sanchayanmaity/minix
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Changes to debug output, mostly rate limiting.

Browse source
This commit is contained in:
Philip Homburg 2008-02-22 11:00:06 +00:00
parent 3c2e122d6d
commit 4a86b1fea5
2 changed files with 84 additions and 23 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
kernel/system/do_devio.c
View file

@ -63,6 +63,19 @@ register message *m_ptr; /* pointer to request message */
}
if (i >= nr_io_range)
{
static int curr= 0, limit= 100, extra= 20;
if (curr < limit+extra)
{
kprintf("do_devio: port 0x%x (size %d) not allowed\n",
m_ptr->DIO_PORT, size);
} else if (curr == limit+extra)
{
kprintf("do_devio: no debug output for a while\n");
}
else if (curr == 2*limit-1)
limit *= 2;
curr++;
return EPERM;
}
}
@ -70,8 +83,19 @@ register message *m_ptr; /* pointer to request message */
doit:
if (m_ptr->DIO_PORT & (size-1))
{
kprintf("do_devio: unaligned port 0x%x (size %d)\n",
m_ptr->DIO_PORT, size);
static int curr= 0, limit= 100, extra= 20;
if (curr < limit+extra)
{
kprintf("do_devio: unaligned port 0x%x (size %d)\n",
m_ptr->DIO_PORT, size);
} else if (curr == limit+extra)
{
kprintf("do_devio: no debug output for a while\n");
}
else if (curr == 2*limit-1)
limit *= 2;
curr++;
return EPERM;
}

79
kernel/system/do_safecopy.c
View file

@ -63,16 +63,29 @@ endpoint_t *e_granter; /* new granter (magic grants) */
*/
if(RTS_ISSET(granter_proc, NO_PRIV) || !(priv(granter_proc)) ||
priv(granter_proc)->s_grant_table < 1) {
kprintf("grant verify failed in ep %d proc %d: "
kprintf("verify_grant: grant verify failed in ep %d proc %d: "
"no priv table, or no grant table\n",
granter, proc_nr);
return(EPERM);
}
if(priv(granter_proc)->s_grant_entries <= grant) {
kprintf("grant verify failed in ep %d proc %d: "
"grant %d out of range for table size %d\n",
granter, proc_nr, grant, priv(granter_proc)->s_grant_entries);
static int curr= 0, limit= 100, extra= 20;
if (curr < limit+extra)
{
kprintf(
"verify_grant: grant verify failed in ep %d proc %d: "
"grant %d out of range for table size %d\n",
granter, proc_nr, grant,
priv(granter_proc)->s_grant_entries);
} else if (curr == limit+extra)
{
kprintf("verify_grant: no debug output for a while\n");
}
else if (curr == 2*limit-1)
limit *= 2;
curr++;
return(EPERM);
}
@ -83,7 +96,7 @@ endpoint_t *e_granter; /* new granter (magic grants) */
*/
if(!(phys_grant = umap_local(granter_proc, D,
priv(granter_proc)->s_grant_table + sizeof(g)*grant, sizeof(g)))) {
kprintf("grant verify failed: umap failed\n");
kprintf("verify_grant: grant verify failed: umap failed\n");
return EPERM;
}
@ -91,13 +104,15 @@ endpoint_t *e_granter; /* new granter (magic grants) */
/* Check validity. */
if((g.cp_flags & (CPF_USED | CPF_VALID)) != (CPF_USED | CPF_VALID)) {
kprintf("grant verify failed: unused or invalid\n");
kprintf(
"verify_grant: grant verify failed: unused or invalid\n");
return EPERM;
}
/* Check access of grant. */
if(((g.cp_flags & access) != access)) {
kprintf("grant verify failed: access invalid; want %x, have %x\n",
kprintf(
"verify_grant: grant verify failed: access invalid; want %x, have %x\n",
access, g.cp_flags);
return EPERM;
}
@ -108,22 +123,26 @@ endpoint_t *e_granter; /* new granter (magic grants) */
*/
if(MEM_TOP - g.cp_u.cp_direct.cp_len <
g.cp_u.cp_direct.cp_start - 1) {
kprintf("direct grant verify failed: len too long\n");
kprintf(
"verify_grant: direct grant verify failed: len too long\n");
return EPERM;
}
/* Verify actual grantee. */
if(g.cp_u.cp_direct.cp_who_to != grantee && grantee != ANY) {
kprintf("direct grant verify failed: bad grantee\n");
kprintf(
"verify_grant: direct grant verify failed: bad grantee\n");
return EPERM;
}
/* Verify actual copy range. */
if((offset_in+bytes < offset_in) ||
offset_in+bytes > g.cp_u.cp_direct.cp_len) {
kprintf("direct grant verify failed: bad size or range. "
"granted %d bytes @ 0x%lx; wanted %d bytes @ 0x%lx\n",
g.cp_u.cp_direct.cp_len, g.cp_u.cp_direct.cp_start,
kprintf(
"verify_grant: direct grant verify failed: bad size or range. "
"granted %d bytes @ 0x%lx; wanted %d bytes @ 0x%lx\n",
g.cp_u.cp_direct.cp_len,
g.cp_u.cp_direct.cp_start,
bytes, offset_in);
return EPERM;
}
@ -136,23 +155,27 @@ endpoint_t *e_granter; /* new granter (magic grants) */
* magic grants.
*/
if(granter != FS_PROC_NR) {
kprintf("magic grant verify failed: granter (%d) "
"is not FS (%d)\n", granter, FS_PROC_NR);
kprintf(
"verify_grant: magic grant verify failed: granter (%d) "
"is not FS (%d)\n", granter, FS_PROC_NR);
return EPERM;
}
/* Verify actual grantee. */
if(g.cp_u.cp_magic.cp_who_to != grantee && grantee != ANY) {
kprintf("magic grant verify failed: bad grantee\n");
kprintf(
"verify_grant: magic grant verify failed: bad grantee\n");
return EPERM;
}
/* Verify actual copy range. */
if((offset_in+bytes < offset_in) ||
offset_in+bytes > g.cp_u.cp_magic.cp_len) {
kprintf("magic grant verify failed: bad size or range. "
"granted %d bytes @ 0x%lx; wanted %d bytes @ 0x%lx\n",
g.cp_u.cp_magic.cp_len, g.cp_u.cp_magic.cp_start,
kprintf(
"verify_grant: magic grant verify failed: bad size or range. "
"granted %d bytes @ 0x%lx; wanted %d bytes @ 0x%lx\n",
g.cp_u.cp_magic.cp_len,
g.cp_u.cp_magic.cp_start,
bytes, offset_in);
return EPERM;
}
@ -161,7 +184,8 @@ endpoint_t *e_granter; /* new granter (magic grants) */
*offset_result = g.cp_u.cp_magic.cp_start + offset_in;
*e_granter = g.cp_u.cp_magic.cp_who_from;
} else {
kprintf("grant verify failed: unknown grant type\n");
kprintf(
"verify_grant: grant verify failed: unknown grant type\n");
return EPERM;
}
@ -199,8 +223,21 @@ int access; /* CPF_READ for a copy from granter to grantee, CPF_WRITE
/* Verify permission exists. */
if((r=verify_grant(granter, grantee, grantid, bytes, access,
g_offset, &v_offset, &new_granter)) != OK) {
kprintf("grant %d verify to copy %d->%d by %d failed: err %d\n",
grantid, *src, *dst, grantee, r);
static int curr= 0, limit= 100, extra= 20;
if (curr < limit+extra)
{
kprintf(
"grant %d verify to copy %d->%d by %d failed: err %d\n",
grantid, *src, *dst, grantee, r);
} else if (curr == limit+extra)
{
kprintf(
"do_safecopy`safecopy: no debug output for a while\n");
}
else if (curr == 2*limit-1)
limit *= 2;
curr++;
return r;
}