <= 0) warning("starting swap kproc");
1993/0501		close(fd); } void reattach(int rec, Method *amp, char *buf) { char *mp; int fd, n, sv[2]; char tmp[64], *p; mp = strchr(buf, ' '); if(mp == 0) goto fail; *mp++ = '\0'; p = strrchr(buf, '/'); if(p == 0) goto fail; *p = '\0'; sprint(tmp, "%s/remote", buf); fd = open(tmp, OREAD); if(fd < 0) goto fail; n = read(fd, tmp, sizeof(tmp)); if(n < 0) goto fail; close(fd); tmp[n-1] = '\0'; print("boot: Service %s down, wait...\n", tmp); p = strrchr(buf, '/'); if(p == 0) goto fail; *p = '\0'; while(plumb(buf, tmp, sv, 0) < 0) sleep(30); nop(sv[1]); doauthenticate(sv[1], amp); print("boot: Service %s Ok\n", tmp); n = sprint(tmp, "%d %s", sv[1], mp); if(write(rec, tmp, n) < 0) { errstr(tmp); print("write recover: %s\n", tmp); } exits(0); fail: print("recover fail: %s\n", buf); exits(0); } void recover(Method *mp) { int fd, n; char buf[256]; fd = open("#/./recover", ORDWR); if(fd < 0) exits(0); for(;;) { n = read(fd, buf, sizeof(buf)); if(n < 0) exits(0); buf[n] = '\0'; if(fork() == 0) reattach(fd, mp, buf); }
1992/0317		}