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- /*
- * This file is part of the UCB release of Plan 9. It is subject to the license
- * terms in the LICENSE file found in the top-level directory of this
- * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
- * part of the UCB release of Plan 9, including this file, may be copied,
- * modified, propagated, or distributed except according to the terms contained
- * in the LICENSE file.
- */
- #include <u.h>
- #include <libc.h>
- #include <ip.h>
- #include "dat.h"
- #include "protos.h"
- typedef struct{
- uint8_t verflags;
- uint8_t error;
- uint8_t major[2];
- uint8_t minor;
- uint8_t cmd;
- uint8_t tag[4];
- }Hdr;
- enum{
- Hsize = 10,
- };
- enum{
- Omajor,
- Ominor,
- Ocmd,
- };
- static Mux p_mux[] = {
- {"aoeata", 0},
- {"aoecmd", 1},
- {"aoemask", 2},
- {"aoerr", 3},
- {0},
- };
- static Field p_fields[] =
- {
- {"shelf", Fnum, Ominor, "shelf", },
- {"slot", Fnum, Omajor, "slot", },
- {"cmd", Fnum, Ocmd, "cmd", },
- {0}
- };
- static void
- p_compile(Filter *f)
- {
- Mux *m;
- if(f->op == '='){
- compile_cmp(aoe.name, f, p_fields);
- return;
- }
- for(m = p_mux; m->name; m++)
- if(strcmp(f->s, m->name) == 0){
- f->pr = m->pr;
- f->ulv = m->val;
- f->subop = Ocmd;
- return;
- }
- sysfatal("unknown aoe field: %s", f->s);
- }
- static int
- p_filter(Filter *f, Msg *m)
- {
- Hdr *h;
- if(m->pe - m->ps < Hsize)
- return 0;
- h = (Hdr*)m->ps;
- m->ps += Hsize;
- switch(f->subop){
- case Omajor:
- return NetS(h->major) == f->ulv;
- case Ominor:
- return h->minor == f->ulv;
- case Ocmd:
- return h->cmd == f->ulv;
- }
- return 0;
- }
- static int
- p_seprint(Msg *m)
- {
- Hdr *h;
- if(m->pe - m->ps < Hsize)
- return 0;
- h = (Hdr*)m->ps;
- m->ps += Hsize;
- demux(p_mux, h->cmd, h->cmd, m, &dump);
- m->p = seprint(m->p, m->e, "ver=%d flag=%4b err=%d %d.%d cmd=%x tag=%x",
- h->verflags >> 4, h->verflags & 0xf, h->error, NetS(h->major),
- h->minor, h->cmd, NetL(h->tag));
- return 0;
- }
- Proto aoe =
- {
- "aoe",
- p_compile,
- p_filter,
- p_seprint,
- p_mux,
- "%lu",
- p_fields,
- defaultframer,
- };
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