diff options
Diffstat (limited to 'kernel/trace/trace_events_filter.c')
| -rw-r--r-- | kernel/trace/trace_events_filter.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index 27821480105e..05a66493a164 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -491,10 +491,12 @@ predicate_parse(const char *str, int nr_parens, int nr_preds, break; case '&': case '|': + /* accepting only "&&" or "||" */ if (next[1] == next[0]) { ptr++; break; } + /* fall through */ default: parse_error(pe, FILT_ERR_TOO_MANY_PREDS, next - str); @@ -823,6 +825,9 @@ enum regex_type filter_parse_regex(char *buff, int len, char **search, int *not) *search = buff; + if (isdigit(buff[0])) + return MATCH_INDEX; + for (i = 0; i < len; i++) { if (buff[i] == '*') { if (!i) { @@ -860,6 +865,8 @@ static void filter_build_regex(struct filter_pred *pred) } switch (type) { + /* MATCH_INDEX should not happen, but if it does, match full */ + case MATCH_INDEX: case MATCH_FULL: r->match = regex_match_full; break; @@ -1301,7 +1308,7 @@ static int parse_pred(const char *str, void *data, /* go past the last quote */ i++; - } else if (isdigit(str[i])) { + } else if (isdigit(str[i]) || str[i] == '-') { /* Make sure the field is not a string */ if (is_string_field(field)) { @@ -1314,6 +1321,9 @@ static int parse_pred(const char *str, void *data, goto err_free; } + if (str[i] == '-') + i++; + /* We allow 0xDEADBEEF */ while (isalnum(str[i])) i++; |