diff options
| author | Jacob Moody <moody@posixcafe.org> | 2022-05-28 02:23:29 +0000 |
|---|---|---|
| committer | Jacob Moody <moody@posixcafe.org> | 2022-05-28 02:23:29 +0000 |
| commit | e9bb7876e1bd7f9aaef4e1cd0c64c97f411ffde5 (patch) | |
| tree | 161d07a002c1b9623afff61d72d3d5703a40a252 /sys/src/9/port/sysproc.c | |
| parent | 3351b674802d5a69ddb6d4d0354c0e034804b0c1 (diff) | |
kernel: add chdev command to devcons
Diffstat (limited to 'sys/src/9/port/sysproc.c')
| -rw-r--r-- | sys/src/9/port/sysproc.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/sys/src/9/port/sysproc.c b/sys/src/9/port/sysproc.c index b3b7a0439..bb25b2b4b 100644 --- a/sys/src/9/port/sysproc.c +++ b/sys/src/9/port/sysproc.c @@ -34,6 +34,7 @@ sysrfork(va_list list) Egrp *oeg; ulong pid, flag; Mach *wm; + char *devs; flag = va_arg(list, ulong); /* Check flags before we commit */ @@ -44,6 +45,11 @@ sysrfork(va_list list) if((flag & (RFENVG|RFCENVG)) == (RFENVG|RFCENVG)) error(Ebadarg); + /* + * Code using RFNOMNT expects to block all but + * the following devices. + */ + devs = "|decp"; if((flag&RFPROC) == 0) { if(flag & (RFMEM|RFNOWAIT)) error(Ebadarg); @@ -60,12 +66,12 @@ sysrfork(va_list list) up->pgrp = newpgrp(); if(flag & RFNAMEG) pgrpcpy(up->pgrp, opg); - /* inherit noattach */ - up->pgrp->noattach = opg->noattach; + /* inherit notallowed */ + memmove(up->pgrp->notallowed, opg->notallowed, sizeof up->pgrp->notallowed); closepgrp(opg); } if(flag & RFNOMNT) - up->pgrp->noattach = 1; + devmask(up->pgrp, 1, devs); if(flag & RFREND) { org = up->rgrp; up->rgrp = newrgrp(); @@ -177,15 +183,15 @@ sysrfork(va_list list) p->pgrp = newpgrp(); if(flag & RFNAMEG) pgrpcpy(p->pgrp, up->pgrp); - /* inherit noattach */ - p->pgrp->noattach = up->pgrp->noattach; + /* inherit notallowed */ + memmove(p->pgrp->notallowed, up->pgrp->notallowed, sizeof p->pgrp->notallowed); } else { p->pgrp = up->pgrp; incref(p->pgrp); } if(flag & RFNOMNT) - p->pgrp->noattach = 1; + devmask(p->pgrp, 1, devs); if(flag & RFREND) p->rgrp = newrgrp(); |