Commit 4b03f64b authored by Martin Mareš's avatar Martin Mareš
Browse files

Aesthetical tweaks (asterisk spells `asterisk' etc.)

parent 159fa4ce
......@@ -19,7 +19,8 @@ as_path_prepend(struct linpool *pool, struct adata *olda, int as)
{
struct adata *newa;
if (olda->length && olda->data[0] == 2 && olda->data[1] < 255) /* Starting with sequence => just prepend the AS number */
if (olda->length && olda->data[0] == AS_PATH_SEQUENCE &&
olda->data[1] < 255) /* Starting with sequence => just prepend the AS number */
{
newa = lp_alloc(pool, sizeof(struct adata) + olda->length + 2);
newa->length = olda->length + 2;
......@@ -90,37 +91,40 @@ as_path_getlen(struct adata *path)
u8 *q = p+path->length;
int len;
while (p<q) {
switch (*p++) {
case 1: len = *p++; res++; p += 2*len; break;
case 2: len = *p++; res+=len; p += 2*len; break;
default: bug("This should not be in path");
while (p<q)
{
switch (*p++)
{
case AS_PATH_SET: len = *p++; res++; p += 2*len; break;
case AS_PATH_SEQUENCE: len = *p++; res+=len; p += 2*len; break;
default: bug("as_path_getlen: Invalid path segment");
}
}
}
return res;
}
#define MASK_PLUS do { mask = mask->next; if (!mask) return next == q; \
asterix = (mask->val == PM_ANY); \
if (asterix) { mask = mask->next; if (!mask) { return 1; } } \
asterisk = (mask->val == PM_ANY); \
if (asterisk) { mask = mask->next; if (!mask) { return 1; } } \
} while(0)
int
as_path_match(struct adata *path, struct f_path_mask *mask)
{
int i;
int asterix = 0;
int asterisk = 0;
u8 *p = path->data;
u8 *q = p+path->length;
int len;
u8 *next;
asterix = (mask->val == PM_ANY);
if (asterix) { mask = mask->next; if (!mask) { return 1; } }
asterisk = (mask->val == PM_ANY);
if (asterisk)
{ mask = mask->next; if (!mask) return 1; }
while (p<q) {
switch (*p++) {
case 1: /* This is a set */
case AS_PATH_SET:
len = *p++;
{
u8 *p_save = p;
......@@ -128,30 +132,30 @@ as_path_match(struct adata *path, struct f_path_mask *mask)
retry:
p = p_save;
for (i=0; i<len; i++) {
if (asterix && (get_u16(p) == mask->val)) {
if (asterisk && (get_u16(p) == mask->val)) {
MASK_PLUS;
goto retry;
}
if (!asterix && (get_u16(p) == mask->val)) {
if (!asterisk && (get_u16(p) == mask->val)) {
p = next;
MASK_PLUS;
goto okay;
}
p+=2;
}
if (!asterix)
if (!asterisk)
return 0;
okay:
}
break;
case 2: /* This is a sequence */
case AS_PATH_SEQUENCE:
len = *p++;
for (i=0; i<len; i++) {
next = p+2;
if (asterix && (get_u16(p) == mask->val))
if (asterisk && (get_u16(p) == mask->val))
MASK_PLUS;
else if (!asterix) {
else if (!asterisk) {
if (get_u16(p) != mask->val)
return 0;
MASK_PLUS;
......@@ -161,7 +165,7 @@ as_path_match(struct adata *path, struct f_path_mask *mask)
break;
default:
bug("This should not be in path");
bug("as_path_match: Invalid path component");
}
}
return 0;
......
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