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MEDIUM: pattern: get rid of arg_i in all functions making use of arguments

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arg_i was almost unused, and since we migrated to use struct arg everywhere,
the rare cases where arg_i was needed could be replaced by switching to
arg->type = ARGT_STOP.
This commit is contained in:
Willy Tarreau 2012-04-20 14:03:29 +02:00
parent ecfb8e8ff9
commit f995410355
6 changed files with 50 additions and 54 deletions
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4
include/proto/pattern.h
View File

@ -34,6 +34,6 @@ struct pattern *pattern_process(struct proxy *px, struct session *l4,
void pattern_register_fetches(struct pattern_fetch_kw_list *psl);
void pattern_register_convs(struct pattern_conv_kw_list *psl);
int pattern_arg_ipmask(const char *arg_str, struct arg **arg_p, int *arg_i);
int pattern_arg_str(const char *arg_str, struct arg **arg_p, int *arg_i);
int pattern_arg_ipmask(const char *arg_str, struct arg **arg_p);
int pattern_arg_str(const char *arg_str, struct arg **arg_p);
#endif

12
include/types/pattern.h
View File

@ -63,11 +63,9 @@ struct pattern {
struct pattern_conv {
const char *kw; /* configuration keyword */
int (*process)(const struct arg *arg_p,
int arg_i,
union pattern_data *data); /* process function */
union pattern_data *data); /* process function */
int (*parse_args)(const char *arg_str,
struct arg **arg_p,
int *arg_i); /* argument parser. Can be NULL. */
struct arg **arg_p); /* argument parser. May be NULL. */
unsigned int in_type; /* input needed pattern type */
unsigned int out_type; /* output pattern type */
};
@ -77,7 +75,6 @@ struct pattern_conv_expr {
struct list list; /* member of a pattern expression */
struct pattern_conv *conv; /* pattern conversion */
struct arg *arg_p; /* pointer on args */
int arg_i; /* number of args */
};
/* pattern fetch */
@ -87,11 +84,9 @@ struct pattern_fetch {
struct session *l4,
void *l7,
int dir, const struct arg *arg_p,
int arg_i,
union pattern_data *data); /* fetch processing function */
int (*parse_args)(const char *arg_str,
struct arg **arg_p,
int *arg_i); /* argument parser. Can be NULL. */
struct arg **arg_p); /* argument parser. Can be NULL. */
unsigned long out_type; /* output pattern type */
int dir; /* usable directions */
};
@ -101,7 +96,6 @@ struct pattern_expr {
struct list list; /* member of list of pattern, currently not used */
struct pattern_fetch *fetch; /* pattern fetch */
struct arg *arg_p; /* pointer on args */
int arg_i; /* number of args */
struct list conv_exprs; /* list of conversion expression to apply */
};

23
src/haproxy.c
View File

@ -758,21 +758,24 @@ static void deinit_tcp_rules(struct list *rules)
}
}
static void deinit_pattern_arg(struct arg *p, int i)
static void deinit_pattern_arg(struct arg *p)
{
struct arg *p_back = p;
if (!p)
return;
while (i--) {
if (p[i].type == ARGT_FE || p[i].type == ARGT_BE ||
p[i].type == ARGT_TAB || p[i].type == ARGT_SRV ||
p[i].type == ARGT_USR || p[i].type == ARGT_STR) {
free(p[i].data.str.str);
p[i].data.str.str = NULL;
while (p->type != ARGT_STOP) {
if (p->type == ARGT_FE || p->type == ARGT_BE ||
p->type == ARGT_TAB || p->type == ARGT_SRV ||
p->type == ARGT_USR || p->type == ARGT_STR) {
free(p->data.str.str);
p->data.str.str = NULL;
}
p++;
}
free(p);
free(p_back);
}
static void deinit_stick_rules(struct list *rules)
@ -785,8 +788,8 @@ static void deinit_stick_rules(struct list *rules)
if (rule->expr) {
struct pattern_conv_expr *conv_expr, *conv_exprb;
list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
deinit_pattern_arg(conv_expr->arg_p, conv_expr->arg_i);
deinit_pattern_arg(rule->expr->arg_p, rule->expr->arg_i);
deinit_pattern_arg(conv_expr->arg_p);
deinit_pattern_arg(rule->expr->arg_p);
free(rule->expr);
}
free(rule);

29
src/pattern.c
View File

@ -328,7 +328,7 @@ struct pattern_expr *pattern_parse_expr(char **str, int *idx, char *err, int err
p = my_strndup(endw + 1, i);
if (!p)
goto out_error;
i = fetch->parse_args(p, &expr->arg_p, &expr->arg_i);
i = fetch->parse_args(p, &expr->arg_p);
free(p);
if (!i) {
p = my_strndup(str[*idx], endw - str[*idx]);
@ -413,7 +413,7 @@ struct pattern_expr *pattern_parse_expr(char **str, int *idx, char *err, int err
p = my_strndup(endw + 1, i);
if (!p)
goto out_error;
i = conv->parse_args(p, &conv_expr->arg_p, &conv_expr->arg_i);
i = conv->parse_args(p, &conv_expr->arg_p);
free(p);
if (!i) {
p = my_strndup(str[*idx], endw - str[*idx]);
@ -458,7 +458,7 @@ struct pattern *pattern_process(struct proxy *px, struct session *l4, void *l7,
if (p == NULL)
p = &temp_pattern;
if (!expr->fetch->process(px, l4, l7, dir, expr->arg_p, expr->arg_i, &p->data))
if (!expr->fetch->process(px, l4, l7, dir, expr->arg_p, &p->data))
return NULL;
p->type = expr->fetch->out_type;
@ -468,7 +468,7 @@ struct pattern *pattern_process(struct proxy *px, struct session *l4, void *l7,
return NULL;
p->type = conv_expr->conv->in_type;
if (!conv_expr->conv->process(conv_expr->arg_p, conv_expr->arg_i, &p->data))
if (!conv_expr->conv->process(conv_expr->arg_p, &p->data))
return NULL;
p->type = conv_expr->conv->out_type;
@ -479,11 +479,11 @@ struct pattern *pattern_process(struct proxy *px, struct session *l4, void *l7,
/* Converts an argument string mask to a arg type IP.
* Returns non-zero in case of success, 0 on error.
*/
int pattern_arg_ipmask(const char *arg_str, struct arg **arg_p, int *arg_i)
int pattern_arg_ipmask(const char *arg_str, struct arg **arg_p)
{
*arg_i = 1;
*arg_p = calloc(1, *arg_i*sizeof(struct arg));
*arg_p = calloc(2, sizeof(struct arg));
(*arg_p)->type = ARGT_IPV4;
arg_p[1]->type = ARGT_STOP;
if (!str2mask(arg_str, &(*arg_p)->data.ipv4))
return 0;
@ -495,14 +495,13 @@ int pattern_arg_ipmask(const char *arg_str, struct arg **arg_p, int *arg_i)
/* Converts an argument string to a arg type STRING.
* Returns non-zero in case of success, 0 on error.
*/
int pattern_arg_str(const char *arg_str, struct arg **arg_p, int *arg_i)
int pattern_arg_str(const char *arg_str, struct arg **arg_p)
{
*arg_i = 1;
*arg_p = calloc(1, *arg_i*sizeof(struct arg));
*arg_p = calloc(2, sizeof(struct arg));
(*arg_p)->type = ARGT_STR;
(*arg_p)->data.str.str = strdup(arg_str);
(*arg_p)->data.str.len = strlen(arg_str);
arg_p[1]->type = ARGT_STOP;
return 1;
}
@ -512,7 +511,7 @@ int pattern_arg_str(const char *arg_str, struct arg **arg_p, int *arg_i)
/* Pattern format convert functions */
/*****************************************************************/
static int pattern_conv_str2lower(const struct arg *arg_p, int arg_i, union pattern_data *data)
static int pattern_conv_str2lower(const struct arg *arg_p, union pattern_data *data)
{
int i;
@ -526,7 +525,7 @@ static int pattern_conv_str2lower(const struct arg *arg_p, int arg_i, union patt
return 1;
}
static int pattern_conv_str2upper(const struct arg *arg_p, int arg_i, union pattern_data *data)
static int pattern_conv_str2upper(const struct arg *arg_p, union pattern_data *data)
{
int i;
@ -540,8 +539,8 @@ static int pattern_conv_str2upper(const struct arg *arg_p, int arg_i, union patt
return 1;
}
/* takes the netmask in arg_i */
static int pattern_conv_ipmask(const struct arg *arg_p, int arg_i, union pattern_data *data)
/* takes the netmask in arg_p */
static int pattern_conv_ipmask(const struct arg *arg_p, union pattern_data *data)
{
data->ip.s_addr &= arg_p->data.ipv4.s_addr;
return 1;

8
src/proto_http.c
View File

@ -8344,7 +8344,7 @@ static struct acl_kw_list acl_kws = {{ },{
/* Returns the last occurrence of specified header. */
static int
pattern_fetch_hdr(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
struct http_txn *txn = l7;
@ -8439,7 +8439,7 @@ find_url_param_value(char* path, size_t path_l,
static int
pattern_fetch_url_param(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
struct http_txn *txn = l7;
struct http_msg *msg = &txn->req;
@ -8492,7 +8492,7 @@ find_cookie_value(struct http_msg *msg, struct http_txn *txn,
static int
pattern_fetch_cookie(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
struct http_txn *txn = l7;
struct http_msg *msg = &txn->req;
@ -8514,7 +8514,7 @@ pattern_fetch_cookie(struct proxy *px, struct session *l4, void *l7, int dir,
static int
pattern_fetch_set_cookie(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
struct http_txn *txn = l7;
struct http_msg *msg = &txn->rsp;

28
src/proto_tcp.c
View File

@ -1275,7 +1275,7 @@ acl_fetch_src(struct proxy *px, struct session *l4, void *l7, int dir,
/* extract the connection's source ipv4 address */
static int
pattern_fetch_src(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
if (l4->si[0].addr.from.ss_family != AF_INET )
return 0;
@ -1287,7 +1287,7 @@ pattern_fetch_src(struct proxy *px, struct session *l4, void *l7, int dir,
/* extract the connection's source ipv6 address */
static int
pattern_fetch_src6(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
if (l4->si[0].addr.from.ss_family != AF_INET6)
return 0;
@ -1337,7 +1337,7 @@ acl_fetch_dst(struct proxy *px, struct session *l4, void *l7, int dir,
/* extract the connection's destination ipv4 address */
static int
pattern_fetch_dst(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
stream_sock_get_to_addr(&l4->si[0]);
@ -1351,7 +1351,7 @@ pattern_fetch_dst(struct proxy *px, struct session *l4, void *l7, int dir,
/* extract the connection's destination ipv6 address */
static int
pattern_fetch_dst6(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
stream_sock_get_to_addr(&l4->si[0]);
@ -1378,7 +1378,7 @@ acl_fetch_dport(struct proxy *px, struct session *l4, void *l7, int dir,
static int
pattern_fetch_dport(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg, int i, union pattern_data *data)
const struct arg *arg, union pattern_data *data)
{
stream_sock_get_to_addr(&l4->si[0]);
@ -1389,7 +1389,7 @@ pattern_fetch_dport(struct proxy *px, struct session *l4, void *l7, int dir,
}
static int
pattern_arg_fetch_payloadlv(const char *arg, struct arg **arg_p, int *arg_i)
pattern_arg_fetch_payloadlv(const char *arg, struct arg **arg_p)
{
int member = 0;
int len_offset = 0;
@ -1445,21 +1445,21 @@ pattern_arg_fetch_payloadlv(const char *arg, struct arg **arg_p, int *arg_i)
buf_offset = len_offset + len_size - buf_offset;
}
*arg_i = 3;
*arg_p = calloc(1, *arg_i*sizeof(struct arg));
*arg_p = calloc(4, sizeof(struct arg));
(*arg_p)[0].type = ARGT_UINT;
(*arg_p)[0].data.uint = len_offset;
(*arg_p)[1].type = ARGT_UINT;
(*arg_p)[1].data.uint = len_size;
(*arg_p)[2].type = ARGT_UINT;
(*arg_p)[2].data.uint = buf_offset;
(*arg_p)[3].type = ARGT_STOP;
return 1;
}
static int
pattern_fetch_payloadlv(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
int len_offset = arg_p[0].data.uint;
int len_size = arg_p[1].data.uint;
@ -1500,7 +1500,7 @@ pattern_fetch_payloadlv(struct proxy *px, struct session *l4, void *l7, int dir,
}
static int
pattern_arg_fetch_payload (const char *arg, struct arg **arg_p, int *arg_i)
pattern_arg_fetch_payload (const char *arg, struct arg **arg_p)
{
int member = 0;
int buf_offset = 0;
@ -1527,19 +1527,19 @@ pattern_arg_fetch_payload (const char *arg, struct arg **arg_p, int *arg_i)
if (!buf_size)
return 0;
*arg_i = 2;
*arg_p = calloc(1, *arg_i*sizeof(struct arg));
*arg_p = calloc(3, sizeof(struct arg));
(*arg_p)[0].type = ARGT_UINT;
(*arg_p)[0].data.uint = buf_offset;
(*arg_p)[1].type = ARGT_UINT;
(*arg_p)[1].data.uint = buf_size;
(*arg_p)[2].type = ARGT_STOP;
return 1;
}
static int
pattern_fetch_payload(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
int buf_offset = arg_p[0].data.uint;
int buf_size = arg_p[1].data.uint;
@ -1564,7 +1564,7 @@ pattern_fetch_payload(struct proxy *px, struct session *l4, void *l7, int dir,
static int
pattern_fetch_rdp_cookie(struct proxy *px, struct session *l4, void *l7, int dir,
const struct arg *arg_p, int arg_i, union pattern_data *data)
const struct arg *arg_p, union pattern_data *data)
{
int ret;
struct acl_expr expr;