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haproxy/src/flt_spoe.c
Ilya Shipitsin 1f6e5f7a61 CLEANUP: assorted typo fixes in the code and comments 
This is 43rd iteration of typo fixes
2024-09-03 17:49:21 +02:00

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/*
* Stream processing offload engine management.
*
* Copyright 2016 HAProxy Technologies, Christopher Faulet <cfaulet@haproxy.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#include <ctype.h>
#include <errno.h>
#include <haproxy/acl.h>
#include <haproxy/applet.h>
#include <haproxy/action-t.h>
#include <haproxy/api.h>
#include <haproxy/arg.h>
#include <haproxy/cfgparse.h>
#include <haproxy/check.h>
#include <haproxy/filters.h>
#include <haproxy/freq_ctr.h>
#include <haproxy/frontend.h>
#include <haproxy/global.h>
#include <haproxy/http_rules.h>
#include <haproxy/log.h>
#include <haproxy/pool.h>
#include <haproxy/proxy.h>
#include <haproxy/sample.h>
#include <haproxy/sc_strm.h>
#include <haproxy/session.h>
#include <haproxy/signal.h>
#include <haproxy/sink.h>
#include <haproxy/spoe.h>
#include <haproxy/stconn.h>
#include <haproxy/stream.h>
#include <haproxy/task.h>
#include <haproxy/tcp_rules.h>
#include <haproxy/thread.h>
#include <haproxy/time.h>
#include <haproxy/tools.h>
#include <haproxy/vars.h>
/* Type of list of messages */
#define SPOE_MSGS_BY_EVENT 0x01
#define SPOE_MSGS_BY_GROUP 0x02
/* Flags set on the SPOE context */
#define SPOE_CTX_FL_CLI_CONNECTED 0x00000001 /* Set after that on-client-session event was processed */
#define SPOE_CTX_FL_SRV_CONNECTED 0x00000002 /* Set after that on-server-session event was processed */
#define SPOE_CTX_FL_REQ_PROCESS 0x00000004 /* Set when SPOE is processing the request */
#define SPOE_CTX_FL_RSP_PROCESS 0x00000008 /* Set when SPOE is processing the response */
/* unused 0x00000010 */
#define SPOE_CTX_FL_PROCESS (SPOE_CTX_FL_REQ_PROCESS|SPOE_CTX_FL_RSP_PROCESS)
/* All possible states for a SPOE context */
enum spoe_ctx_state {
SPOE_CTX_ST_NONE = 0,
SPOE_CTX_ST_READY,
SPOE_CTX_ST_ENCODING_MSGS,
SPOE_CTX_ST_SENDING_MSGS,
SPOE_CTX_ST_WAITING_ACK,
SPOE_CTX_ST_DONE,
SPOE_CTX_ST_ERROR,
};
/* All possible states for a SPOE applet */
enum spoe_appctx_state {
SPOE_APPCTX_ST_WAITING_ACK = 0,
SPOE_APPCTX_ST_EXIT,
SPOE_APPCTX_ST_END,
};
/* All supported SPOE events */
enum spoe_event {
SPOE_EV_NONE = 0,
/* Request events */
SPOE_EV_ON_CLIENT_SESS = 1,
SPOE_EV_ON_TCP_REQ_FE,
SPOE_EV_ON_TCP_REQ_BE,
SPOE_EV_ON_HTTP_REQ_FE,
SPOE_EV_ON_HTTP_REQ_BE,
/* Response events */
SPOE_EV_ON_SERVER_SESS,
SPOE_EV_ON_TCP_RSP,
SPOE_EV_ON_HTTP_RSP,
SPOE_EV_EVENTS
};
/* Errors triggered by streams */
enum spoe_context_error {
SPOE_CTX_ERR_NONE = 0,
SPOE_CTX_ERR_TOUT,
SPOE_CTX_ERR_RES,
SPOE_CTX_ERR_TOO_BIG,
SPOE_CTX_ERR_INTERRUPT,
SPOE_CTX_ERR_UNKNOWN = 255,
SPOE_CTX_ERRS,
};
/* Describe an argument that will be linked to a message. It is a sample fetch,
* with an optional name. */
struct spoe_arg {
char *name; /* Name of the argument, may be NULL */
unsigned int name_len; /* The name length, 0 if NULL */
struct sample_expr *expr; /* Sample expression */
struct list list; /* Used to chain SPOE args */
};
/* Used during the config parsing only because, when a SPOE agent section is
* parsed, messages/groups can be undefined. */
struct spoe_placeholder {
char *id; /* SPOE placeholder id */
struct list list; /* Use to chain SPOE placeholders */
};
/* Used during the config parsing, when SPOE agent section is parsed, to
* register some variable names. */
struct spoe_var_placeholder {
char *name; /* The variable name */
struct list list; /* Use to chain SPOE var placeholders */
};
/* Describe a message that will be sent in a NOTIFY frame. A message has a name,
* an argument list (see above) and it is linked to a specific event. */
struct spoe_message {
char *id; /* SPOE message id */
unsigned int id_len; /* The message id length */
struct spoe_agent *agent; /* SPOE agent owning this SPOE message */
struct spoe_group *group; /* SPOE group owning this SPOE message (can be NULL) */
struct {
char *file; /* file where the SPOE message appears */
int line; /* line where the SPOE message appears */
} conf; /* config information */
unsigned int nargs; /* # of arguments */
struct list args; /* Arguments added when the SPOE messages is sent */
struct list list; /* Used to chain SPOE messages */
struct list by_evt; /* By event list */
struct list by_grp; /* By group list */
struct list acls; /* ACL declared on this message */
struct acl_cond *cond; /* acl condition to meet */
enum spoe_event event; /* SPOE_EV_* */
};
/* Describe a group of messages that will be sent in a NOTIFY frame. A group has
* a name and a list of messages. It can be used by HAProxy, outside events
* processing, mainly in (tcp|http) rules. */
struct spoe_group {
char *id; /* SPOE group id */
struct spoe_agent *agent; /* SPOE agent owning this SPOE group */
struct {
char *file; /* file where the SPOE group appears */
int line; /* line where the SPOE group appears */
} conf; /* config information */
struct list phs; /* List of placeholders used during conf parsing */
struct list messages; /* List of SPOE messages that will be sent by this
* group */
struct list list; /* Used to chain SPOE groups */
};
/* SPOE context attached to a stream. It is the main structure that handles the
* processing offload */
struct spoe_context {
struct filter *filter; /* The SPOE filter */
struct stream *strm; /* The stream that should be offloaded */
struct list *events; /* List of messages that will be sent during the stream processing */
struct list *groups; /* List of available SPOE group */
struct buffer buffer; /* Buffer used to store a encoded messages */
struct buffer_wait buffer_wait; /* position in the list of resources waiting for a buffer */
enum spoe_ctx_state state; /* SPOE_CTX_ST_* */
unsigned int flags; /* SPOE_CTX_FL_* */
unsigned int status_code; /* SPOE_CTX_ERR_* */
unsigned int stream_id; /* stream_id and frame_id are used */
unsigned int frame_id; /* to map NOTIFY and ACK frames */
unsigned int process_exp; /* expiration date to process an event */
struct spoe_appctx *spoe_appctx; /* SPOE appctx sending the current frame */
struct {
ullong start_ts; /* start date of the current event/group */
long t_process; /* processing time of the last event/group */
unsigned long t_total; /* cumulative processing time */
} stats; /* Stats for this stream */
};
/* SPOE context inside a appctx */
struct spoe_appctx {
struct appctx *owner; /* the owner */
struct spoe_agent *agent; /* agent on which the applet is attached */
unsigned int flags; /* SPOE_APPCTX_FL_* */
unsigned int status_code; /* SPOE_FRM_ERR_* */
struct spoe_context *spoe_ctx; /* The SPOE context to handle */
};
/* SPOE filter configuration */
struct spoe_config {
char *id; /* The SPOE engine name. If undefined in HAProxy config,
* it will be set with the SPOE agent name */
struct proxy *proxy; /* Proxy owning the filter */
struct spoe_agent *agent; /* Agent used by this filter */
};
/* Helper to get SPOE ctx inside an appctx */
#define SPOE_APPCTX(appctx) ((struct spoe_appctx *)((appctx)->svcctx))
/* SPOE filter id. Used to identify SPOE filters */
const char *spoe_filter_id = "SPOE filter";
/* The name of the SPOE engine, used during the parsing */
char *curengine = NULL;
/* SPOE agent used during the parsing */
/* SPOE agent/group/message used during the parsing */
struct spoe_agent *curagent = NULL;
struct spoe_group *curgrp = NULL;
struct spoe_message *curmsg = NULL;
/* list of SPOE messages and placeholders used during the parsing */
struct list curmsgs;
struct list curgrps;
struct list curmphs;
struct list curgphs;
struct list curvars;
/* list of log servers used during the parsing */
struct list curloggers;
/* agent's proxy flags (PR_O_* and PR_O2_*) used during parsing */
int curpxopts;
int curpxopts2;
/* Pools used to allocate SPOE structs */
DECLARE_STATIC_POOL(pool_head_spoe_ctx, "spoe_ctx", sizeof(struct spoe_context));
DECLARE_STATIC_POOL(pool_head_spoe_appctx, "spoe_appctx", sizeof(struct spoe_appctx));
struct flt_ops spoe_ops;
static int spoe_acquire_buffer(struct buffer *buf, struct buffer_wait *buffer_wait);
static void spoe_release_buffer(struct buffer *buf, struct buffer_wait *buffer_wait);
static struct appctx *spoe_create_appctx(struct spoe_context *ctx);
/********************************************************************
* helper functions/globals
********************************************************************/
static void spoe_release_placeholder(struct spoe_placeholder *ph)
{
if (!ph)
return;
free(ph->id);
free(ph);
}
static void spoe_release_message(struct spoe_message *msg)
{
struct spoe_arg *arg, *argback;
struct acl *acl, *aclback;
if (!msg)
return;
free(msg->id);
free(msg->conf.file);
list_for_each_entry_safe(arg, argback, &msg->args, list) {
release_sample_expr(arg->expr);
free(arg->name);
LIST_DELETE(&arg->list);
free(arg);
}
list_for_each_entry_safe(acl, aclback, &msg->acls, list) {
LIST_DELETE(&acl->list);
prune_acl(acl);
free(acl);
}
free_acl_cond(msg->cond);
free(msg);
}
static void spoe_release_group(struct spoe_group *grp)
{
if (!grp)
return;
free(grp->id);
free(grp->conf.file);
free(grp);
}
static void spoe_release_agent(struct spoe_agent *agent)
{
struct spoe_message *msg, *msgback;
struct spoe_group *grp, *grpback;
if (!agent)
return;
free(agent->id);
free(agent->conf.file);
free(agent->var_pfx);
free(agent->var_on_error);
free(agent->var_t_process);
free(agent->var_t_total);
list_for_each_entry_safe(msg, msgback, &agent->messages, list) {
LIST_DELETE(&msg->list);
spoe_release_message(msg);
}
list_for_each_entry_safe(grp, grpback, &agent->groups, list) {
LIST_DELETE(&grp->list);
spoe_release_group(grp);
}
free(agent->events);
free(agent->engine_id);
free(agent);
}
static const char *spoe_event_str[SPOE_EV_EVENTS] = {
[SPOE_EV_ON_CLIENT_SESS] = "on-client-session",
[SPOE_EV_ON_TCP_REQ_FE] = "on-frontend-tcp-request",
[SPOE_EV_ON_TCP_REQ_BE] = "on-backend-tcp-request",
[SPOE_EV_ON_HTTP_REQ_FE] = "on-frontend-http-request",
[SPOE_EV_ON_HTTP_REQ_BE] = "on-backend-http-request",
[SPOE_EV_ON_SERVER_SESS] = "on-server-session",
[SPOE_EV_ON_TCP_RSP] = "on-tcp-response",
[SPOE_EV_ON_HTTP_RSP] = "on-http-response",
};
/* Used to generates a unique id for an engine. On success, it returns a
* allocated string. So it is the caller's responsibility to release it. If the
* allocation failed, it returns NULL. */
static char *generate_pseudo_uuid()
{
ha_generate_uuid_v4(&trash);
return my_strndup(trash.area, trash.data);
}
/* set/add to <t> the elapsed time since <since> and now */
static inline void spoe_update_stat_time(ullong *since, long *t)
{
if (*t == -1)
*t = ns_to_ms(now_ns - *since);
else
*t += ns_to_ms(now_ns - *since);
*since = 0;
}
/********************************************************************
* Functions that manage the SPOE applet
********************************************************************/
struct spoe_agent *spoe_appctx_agent(struct appctx *appctx)
{
struct spoe_appctx *spoe_appctx;
if (!appctx)
return NULL;
spoe_appctx = SPOE_APPCTX(appctx);
if (!spoe_appctx)
return NULL;
return spoe_appctx->agent;
}
static int spoe_init_appctx(struct appctx *appctx)
{
struct spoe_appctx *spoe_appctx = SPOE_APPCTX(appctx);
struct spoe_agent *agent = spoe_appctx->agent;
struct stream *s;
if (appctx_finalize_startup(appctx, &agent->fe, &spoe_appctx->spoe_ctx->buffer) == -1)
goto error;
spoe_appctx->owner = appctx;
s = appctx_strm(appctx);
stream_set_backend(s, agent->b.be);
/* applet is waiting for data */
applet_need_more_data(appctx);
s->do_log = NULL;
s->scb->flags |= SC_FL_RCV_ONCE;
s->parent = spoe_appctx->spoe_ctx->strm;
appctx->st0 = SPOE_APPCTX_ST_WAITING_ACK;
appctx_wakeup(appctx);
return 0;
error:
return -1;
}
static void spoe_shut_appctx(struct appctx *appctx, enum se_shut_mode mode, struct se_abort_info *reason)
{
struct spoe_appctx *spoe_appctx = SPOE_APPCTX(appctx);
if (!reason || spoe_appctx->status_code != SPOP_ERR_NONE)
return;
if (((reason->info & SE_ABRT_SRC_MASK) >> SE_ABRT_SRC_SHIFT) == SE_ABRT_SRC_MUX_SPOP)
spoe_appctx->status_code = reason->code;
}
/* Callback function that releases a SPOE applet. This happens when the
* connection with the agent is closed. */
static void spoe_release_appctx(struct appctx *appctx)
{
struct spoe_appctx *spoe_appctx = SPOE_APPCTX(appctx);
if (spoe_appctx == NULL)
return;
appctx->svcctx = NULL;
appctx_strm(appctx)->parent = NULL;
/* Shutdown the server connection, if needed */
if (appctx->st0 != SPOE_APPCTX_ST_END) {
appctx->st0 = SPOE_APPCTX_ST_END;
if (spoe_appctx->status_code == SPOP_ERR_NONE)
spoe_appctx->status_code = SPOP_ERR_IO;
}
if (spoe_appctx->spoe_ctx) {
/* Report an error to stream */
spoe_appctx->spoe_ctx->spoe_appctx = NULL;
spoe_appctx->spoe_ctx->state = SPOE_CTX_ST_ERROR;
spoe_appctx->spoe_ctx->status_code = (spoe_appctx->status_code + 0x100);
task_wakeup(spoe_appctx->spoe_ctx->strm->task, TASK_WOKEN_MSG);
}
end:
/* Release allocated memory */
pool_free(pool_head_spoe_appctx, spoe_appctx);
}
static int spoe_handle_receiving_frame_appctx(struct appctx *appctx)
{
struct spoe_appctx *spoe_appctx = SPOE_APPCTX(appctx);
struct spoe_context *spoe_ctx = spoe_appctx->spoe_ctx;
int ret = 0;
BUG_ON(b_data(&spoe_ctx->buffer));
if (!b_data(&appctx->inbuf)) {
applet_need_more_data(appctx);
goto end;
}
if (b_data(&appctx->inbuf) > spoe_appctx->agent->max_frame_size) {
spoe_ctx->state = SPOE_CTX_ST_ERROR;
spoe_ctx->status_code = (spoe_appctx->status_code + 0x100);
spoe_appctx->status_code = SPOP_ERR_TOO_BIG;
appctx->st0 = SPOE_APPCTX_ST_EXIT;
task_wakeup(spoe_ctx->strm->task, TASK_WOKEN_MSG);
ret = -1;
goto end;
}
b_xfer(&spoe_ctx->buffer, &appctx->inbuf, b_data(&appctx->inbuf));
spoe_ctx->state = SPOE_CTX_ST_DONE;
appctx->st0 = SPOE_APPCTX_ST_EXIT;
task_wakeup(spoe_ctx->strm->task, TASK_WOKEN_MSG);
ret = 1;
end:
return ret;
}
/* I/O Handler processing messages exchanged with the agent */
static void spoe_handle_appctx(struct appctx *appctx)
{
if (SPOE_APPCTX(appctx) == NULL)
goto out;
if (applet_fl_test(appctx, APPCTX_FL_INBLK_ALLOC))
goto out;
if (!appctx_get_buf(appctx, &appctx->inbuf))
goto out;
if (unlikely(se_fl_test(appctx->sedesc, (SE_FL_EOS|SE_FL_ERROR)))) {
b_reset(&appctx->inbuf);
applet_fl_clr(appctx, APPCTX_FL_INBLK_FULL);
goto out;
}
if (!SPOE_APPCTX(appctx)->spoe_ctx)
appctx->st0 = SPOE_APPCTX_ST_EXIT;
switchstate:
switch (appctx->st0) {
/* case SPOE_APPCTX_ST_PROCESSING: */
case SPOE_APPCTX_ST_WAITING_ACK:
if (!spoe_handle_receiving_frame_appctx(appctx))
break;
goto switchstate;
case SPOE_APPCTX_ST_EXIT:
appctx->st0 = SPOE_APPCTX_ST_END;
se_fl_set(appctx->sedesc, SE_FL_EOS);
if (SPOE_APPCTX(appctx)->status_code != SPOP_ERR_NONE)
se_fl_set(appctx->sedesc, SE_FL_ERROR);
else
se_fl_set(appctx->sedesc, SE_FL_EOI);
__fallthrough;
case SPOE_APPCTX_ST_END:
b_reset(&appctx->inbuf);
applet_fl_clr(appctx, APPCTX_FL_INBLK_FULL);
break;
}
out:
applet_have_no_more_data(appctx);
return;
}
struct applet spoe_applet = {
.obj_type = OBJ_TYPE_APPLET,
.name = "<SPOE>", /* used for logging */
.fct = spoe_handle_appctx,
.init = spoe_init_appctx,
.shut = spoe_shut_appctx,
.rcv_buf = appctx_raw_rcv_buf,
.snd_buf = appctx_raw_snd_buf,
.release = spoe_release_appctx,
};
/* Create a SPOE applet. On success, the created applet is returned, else
* NULL. */
static struct appctx *spoe_create_appctx(struct spoe_context *ctx)
{
struct spoe_config *conf = FLT_CONF(ctx->filter);
struct spoe_agent *agent = conf->agent;
struct spoe_appctx *spoe_appctx;
struct appctx *appctx;
spoe_appctx = pool_zalloc(pool_head_spoe_appctx);
if (spoe_appctx == NULL)
goto out_error;
spoe_appctx->agent = agent;
spoe_appctx->flags = 0;
spoe_appctx->status_code = SPOP_ERR_NONE;
spoe_appctx->spoe_ctx = ctx;
ctx->spoe_appctx = spoe_appctx;
if ((appctx = appctx_new_here(&spoe_applet, NULL)) == NULL)
goto out_free_spoe_appctx;
appctx->svcctx = spoe_appctx;
if (appctx_init(appctx) == -1)
goto out_free_appctx;
appctx_wakeup(appctx);
return appctx;
/* Error unrolling */
out_free_appctx:
appctx_free_on_early_error(appctx);
out_free_spoe_appctx:
pool_free(pool_head_spoe_appctx, spoe_appctx);
out_error:
send_log(&agent->fe, LOG_EMERG, "SPOE: [%s] failed to create SPOE applet\n", agent->id);
out:
return NULL;
}
/***************************************************************************
* Functions that encode SPOE messages
**************************************************************************/
/* Encode a SPOE message. If the next message can be processed, it returns 0. If
* the message is too big, it returns -1.*/
static int spoe_encode_message(struct stream *s, struct spoe_context *ctx,
struct spoe_message *msg, int dir,
char **buf, char *end)
{
struct sample *smp;
struct spoe_arg *arg;
int ret;
if (msg->cond) {
ret = acl_exec_cond(msg->cond, s->be, s->sess, s, dir|SMP_OPT_FINAL);
ret = acl_pass(ret);
if (msg->cond->pol == ACL_COND_UNLESS)
ret = !ret;
/* the rule does not match */
if (!ret)
goto next;
}
/* Check if there is enough space for the message name and the
* number of arguments. It implies <msg->id_len> is encoded on 2
* bytes, at most (< 2288). */
if (*buf + 2 + msg->id_len + 1 > end)
goto too_big;
/* Encode the message name */
if (spoe_encode_buffer(msg->id, msg->id_len, buf, end) == -1)
goto too_big;
/* Set the number of arguments for this message */
**buf = msg->nargs;
(*buf)++;
/* Loop on arguments */
list_for_each_entry(arg, &msg->args, list) {
/* Encode the argument name as a string. It can by NULL */
if (spoe_encode_buffer(arg->name, arg->name_len, buf, end) == -1)
goto too_big;
/* Fetch the argument value */
smp = sample_process(s->be, s->sess, s, dir|SMP_OPT_FINAL, arg->expr, NULL);
ret = spoe_encode_data(smp, buf, end);
if (ret == -1)
goto too_big;
}
next:
return 0;
too_big:
return -1;
}
/* Encode list of SPOE messages. On success it returns 1. If an error occurred, -1
* is returned. If nothing has been encoded, it returns 0. */
static int spoe_encode_messages(struct stream *s, struct spoe_context *ctx,
struct list *messages, int dir, int type)
{
struct spoe_config *conf = FLT_CONF(ctx->filter);
struct spoe_agent *agent = conf->agent;
struct spoe_message *msg;
char *p, *end;
p = b_head(&ctx->buffer);
end = p + agent->max_frame_size - SPOP_FRAME_HDR_SIZE;
/* Set Frame type */
*p++ = SPOP_FRM_T_HAPROXY_NOTIFY;
if (type == SPOE_MSGS_BY_EVENT) { /* Loop on messages by event */
list_for_each_entry(msg, messages, by_evt) {
if (spoe_encode_message(s, ctx, msg, dir, &p, end) == -1)
goto too_big;
}
}
else if (type == SPOE_MSGS_BY_GROUP) { /* Loop on messages by group */
list_for_each_entry(msg, messages, by_grp) {
encode_grp_message:
if (spoe_encode_message(s, ctx, msg, dir, &p, end) == -1)
goto too_big;
}
}
else
goto skip;
/* nothing has been encoded */
if (p == b_head(&ctx->buffer))
goto skip;
b_set_data(&ctx->buffer, p - b_head(&ctx->buffer));
return 1;
too_big:
/* Return an error if nothing has been encoded because its too big */
ctx->status_code = SPOE_CTX_ERR_TOO_BIG;
return -1;
skip:
return 0;
}
/***************************************************************************
* Functions that handle SPOE actions
**************************************************************************/
/* Helper function to set a variable */
static void spoe_set_var(struct spoe_context *ctx, char *scope, char *name, int len,
struct sample *smp)
{
struct spoe_config *conf = FLT_CONF(ctx->filter);
struct spoe_agent *agent = conf->agent;
char varname[64];
memset(varname, 0, sizeof(varname));
len = snprintf(varname, sizeof(varname), "%s.%s.%.*s",
scope, agent->var_pfx, len, name);
if (agent->flags & SPOE_FL_FORCE_SET_VAR)
vars_set_by_name(varname, len, smp);
else
vars_set_by_name_ifexist(varname, len, smp);
}
/* Helper function to unset a variable */
static void spoe_unset_var(struct spoe_context *ctx, char *scope, char *name, int len,
struct sample *smp)
{
struct spoe_config *conf = FLT_CONF(ctx->filter);
struct spoe_agent *agent = conf->agent;
char varname[64];
memset(varname, 0, sizeof(varname));
len = snprintf(varname, sizeof(varname), "%s.%s.%.*s",
scope, agent->var_pfx, len, name);
vars_unset_by_name_ifexist(varname, len, smp);
}
static inline int spoe_decode_action_set_var(struct stream *s, struct spoe_context *ctx,
char **buf, char *end, int dir)
{
char *str, *scope, *p = *buf;
struct sample smp;
uint64_t sz;
int ret;
if (p + 2 >= end)
goto skip;
/* SET-VAR requires 3 arguments */
if (*p++ != 3)
goto skip;
switch (*p++) {
case SPOP_SCOPE_PROC: scope = "proc"; break;
case SPOP_SCOPE_SESS: scope = "sess"; break;
case SPOP_SCOPE_TXN : scope = "txn"; break;
case SPOP_SCOPE_REQ : scope = "req"; break;
case SPOP_SCOPE_RES : scope = "res"; break;
default: goto skip;
}
if (spoe_decode_buffer(&p, end, &str, &sz) == -1)
goto skip;
memset(&smp, 0, sizeof(smp));
smp_set_owner(&smp, s->be, s->sess, s, dir|SMP_OPT_FINAL);
if (spoe_decode_data(&p, end, &smp) == -1)
goto skip;
if (smp.data.type == SMP_T_ANY)
spoe_unset_var(ctx, scope, str, sz, &smp);
else
spoe_set_var(ctx, scope, str, sz, &smp);
ret = (p - *buf);
*buf = p;
return ret;
skip:
return 0;
}
static inline int spoe_decode_action_unset_var(struct stream *s, struct spoe_context *ctx,
char **buf, char *end, int dir)
{
char *str, *scope, *p = *buf;
struct sample smp;
uint64_t sz;
int ret;
if (p + 2 >= end)
goto skip;
/* UNSET-VAR requires 2 arguments */
if (*p++ != 2)
goto skip;
switch (*p++) {
case SPOP_SCOPE_PROC: scope = "proc"; break;
case SPOP_SCOPE_SESS: scope = "sess"; break;
case SPOP_SCOPE_TXN : scope = "txn"; break;
case SPOP_SCOPE_REQ : scope = "req"; break;
case SPOP_SCOPE_RES : scope = "res"; break;
default: goto skip;
}
if (spoe_decode_buffer(&p, end, &str, &sz) == -1)
goto skip;
memset(&smp, 0, sizeof(smp));
smp_set_owner(&smp, s->be, s->sess, s, dir|SMP_OPT_FINAL);
spoe_unset_var(ctx, scope, str, sz, &smp);
ret = (p - *buf);
*buf = p;
return ret;
skip:
return 0;
}
/* Process SPOE actions for a specific event. It returns 1 on success. If an
* error occurred, 0 is returned. */
static int spoe_process_actions(struct stream *s, struct spoe_context *ctx, int dir)
{
char *p, *end;
int ret;
p = b_head(&ctx->buffer);
end = p + b_data(&ctx->buffer);
while (p < end) {
enum spoe_action_type type;
type = *p++;
switch (type) {
case SPOP_ACT_T_SET_VAR:
ret = spoe_decode_action_set_var(s, ctx, &p, end, dir);
if (!ret)
goto skip;
break;
case SPOP_ACT_T_UNSET_VAR:
ret = spoe_decode_action_unset_var(s, ctx, &p, end, dir);
if (!ret)
goto skip;
break;
default:
goto skip;
}
}
return 1;
skip:
return 0;
}
/***************************************************************************
* Functions that process SPOE events
**************************************************************************/
static inline enum spop_error spoe_ctx_err_to_spop_err(enum spoe_context_error err)
{
switch (err) {
case SPOE_CTX_ERR_NONE:
return SPOP_ERR_NONE;
case SPOE_CTX_ERR_TOUT:
return SPOP_ERR_TOUT;
case SPOE_CTX_ERR_RES:
return SPOP_ERR_RES;
case SPOE_CTX_ERR_TOO_BIG:
return SPOP_ERR_TOO_BIG;
case SPOE_CTX_ERR_INTERRUPT:
return SPOP_ERR_IO;
default:
return SPOP_ERR_UNKNOWN;
}
}
static void spoe_update_stats(struct stream *s, struct spoe_agent *agent,
struct spoe_context *ctx, int dir)
{
if (ctx->stats.start_ts != 0) {
spoe_update_stat_time(&ctx->stats.start_ts, &ctx->stats.t_process);
ctx->stats.t_total += ctx->stats.t_process;
}
if (agent->var_t_process) {
struct sample smp;
memset(&smp, 0, sizeof(smp));
smp_set_owner(&smp, s->be, s->sess, s, dir|SMP_OPT_FINAL);
smp.data.u.sint = ctx->stats.t_process;
smp.data.type = SMP_T_SINT;
spoe_set_var(ctx, "txn", agent->var_t_process,
strlen(agent->var_t_process), &smp);
}
if (agent->var_t_total) {
struct sample smp;
memset(&smp, 0, sizeof(smp));
smp_set_owner(&smp, s->be, s->sess, s, dir|SMP_OPT_FINAL);
smp.data.u.sint = ctx->stats.t_total;
smp.data.type = SMP_T_SINT;
spoe_set_var(ctx, "txn", agent->var_t_total,
strlen(agent->var_t_total), &smp);
}
}
static void spoe_handle_processing_error(struct stream *s, struct spoe_agent *agent,
struct spoe_context *ctx, int dir)
{
if (agent->var_on_error) {
struct sample smp;
memset(&smp, 0, sizeof(smp));
smp_set_owner(&smp, s->be, s->sess, s, dir|SMP_OPT_FINAL);
smp.data.u.sint = ctx->status_code;
smp.data.type = SMP_T_BOOL;
spoe_set_var(ctx, "txn", agent->var_on_error,
strlen(agent->var_on_error), &smp);
}
ctx->state = ((agent->flags & SPOE_FL_CONT_ON_ERR)
? SPOE_CTX_ST_READY
: SPOE_CTX_ST_NONE);
}
static inline int spoe_start_processing(struct spoe_agent *agent, struct spoe_context *ctx, int dir)
{
/* If a process is already started for this SPOE context, retry
* later. */
if (ctx->flags & SPOE_CTX_FL_PROCESS)
return 0;
ctx->stats.start_ts = now_ns;
ctx->stats.t_process = -1;
ctx->status_code = 0;
/* Set the right flag to prevent request and response processing
* in same time. */
ctx->flags |= ((dir == SMP_OPT_DIR_REQ)
? SPOE_CTX_FL_REQ_PROCESS
: SPOE_CTX_FL_RSP_PROCESS);
return 1;
}
static inline void spoe_stop_processing(struct spoe_agent *agent, struct spoe_context *ctx)
{
struct spoe_appctx *sa = ctx->spoe_appctx;
if (!(ctx->flags & SPOE_CTX_FL_PROCESS))
return;
_HA_ATOMIC_INC(&agent->counters.nb_processed);
if (sa) {
if (sa->status_code == SPOP_ERR_NONE)
sa->status_code = spoe_ctx_err_to_spop_err(ctx->status_code);
sa->spoe_ctx = NULL;
appctx_strm(sa->owner)->parent = NULL;
appctx_wakeup(sa->owner);
}
/* Reset the flag to allow next processing */
ctx->flags &= ~SPOE_CTX_FL_PROCESS;
/* Reset processing timer */
ctx->process_exp = TICK_ETERNITY;
ctx->strm->req.analyse_exp = TICK_ETERNITY;
ctx->strm->res.analyse_exp = TICK_ETERNITY;
spoe_release_buffer(&ctx->buffer, &ctx->buffer_wait);
ctx->spoe_appctx = NULL;
}
/* Process a list of SPOE messages. First, this functions will process messages
* and send them to an agent in a NOTIFY frame. Then, it will wait a ACK frame
* to process corresponding actions. During all the processing, it returns 0
* and it returns 1 when the processing is finished. If an error occurred, -1
* is returned. */
static int spoe_process_messages(struct stream *s, struct spoe_context *ctx,
struct list *messages, int dir, int type)
{
struct spoe_config *conf = FLT_CONF(ctx->filter);
struct spoe_agent *agent = conf->agent;
int ret = 1;
if (ctx->state == SPOE_CTX_ST_ERROR)
goto end;
if (tick_is_expired(ctx->process_exp, now_ms) && ctx->state != SPOE_CTX_ST_DONE) {
ctx->status_code = SPOE_CTX_ERR_TOUT;
goto end;
}
if (ctx->state == SPOE_CTX_ST_READY) {
if (!tick_isset(ctx->process_exp)) {
ctx->process_exp = tick_add_ifset(now_ms, agent->timeout.processing);
if (dir == SMP_OPT_DIR_REQ)
s->req.analyse_exp = ctx->process_exp;
else
s->res.analyse_exp = ctx->process_exp;
}
ret = spoe_start_processing(agent, ctx, dir);
if (!ret)
goto out;
ctx->state = SPOE_CTX_ST_ENCODING_MSGS;
/* fall through */
}
if (ctx->state == SPOE_CTX_ST_ENCODING_MSGS) {
struct appctx *appctx;
if (!spoe_acquire_buffer(&ctx->buffer, &ctx->buffer_wait))
goto out;
ret = spoe_encode_messages(s, ctx, messages, dir, type);
if (ret < 0)
goto end;
if (!ret)
goto skip;
appctx = spoe_create_appctx(ctx);
if (!appctx) {
ctx->status_code = SPOE_CTX_ERR_RES;
goto end;
}
ctx->state = SPOE_CTX_ST_SENDING_MSGS;
}
if (ctx->state == SPOE_CTX_ST_SENDING_MSGS) {
if (ctx->spoe_appctx)
appctx_wakeup(ctx->spoe_appctx->owner);
ret = 0;
goto out;
}
if (ctx->state == SPOE_CTX_ST_WAITING_ACK) {
ret = 0;
goto out;
}
if (ctx->state == SPOE_CTX_ST_DONE) {
spoe_process_actions(s, ctx, dir);
ret = 1;
ctx->frame_id++;
ctx->state = SPOE_CTX_ST_READY;
goto end;
}
out:
return ret;
skip:
ctx->stats.start_ts = 0;
ctx->state = SPOE_CTX_ST_READY;
spoe_stop_processing(agent, ctx);
return 1;
end:
spoe_update_stats(s, agent, ctx, dir);
spoe_stop_processing(agent, ctx);
if (ctx->status_code) {
_HA_ATOMIC_INC(&agent->counters.nb_errors);
spoe_handle_processing_error(s, agent, ctx, dir);
ret = 1;
}
return ret;
}
/* Process a SPOE group, ie the list of messages attached to the group <grp>.
* See spoe_process_message for details. */
static int spoe_process_group(struct stream *s, struct spoe_context *ctx,
struct spoe_group *group, int dir)
{
struct spoe_config *conf = FLT_CONF(ctx->filter);
struct spoe_agent *agent = conf->agent;
int ret;
if (LIST_ISEMPTY(&group->messages))
return 1;
ret = spoe_process_messages(s, ctx, &group->messages, dir, SPOE_MSGS_BY_GROUP);
if (ret && ctx->stats.t_process != -1) {
if (ctx->status_code || !(agent->fe.options2 & PR_O2_NOLOGNORM))
send_log(&agent->fe, (!ctx->status_code ? LOG_NOTICE : LOG_WARNING),
"SPOE: [%s] <GROUP:%s> sid=%u st=%u %ld %llu/%llu\n",
agent->id, group->id, s->uniq_id, ctx->status_code, ctx->stats.t_process,
agent->counters.nb_errors, agent->counters.nb_processed);
}
return ret;
}
/* Process a SPOE event, ie the list of messages attached to the event <ev>.
* See spoe_process_message for details. */
static int spoe_process_event(struct stream *s, struct spoe_context *ctx,
enum spoe_event ev)
{
struct spoe_config *conf = FLT_CONF(ctx->filter);
struct spoe_agent *agent = conf->agent;
int dir, ret;
dir = ((ev < SPOE_EV_ON_SERVER_SESS) ? SMP_OPT_DIR_REQ : SMP_OPT_DIR_RES);
if (LIST_ISEMPTY(&(ctx->events[ev])))
return 1;
ret = spoe_process_messages(s, ctx, &(ctx->events[ev]), dir, SPOE_MSGS_BY_EVENT);
if (ret && ctx->stats.t_process != -1) {
if (ctx->status_code || !(agent->fe.options2 & PR_O2_NOLOGNORM))
send_log(&agent->fe, (!ctx->status_code ? LOG_NOTICE : LOG_WARNING),
"SPOE: [%s] <EVENT:%s> sid=%u st=%u %ld %llu/%llu\n",
agent->id, spoe_event_str[ev], s->uniq_id, ctx->status_code, ctx->stats.t_process,
agent->counters.nb_errors, agent->counters.nb_processed);
}
return ret;
}
/***************************************************************************
* Functions that create/destroy SPOE contexts
**************************************************************************/
static int spoe_acquire_buffer(struct buffer *buf, struct buffer_wait *buffer_wait)
{
if (buf->size)
return 1;
b_dequeue(buffer_wait);
if (b_alloc(buf, DB_CHANNEL))
return 1;
b_requeue(DB_CHANNEL, buffer_wait);
return 0;
}
static void spoe_release_buffer(struct buffer *buf, struct buffer_wait *buffer_wait)
{
b_dequeue(buffer_wait);
/* Release the buffer if needed */
if (buf->size) {
b_free(buf);
offer_buffers(buffer_wait->target, 1);
}
}
static int spoe_wakeup_context(struct spoe_context *ctx)
{
task_wakeup(ctx->strm->task, TASK_WOKEN_MSG);
return 1;
}
static struct spoe_context *spoe_create_context(struct stream *s, struct filter *filter)
{
struct spoe_config *conf = FLT_CONF(filter);
struct spoe_context *ctx;
ctx = pool_zalloc(pool_head_spoe_ctx);
if (ctx == NULL) {
return NULL;
}
ctx->filter = filter;
ctx->state = SPOE_CTX_ST_NONE;
ctx->status_code = SPOE_CTX_ERR_NONE;
ctx->flags = 0;
ctx->events = conf->agent->events;
ctx->groups = &conf->agent->groups;
ctx->buffer = BUF_NULL;
LIST_INIT(&ctx->buffer_wait.list);
ctx->buffer_wait.target = ctx;
ctx->buffer_wait.wakeup_cb = (int (*)(void *))spoe_wakeup_context;
ctx->stream_id = 0;
ctx->frame_id = 1;
ctx->process_exp = TICK_ETERNITY;
ctx->stats.start_ts = 0;
ctx->stats.t_process = -1;
ctx->stats.t_total = 0;
ctx->strm = s;
ctx->state = SPOE_CTX_ST_READY;
filter->ctx = ctx;
return ctx;
}
static void spoe_destroy_context(struct filter *filter)
{
struct spoe_config *conf = FLT_CONF(filter);
struct spoe_context *ctx = filter->ctx;
if (!ctx)
return;
spoe_stop_processing(conf->agent, ctx);
pool_free(pool_head_spoe_ctx, ctx);
filter->ctx = NULL;
}
static void spoe_reset_context(struct spoe_context *ctx)
{
ctx->state = SPOE_CTX_ST_READY;
ctx->flags &= ~SPOE_CTX_FL_PROCESS;
ctx->stats.start_ts = 0;
ctx->stats.t_process = -1;
ctx->stats.t_total = 0;
}
/***************************************************************************
* Hooks that manage the filter lifecycle (init/check/deinit)
**************************************************************************/
/* Initialize the SPOE filter. Returns -1 on error, else 0. */
static int spoe_init(struct proxy *px, struct flt_conf *fconf)
{
struct spoe_config *conf = fconf->conf;
/* conf->agent->fe was already initialized during the config
* parsing. Finish initialization. */
conf->agent->fe.fe_counters.last_change = ns_to_sec(now_ns);
conf->agent->fe.cap = PR_CAP_FE;
conf->agent->fe.mode = PR_MODE_SPOP;
conf->agent->fe.maxconn = 0;
conf->agent->fe.options2 |= PR_O2_INDEPSTR;
conf->agent->fe.conn_retries = CONN_RETRIES;
conf->agent->fe.accept = frontend_accept;
conf->agent->fe.srv = NULL;
conf->agent->fe.timeout.client = TICK_ETERNITY;
conf->agent->fe.fe_req_ana = AN_REQ_SWITCHING_RULES;
conf->agent->engine_id = generate_pseudo_uuid();
if (conf->agent->engine_id == NULL)
return -1;
fconf->flags |= FLT_CFG_FL_HTX;
return 0;
}
/* Free resources allocated by the SPOE filter. */
static void spoe_deinit(struct proxy *px, struct flt_conf *fconf)
{
struct spoe_config *conf = fconf->conf;
if (conf) {
struct spoe_agent *agent = conf->agent;
spoe_release_agent(agent);
free(conf->id);
free(conf);
}
fconf->conf = NULL;
}
/* Check configuration of a SPOE filter for a specified proxy.
* Return 1 on error, else 0. */
static int spoe_check(struct proxy *px, struct flt_conf *fconf)
{
struct flt_conf *f;
struct spoe_config *conf = fconf->conf;
struct proxy *target;
/* Check all SPOE filters for proxy <px> to be sure all SPOE agent names
* are uniq */
list_for_each_entry(f, &px->filter_configs, list) {
struct spoe_config *c = f->conf;
/* This is not an SPOE filter */
if (f->id != spoe_filter_id)
continue;
/* This is the current SPOE filter */
if (f == fconf)
continue;
/* Check engine Id. It should be uniq */
if (strcmp(conf->id, c->id) == 0) {
ha_alert("Proxy %s : duplicated name for SPOE engine '%s'.\n",
px->id, conf->id);
return 1;
}
}
target = proxy_be_by_name(conf->agent->b.name);
if (target == NULL) {
ha_alert("Proxy %s : unknown backend '%s' used by SPOE agent '%s'"
" declared at %s:%d.\n",
px->id, conf->agent->b.name, conf->agent->id,
conf->agent->conf.file, conf->agent->conf.line);
return 1;
}
if (target->mode == PR_MODE_TCP) {
/* Convert legacy SPOP backend by added the right mode */
target->mode = PR_MODE_SPOP;
}
if (target->mode != PR_MODE_SPOP) {
ha_alert("Proxy %s : backend '%s' used by SPOE agent '%s' declared"
" at %s:%d must use SPOP mode.\n",
px->id, target->id, conf->agent->id,
conf->agent->conf.file, conf->agent->conf.line);
return 1;
}
if (postresolve_logger_list(NULL, &conf->agent->fe.loggers, "SPOE agent", conf->agent->id) & ERR_CODE)
return 1;
ha_free(&conf->agent->b.name);
conf->agent->b.be = target;
return 0;
}
/**************************************************************************
* Hooks attached to a stream
*************************************************************************/
/* Called when a filter instance is created and attach to a stream. It creates
* the context that will be used to process this stream. */
static int spoe_start(struct stream *s, struct filter *filter)
{
struct spoe_config *conf = FLT_CONF(filter);
struct spoe_agent *agent = conf->agent;
struct spoe_context *ctx;
if ((ctx = spoe_create_context(s, filter)) == NULL) {
send_log(&agent->fe, LOG_EMERG,
"SPOE: [%s] failed to create SPOE context\n",
agent->id);
return 0;
}
if (!LIST_ISEMPTY(&ctx->events[SPOE_EV_ON_TCP_REQ_FE]))
filter->pre_analyzers |= AN_REQ_INSPECT_FE;
if (!LIST_ISEMPTY(&ctx->events[SPOE_EV_ON_TCP_REQ_BE]))
filter->pre_analyzers |= AN_REQ_INSPECT_BE;
if (!LIST_ISEMPTY(&ctx->events[SPOE_EV_ON_TCP_RSP]))
filter->pre_analyzers |= AN_RES_INSPECT;
if (!LIST_ISEMPTY(&ctx->events[SPOE_EV_ON_HTTP_REQ_FE]))
filter->pre_analyzers |= AN_REQ_HTTP_PROCESS_FE;
if (!LIST_ISEMPTY(&ctx->events[SPOE_EV_ON_HTTP_REQ_BE]))
filter->pre_analyzers |= AN_REQ_HTTP_PROCESS_BE;
if (!LIST_ISEMPTY(&ctx->events[SPOE_EV_ON_HTTP_RSP]))
filter->pre_analyzers |= AN_RES_HTTP_PROCESS_FE;
return 1;
}
/* Called when a filter instance is detached from a stream. It release the
* attached SPOE context. */
static void spoe_stop(struct stream *s, struct filter *filter)
{
spoe_destroy_context(filter);
}
/*
* Called when the stream is woken up because of expired timer.
*/
static void spoe_check_timeouts(struct stream *s, struct filter *filter)
{
struct spoe_context *ctx = filter->ctx;
if (tick_is_expired(ctx->process_exp, now_ms))
s->pending_events |= TASK_WOKEN_MSG;
}
/* Called when we are ready to filter data on a channel */
static int spoe_start_analyze(struct stream *s, struct filter *filter, struct channel *chn)
{
struct spoe_context *ctx = filter->ctx;
int ret = 1;
if (ctx->state == SPOE_CTX_ST_NONE)
goto out;
if (!(chn->flags & CF_ISRESP)) {
if (filter->pre_analyzers & AN_REQ_INSPECT_FE)
chn->analysers |= AN_REQ_INSPECT_FE;
if (filter->pre_analyzers & AN_REQ_INSPECT_BE)
chn->analysers |= AN_REQ_INSPECT_BE;
if (ctx->flags & SPOE_CTX_FL_CLI_CONNECTED)
goto out;
ctx->stream_id = s->uniq_id;
ret = spoe_process_event(s, ctx, SPOE_EV_ON_CLIENT_SESS);
if (!ret)
goto out;
ctx->flags |= SPOE_CTX_FL_CLI_CONNECTED;
}
else {
if (filter->pre_analyzers & AN_RES_INSPECT)
chn->analysers |= AN_RES_INSPECT;
if (ctx->flags & SPOE_CTX_FL_SRV_CONNECTED)
goto out;
ret = spoe_process_event(s, ctx, SPOE_EV_ON_SERVER_SESS);
if (!ret) {
channel_dont_read(chn);
channel_dont_close(chn);
goto out;
}
ctx->flags |= SPOE_CTX_FL_SRV_CONNECTED;
}
out:
return ret;
}
/* Called before a processing happens on a given channel */
static int spoe_chn_pre_analyze(struct stream *s, struct filter *filter,
struct channel *chn, unsigned an_bit)
{
struct spoe_context *ctx = filter->ctx;
int ret = 1;
if (ctx->state == SPOE_CTX_ST_NONE)
goto out;
switch (an_bit) {
case AN_REQ_INSPECT_FE:
ret = spoe_process_event(s, ctx, SPOE_EV_ON_TCP_REQ_FE);
break;
case AN_REQ_INSPECT_BE:
ret = spoe_process_event(s, ctx, SPOE_EV_ON_TCP_REQ_BE);
break;
case AN_RES_INSPECT:
ret = spoe_process_event(s, ctx, SPOE_EV_ON_TCP_RSP);
break;
case AN_REQ_HTTP_PROCESS_FE:
ret = spoe_process_event(s, ctx, SPOE_EV_ON_HTTP_REQ_FE);
break;
case AN_REQ_HTTP_PROCESS_BE:
ret = spoe_process_event(s, ctx, SPOE_EV_ON_HTTP_REQ_BE);
break;
case AN_RES_HTTP_PROCESS_FE:
ret = spoe_process_event(s, ctx, SPOE_EV_ON_HTTP_RSP);
break;
}
out:
if (!ret && (chn->flags & CF_ISRESP)) {
channel_dont_read(chn);
channel_dont_close(chn);
}
return ret;
}
/* Called when the filtering on the channel ends. */
static int spoe_end_analyze(struct stream *s, struct filter *filter, struct channel *chn)
{
struct spoe_context *ctx = filter->ctx;
if (!(ctx->flags & SPOE_CTX_FL_PROCESS)) {
spoe_reset_context(ctx);
}
return 1;
}
/********************************************************************
* Functions that manage the filter initialization
********************************************************************/
struct flt_ops spoe_ops = {
/* Manage SPOE filter, called for each filter declaration */
.init = spoe_init,
.deinit = spoe_deinit,
.check = spoe_check,
/* Handle start/stop of SPOE */
.attach = spoe_start,
.detach = spoe_stop,
.check_timeouts = spoe_check_timeouts,
/* Handle channels activity */
.channel_start_analyze = spoe_start_analyze,
.channel_pre_analyze = spoe_chn_pre_analyze,
.channel_end_analyze = spoe_end_analyze,
};
static int cfg_parse_spoe_agent(const char *file, int linenum, char **args, int kwm)
{
const char *err;
int i, err_code = 0;
if ((cfg_scope == NULL && curengine != NULL) ||
(cfg_scope != NULL && curengine == NULL) ||
(curengine != NULL && cfg_scope != NULL && strcmp(curengine, cfg_scope) != 0))
goto out;
if (strcmp(args[0], "spoe-agent") == 0) { /* new spoe-agent section */
if (!*args[1]) {
ha_alert("parsing [%s:%d] : missing name for spoe-agent section.\n",
file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
if (alertif_too_many_args(1, file, linenum, args, &err_code)) {
err_code |= ERR_ABORT;
goto out;
}
err = invalid_char(args[1]);
if (err) {
ha_alert("parsing [%s:%d] : character '%c' is not permitted in '%s' name '%s'.\n",
file, linenum, *err, args[0], args[1]);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
if (curagent != NULL) {
ha_alert("parsing [%s:%d] : another spoe-agent section previously defined.\n",
file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
if ((curagent = calloc(1, sizeof(*curagent))) == NULL) {
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
curagent->id = strdup(args[1]);
curagent->conf.file = strdup(file);
curagent->conf.line = linenum;
curagent->timeout.processing = TICK_ETERNITY;
curagent->var_pfx = NULL;
curagent->var_on_error = NULL;
curagent->var_t_process = NULL;
curagent->var_t_total = NULL;
curagent->flags = SPOE_FL_PIPELINING;
curagent->max_frame_size = SPOP_MAX_FRAME_SIZE;
if ((curagent->events = calloc(SPOE_EV_EVENTS, sizeof(*curagent->events))) == NULL) {
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
for (i = 0; i < SPOE_EV_EVENTS; ++i)
LIST_INIT(&curagent->events[i]);
LIST_INIT(&curagent->groups);
LIST_INIT(&curagent->messages);
}
else if (strcmp(args[0], "use-backend") == 0) {
if (!*args[1]) {
ha_alert("parsing [%s:%d] : '%s' expects a backend name.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
free(curagent->b.name);
curagent->b.name = strdup(args[1]);
}
else if (strcmp(args[0], "messages") == 0) {
int cur_arg = 1;
while (*args[cur_arg]) {
struct spoe_placeholder *ph = NULL;
list_for_each_entry(ph, &curmphs, list) {
if (strcmp(ph->id, args[cur_arg]) == 0) {
ha_alert("parsing [%s:%d]: spoe-message '%s' already used.\n",
file, linenum, args[cur_arg]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
if ((ph = calloc(1, sizeof(*ph))) == NULL) {
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
ph->id = strdup(args[cur_arg]);
LIST_APPEND(&curmphs, &ph->list);
cur_arg++;
}
}
else if (strcmp(args[0], "groups") == 0) {
int cur_arg = 1;
while (*args[cur_arg]) {
struct spoe_placeholder *ph = NULL;
list_for_each_entry(ph, &curgphs, list) {
if (strcmp(ph->id, args[cur_arg]) == 0) {
ha_alert("parsing [%s:%d]: spoe-group '%s' already used.\n",
file, linenum, args[cur_arg]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
if ((ph = calloc(1, sizeof(*ph))) == NULL) {
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
ph->id = strdup(args[cur_arg]);
LIST_APPEND(&curgphs, &ph->list);
cur_arg++;
}
}
else if (strcmp(args[0], "timeout") == 0) {
unsigned int *tv = NULL;
const char *res;
unsigned timeout;
if (!*args[1]) {
ha_alert("parsing [%s:%d] : 'timeout' expects 'hello', 'idle' and 'processing'.\n",
file, linenum);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (alertif_too_many_args(2, file, linenum, args, &err_code))
goto out;
if (strcmp(args[1], "hello") == 0) {
/* TODO: Add a warning or a diag ? Ignore it for now */
goto out;
}
else if (strcmp(args[1], "idle") == 0) {
/* TODO: Add a warning or a diag ? Ignore it for now */
goto out;
}
else if (strcmp(args[1], "processing") == 0)
tv = &curagent->timeout.processing;
else {
ha_alert("parsing [%s:%d] : 'timeout' supports 'processing' (got %s).\n",
file, linenum, args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (!*args[2]) {
ha_alert("parsing [%s:%d] : 'timeout %s' expects an integer value (in milliseconds).\n",
file, linenum, args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
res = parse_time_err(args[2], &timeout, TIME_UNIT_MS);
if (res == PARSE_TIME_OVER) {
ha_alert("parsing [%s:%d]: timer overflow in argument <%s> to <%s %s>, maximum value is 2147483647 ms (~24.8 days).\n",
file, linenum, args[2], args[0], args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
else if (res == PARSE_TIME_UNDER) {
ha_alert("parsing [%s:%d]: timer underflow in argument <%s> to <%s %s>, minimum non-null value is 1 ms.\n",
file, linenum, args[2], args[0], args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
else if (res) {
ha_alert("parsing [%s:%d] : unexpected character '%c' in 'timeout %s'.\n",
file, linenum, *res, args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
*tv = MS_TO_TICKS(timeout);
}
else if (strcmp(args[0], "option") == 0) {
if (!*args[1]) {
ha_alert("parsing [%s:%d]: '%s' expects an option name.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (strcmp(args[1], "pipelining") == 0) {
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
if (kwm == 1)
curagent->flags &= ~SPOE_FL_PIPELINING;
else
curagent->flags |= SPOE_FL_PIPELINING;
goto out;
}
else if (strcmp(args[1], "async") == 0) {
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
/* TODO: Add a warning or a diag ? Ignore it for now */
goto out;
}
else if (strcmp(args[1], "send-frag-payload") == 0) {
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
/* TODO: Add a warning or a diag ? Ignore it for now */
goto out;
}
else if (strcmp(args[1], "dontlog-normal") == 0) {
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
if (kwm == 1)
curpxopts2 &= ~PR_O2_NOLOGNORM;
else
curpxopts2 |= PR_O2_NOLOGNORM;
goto out;
}
/* Following options does not support negation */
if (kwm == 1) {
ha_alert("parsing [%s:%d]: negation is not supported for option '%s'.\n",
file, linenum, args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (strcmp(args[1], "var-prefix") == 0) {
char *tmp;
if (!*args[2]) {
ha_alert("parsing [%s:%d]: '%s %s' expects a value.\n",
file, linenum, args[0],
args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (alertif_too_many_args(2, file, linenum, args, &err_code))
goto out;
tmp = args[2];
while (*tmp) {
if (!isalnum((unsigned char)*tmp) && *tmp != '_' && *tmp != '.') {
ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z0-9_.] chars.\n",
file, linenum, args[0], args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
tmp++;
}
curagent->var_pfx = strdup(args[2]);
}
else if (strcmp(args[1], "force-set-var") == 0) {
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
curagent->flags |= SPOE_FL_FORCE_SET_VAR;
}
else if (strcmp(args[1], "continue-on-error") == 0) {
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
curagent->flags |= SPOE_FL_CONT_ON_ERR;
}
else if (strcmp(args[1], "set-on-error") == 0) {
char *tmp;
if (!*args[2]) {
ha_alert("parsing [%s:%d]: '%s %s' expects a value.\n",
file, linenum, args[0],
args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (alertif_too_many_args(2, file, linenum, args, &err_code))
goto out;
tmp = args[2];
while (*tmp) {
if (!isalnum((unsigned char)*tmp) && *tmp != '_' && *tmp != '.') {
ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z0-9_.] chars.\n",
file, linenum, args[0], args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
tmp++;
}
curagent->var_on_error = strdup(args[2]);
}
else if (strcmp(args[1], "set-process-time") == 0) {
char *tmp;
if (!*args[2]) {
ha_alert("parsing [%s:%d]: '%s %s' expects a value.\n",
file, linenum, args[0],
args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (alertif_too_many_args(2, file, linenum, args, &err_code))
goto out;
tmp = args[2];
while (*tmp) {
if (!isalnum((unsigned char)*tmp) && *tmp != '_' && *tmp != '.') {
ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z0-9_.] chars.\n",
file, linenum, args[0], args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
tmp++;
}
curagent->var_t_process = strdup(args[2]);
}
else if (strcmp(args[1], "set-total-time") == 0) {
char *tmp;
if (!*args[2]) {
ha_alert("parsing [%s:%d]: '%s %s' expects a value.\n",
file, linenum, args[0],
args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (alertif_too_many_args(2, file, linenum, args, &err_code))
goto out;
tmp = args[2];
while (*tmp) {
if (!isalnum((unsigned char)*tmp) && *tmp != '_' && *tmp != '.') {
ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z0-9_.] chars.\n",
file, linenum, args[0], args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
tmp++;
}
curagent->var_t_total = strdup(args[2]);
}
else {
ha_alert("parsing [%s:%d]: option '%s' is not supported.\n",
file, linenum, args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
else if (strcmp(args[0], "maxconnrate") == 0) {
if (!*args[1]) {
ha_alert("parsing [%s:%d] : '%s' expects an integer argument.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
/* TODO: Add a warning or a diag ? Ignore it for now */
}
else if (strcmp(args[0], "maxerrrate") == 0) {
if (!*args[1]) {
ha_alert("parsing [%s:%d] : '%s' expects an integer argument.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
/* TODO: Add a warning or a diag ? Ignore it for now */
}
else if (strcmp(args[0], "max-frame-size") == 0) {
if (!*args[1]) {
ha_alert("parsing [%s:%d] : '%s' expects an integer argument.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
curagent->max_frame_size = atol(args[1]);
if (curagent->max_frame_size < SPOP_MIN_FRAME_SIZE ||
curagent->max_frame_size > SPOP_MAX_FRAME_SIZE) {
ha_alert("parsing [%s:%d] : '%s' expects a positive integer argument in the range [%d, %d].\n",
file, linenum, args[0], SPOP_MIN_FRAME_SIZE, SPOP_MAX_FRAME_SIZE);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
else if (strcmp(args[0], "max-waiting-frames") == 0) {
if (!*args[1]) {
ha_alert("parsing [%s:%d] : '%s' expects an integer argument.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (alertif_too_many_args(1, file, linenum, args, &err_code))
goto out;
/* TODO: Add a warning or a diag ? Ignore it for now */
}
else if (strcmp(args[0], "register-var-names") == 0) {
int cur_arg;
if (!*args[1]) {
ha_alert("parsing [%s:%d] : '%s' expects one or more variable names.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
cur_arg = 1;
while (*args[cur_arg]) {
struct spoe_var_placeholder *vph;
if ((vph = calloc(1, sizeof(*vph))) == NULL) {
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
if ((vph->name = strdup(args[cur_arg])) == NULL) {
free(vph);
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
LIST_APPEND(&curvars, &vph->list);
cur_arg++;
}
}
else if (strcmp(args[0], "log") == 0) {
char *errmsg = NULL;
if (!parse_logger(args, &curloggers, (kwm == 1), file, linenum, &errmsg)) {
ha_alert("parsing [%s:%d] : %s : %s\n", file, linenum, args[0], errmsg);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
else if (*args[0]) {
ha_alert("parsing [%s:%d] : unknown keyword '%s' in spoe-agent section.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
out:
return err_code;
}
static int cfg_parse_spoe_group(const char *file, int linenum, char **args, int kwm)
{
struct spoe_group *grp;
const char *err;
int err_code = 0;
if ((cfg_scope == NULL && curengine != NULL) ||
(cfg_scope != NULL && curengine == NULL) ||
(curengine != NULL && cfg_scope != NULL && strcmp(curengine, cfg_scope) != 0))
goto out;
if (strcmp(args[0], "spoe-group") == 0) { /* new spoe-group section */
if (!*args[1]) {
ha_alert("parsing [%s:%d] : missing name for spoe-group section.\n",
file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
if (alertif_too_many_args(1, file, linenum, args, &err_code)) {
err_code |= ERR_ABORT;
goto out;
}
err = invalid_char(args[1]);
if (err) {
ha_alert("parsing [%s:%d] : character '%c' is not permitted in '%s' name '%s'.\n",
file, linenum, *err, args[0], args[1]);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
list_for_each_entry(grp, &curgrps, list) {
if (strcmp(grp->id, args[1]) == 0) {
ha_alert("parsing [%s:%d]: spoe-group section '%s' has the same"
" name as another one declared at %s:%d.\n",
file, linenum, args[1], grp->conf.file, grp->conf.line);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
if ((curgrp = calloc(1, sizeof(*curgrp))) == NULL) {
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
curgrp->id = strdup(args[1]);
curgrp->conf.file = strdup(file);
curgrp->conf.line = linenum;
LIST_INIT(&curgrp->phs);
LIST_INIT(&curgrp->messages);
LIST_APPEND(&curgrps, &curgrp->list);
}
else if (strcmp(args[0], "messages") == 0) {
int cur_arg = 1;
while (*args[cur_arg]) {
struct spoe_placeholder *ph = NULL;
list_for_each_entry(ph, &curgrp->phs, list) {
if (strcmp(ph->id, args[cur_arg]) == 0) {
ha_alert("parsing [%s:%d]: spoe-message '%s' already used.\n",
file, linenum, args[cur_arg]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
if ((ph = calloc(1, sizeof(*ph))) == NULL) {
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
ph->id = strdup(args[cur_arg]);
LIST_APPEND(&curgrp->phs, &ph->list);
cur_arg++;
}
}
else if (*args[0]) {
ha_alert("parsing [%s:%d] : unknown keyword '%s' in spoe-group section.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
out:
return err_code;
}
static int cfg_parse_spoe_message(const char *file, int linenum, char **args, int kwm)
{
struct spoe_message *msg;
struct spoe_arg *arg;
const char *err;
char *errmsg = NULL;
int err_code = 0;
if ((cfg_scope == NULL && curengine != NULL) ||
(cfg_scope != NULL && curengine == NULL) ||
(curengine != NULL && cfg_scope != NULL && strcmp(curengine, cfg_scope) != 0))
goto out;
if (strcmp(args[0], "spoe-message") == 0) { /* new spoe-message section */
if (!*args[1]) {
ha_alert("parsing [%s:%d] : missing name for spoe-message section.\n",
file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
if (alertif_too_many_args(1, file, linenum, args, &err_code)) {
err_code |= ERR_ABORT;
goto out;
}
err = invalid_char(args[1]);
if (err) {
ha_alert("parsing [%s:%d] : character '%c' is not permitted in '%s' name '%s'.\n",
file, linenum, *err, args[0], args[1]);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
list_for_each_entry(msg, &curmsgs, list) {
if (strcmp(msg->id, args[1]) == 0) {
ha_alert("parsing [%s:%d]: spoe-message section '%s' has the same"
" name as another one declared at %s:%d.\n",
file, linenum, args[1], msg->conf.file, msg->conf.line);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
if ((curmsg = calloc(1, sizeof(*curmsg))) == NULL) {
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
curmsg->id = strdup(args[1]);
curmsg->id_len = strlen(curmsg->id);
curmsg->event = SPOE_EV_NONE;
curmsg->conf.file = strdup(file);
curmsg->conf.line = linenum;
curmsg->nargs = 0;
LIST_INIT(&curmsg->args);
LIST_INIT(&curmsg->acls);
LIST_INIT(&curmsg->by_evt);
LIST_INIT(&curmsg->by_grp);
LIST_APPEND(&curmsgs, &curmsg->list);
}
else if (strcmp(args[0], "args") == 0) {
int cur_arg = 1;
curproxy->conf.args.ctx = ARGC_SPOE;
curproxy->conf.args.file = file;
curproxy->conf.args.line = linenum;
while (*args[cur_arg]) {
char *delim = strchr(args[cur_arg], '=');
int idx = 0;
if ((arg = calloc(1, sizeof(*arg))) == NULL) {
ha_alert("parsing [%s:%d] : out of memory.\n", file, linenum);
err_code |= ERR_ALERT | ERR_ABORT;
goto out;
}
if (!delim) {
arg->name = NULL;
arg->name_len = 0;
delim = args[cur_arg];
}
else {
arg->name = my_strndup(args[cur_arg], delim - args[cur_arg]);
arg->name_len = delim - args[cur_arg];
delim++;
}
arg->expr = sample_parse_expr((char*[]){delim, NULL},
&idx, file, linenum, &errmsg,
&curproxy->conf.args, NULL);
if (arg->expr == NULL) {
ha_alert("parsing [%s:%d] : '%s': %s.\n", file, linenum, args[0], errmsg);
err_code |= ERR_ALERT | ERR_FATAL;
free(arg->name);
free(arg);
goto out;
}
curmsg->nargs++;
LIST_APPEND(&curmsg->args, &arg->list);
cur_arg++;
}
curproxy->conf.args.file = NULL;
curproxy->conf.args.line = 0;
}
else if (strcmp(args[0], "acl") == 0) {
err = invalid_char(args[1]);
if (err) {
ha_alert("parsing [%s:%d] : character '%c' is not permitted in acl name '%s'.\n",
file, linenum, *err, args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (strcasecmp(args[1], "or") == 0) {
ha_alert("parsing [%s:%d] : acl name '%s' will never match. 'or' is used to express a "
"logical disjunction within a condition.\n",
file, linenum, args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (parse_acl((const char **)args + 1, &curmsg->acls, &errmsg, &curproxy->conf.args, file, linenum) == NULL) {
ha_alert("parsing [%s:%d] : error detected while parsing ACL '%s' : %s.\n",
file, linenum, args[1], errmsg);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
else if (strcmp(args[0], "event") == 0) {
if (!*args[1]) {
ha_alert("parsing [%s:%d] : missing event name.\n", file, linenum);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
/* if (alertif_too_many_args(1, file, linenum, args, &err_code)) */
/* goto out; */
if (strcmp(args[1], spoe_event_str[SPOE_EV_ON_CLIENT_SESS]) == 0)
curmsg->event = SPOE_EV_ON_CLIENT_SESS;
else if (strcmp(args[1], spoe_event_str[SPOE_EV_ON_SERVER_SESS]) == 0)
curmsg->event = SPOE_EV_ON_SERVER_SESS;
else if (strcmp(args[1], spoe_event_str[SPOE_EV_ON_TCP_REQ_FE]) == 0)
curmsg->event = SPOE_EV_ON_TCP_REQ_FE;
else if (strcmp(args[1], spoe_event_str[SPOE_EV_ON_TCP_REQ_BE]) == 0)
curmsg->event = SPOE_EV_ON_TCP_REQ_BE;
else if (strcmp(args[1], spoe_event_str[SPOE_EV_ON_TCP_RSP]) == 0)
curmsg->event = SPOE_EV_ON_TCP_RSP;
else if (strcmp(args[1], spoe_event_str[SPOE_EV_ON_HTTP_REQ_FE]) == 0)
curmsg->event = SPOE_EV_ON_HTTP_REQ_FE;
else if (strcmp(args[1], spoe_event_str[SPOE_EV_ON_HTTP_REQ_BE]) == 0)
curmsg->event = SPOE_EV_ON_HTTP_REQ_BE;
else if (strcmp(args[1], spoe_event_str[SPOE_EV_ON_HTTP_RSP]) == 0)
curmsg->event = SPOE_EV_ON_HTTP_RSP;
else {
ha_alert("parsing [%s:%d] : unknown event '%s'.\n",
file, linenum, args[1]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
if (strcmp(args[2], "if") == 0 || strcmp(args[2], "unless") == 0) {
struct acl_cond *cond;
cond = build_acl_cond(file, linenum, &curmsg->acls,
curproxy, (const char **)args+2,
&errmsg);
if (cond == NULL) {
ha_alert("parsing [%s:%d] : error detected while "
"parsing an 'event %s' condition : %s.\n",
file, linenum, args[1], errmsg);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
curmsg->cond = cond;
}
else if (*args[2]) {
ha_alert("parsing [%s:%d]: 'event %s' expects either 'if' "
"or 'unless' followed by a condition but found '%s'.\n",
file, linenum, args[1], args[2]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
else if (!*args[0]) {
ha_alert("parsing [%s:%d] : unknown keyword '%s' in spoe-message section.\n",
file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
out:
free(errmsg);
return err_code;
}
/* Return -1 on error, else 0 */
static int parse_spoe_flt(char **args, int *cur_arg, struct proxy *px,
struct flt_conf *fconf, char **err, void *private)
{
struct list backup_sections;
struct spoe_config *conf;
struct spoe_message *msg, *msgback;
struct spoe_group *grp, *grpback;
struct spoe_placeholder *ph, *phback;
struct spoe_var_placeholder *vph, *vphback;
struct cfgfile cfg_file = {0};
struct logger *logger, *loggerback;
char *file = NULL, *engine = NULL;
int ret, pos = *cur_arg + 1;
LIST_INIT(&curmsgs);
LIST_INIT(&curgrps);
LIST_INIT(&curmphs);
LIST_INIT(&curgphs);
LIST_INIT(&curvars);
LIST_INIT(&curloggers);
curpxopts = 0;
curpxopts2 = 0;
conf = calloc(1, sizeof(*conf));
if (conf == NULL) {
memprintf(err, "%s: out of memory", args[*cur_arg]);
goto error;
}
conf->proxy = px;
while (*args[pos]) {
if (strcmp(args[pos], "config") == 0) {
if (!*args[pos+1]) {
memprintf(err, "'%s' : '%s' option without value",
args[*cur_arg], args[pos]);
goto error;
}
file = args[pos+1];
pos += 2;
}
else if (strcmp(args[pos], "engine") == 0) {
if (!*args[pos+1]) {
memprintf(err, "'%s' : '%s' option without value",
args[*cur_arg], args[pos]);
goto error;
}
engine = args[pos+1];
pos += 2;
}
else {
memprintf(err, "unknown keyword '%s'", args[pos]);
goto error;
}
}
if (file == NULL) {
memprintf(err, "'%s' : missing config file", args[*cur_arg]);
goto error;
}
/* backup sections and register SPOE sections */
LIST_INIT(&backup_sections);
cfg_backup_sections(&backup_sections);
cfg_register_section("spoe-agent", cfg_parse_spoe_agent, NULL);
cfg_register_section("spoe-group", cfg_parse_spoe_group, NULL);
cfg_register_section("spoe-message", cfg_parse_spoe_message, NULL);
/* Parse SPOE filter configuration file */
BUG_ON(px != curproxy);
curengine = engine;
curagent = NULL;
curmsg = NULL;
/* load the content of SPOE config file from cfg_file.filename into some
* area in .heap. readcfgfile() now parses the content of config files
* stored in RAM as separate chunks (see struct cfgfile in cfgparse.h),
* these chunks chained in cfg_cfgfiles global list.
*/
cfg_file.filename = file;
cfg_file.size = load_cfg_in_mem(file, &cfg_file.content);
if (cfg_file.size < 0) {
goto error;
}
ret = parse_cfg(&cfg_file);
ha_free(&cfg_file.content);
/* unregister SPOE sections and restore previous sections */
cfg_unregister_sections();
cfg_restore_sections(&backup_sections);
if (ret == -1) {
memprintf(err, "Could not open configuration file %s : %s",
file, strerror(errno));
goto error;
}
if (ret & (ERR_ABORT|ERR_FATAL)) {
memprintf(err, "Error(s) found in configuration file %s", file);
goto error;
}
/* Check SPOE agent */
if (curagent == NULL) {
memprintf(err, "No SPOE agent found in file %s", file);
goto error;
}
if (curagent->b.name == NULL) {
memprintf(err, "No backend declared for SPOE agent '%s' declared at %s:%d",
curagent->id, curagent->conf.file, curagent->conf.line);
goto error;
}
if (curagent->timeout.processing == TICK_ETERNITY) {
ha_warning("Proxy '%s': missing 'processing' timeout for SPOE agent '%s' declare at %s:%d.\n"
" | While not properly invalid, you will certainly encounter various problems\n"
" | with such a configuration. To fix this, please ensure it is set to a non-zero value.\n",
px->id, curagent->id, curagent->conf.file, curagent->conf.line);
}
if (curagent->var_pfx == NULL) {
char *tmp = curagent->id;
while (*tmp) {
if (!isalnum((unsigned char)*tmp) && *tmp != '_' && *tmp != '.') {
memprintf(err, "Invalid variable prefix '%s' for SPOE agent '%s' declared at %s:%d. "
"Use 'option var-prefix' to set it. Only [a-zA-Z0-9_.] chars are supported.\n",
curagent->id, curagent->id, curagent->conf.file, curagent->conf.line);
goto error;
}
tmp++;
}
curagent->var_pfx = strdup(curagent->id);
}
if (curagent->var_on_error) {
struct arg arg;
trash.data = snprintf(trash.area, trash.size, "txn.%s.%s",
curagent->var_pfx, curagent->var_on_error);
arg.type = ARGT_STR;
arg.data.str.area = trash.area;
arg.data.str.data = trash.data;
arg.data.str.size = 0; /* Set it to 0 to not release it in vars_check_arg() */
if (!vars_check_arg(&arg, err)) {
memprintf(err, "SPOE agent '%s': failed to register variable %s.%s (%s)",
curagent->id, curagent->var_pfx, curagent->var_on_error, *err);
goto error;
}
}
if (curagent->var_t_process) {
struct arg arg;
trash.data = snprintf(trash.area, trash.size, "txn.%s.%s",
curagent->var_pfx, curagent->var_t_process);
arg.type = ARGT_STR;
arg.data.str.area = trash.area;
arg.data.str.data = trash.data;
arg.data.str.size = 0; /* Set it to 0 to not release it in vars_check_arg() */
if (!vars_check_arg(&arg, err)) {
memprintf(err, "SPOE agent '%s': failed to register variable %s.%s (%s)",
curagent->id, curagent->var_pfx, curagent->var_t_process, *err);
goto error;
}
}
if (curagent->var_t_total) {
struct arg arg;
trash.data = snprintf(trash.area, trash.size, "txn.%s.%s",
curagent->var_pfx, curagent->var_t_total);
arg.type = ARGT_STR;
arg.data.str.area = trash.area;
arg.data.str.data = trash.data;
arg.data.str.size = 0; /* Set it to 0 to not release it in vars_check_arg() */
if (!vars_check_arg(&arg, err)) {
memprintf(err, "SPOE agent '%s': failed to register variable %s.%s (%s)",
curagent->id, curagent->var_pfx, curagent->var_t_process, *err);
goto error;
}
}
if (LIST_ISEMPTY(&curmphs) && LIST_ISEMPTY(&curgphs)) {
ha_warning("Proxy '%s': No message/group used by SPOE agent '%s' declared at %s:%d.\n",
px->id, curagent->id, curagent->conf.file, curagent->conf.line);
goto finish;
}
/* Replace placeholders by the corresponding messages for the SPOE
* agent */
list_for_each_entry(ph, &curmphs, list) {
list_for_each_entry(msg, &curmsgs, list) {
struct spoe_arg *arg;
unsigned int where;
if (strcmp(msg->id, ph->id) == 0) {
if ((px->cap & (PR_CAP_FE|PR_CAP_BE)) == (PR_CAP_FE|PR_CAP_BE)) {
if (msg->event == SPOE_EV_ON_TCP_REQ_BE)
msg->event = SPOE_EV_ON_TCP_REQ_FE;
if (msg->event == SPOE_EV_ON_HTTP_REQ_BE)
msg->event = SPOE_EV_ON_HTTP_REQ_FE;
}
if (!(px->cap & PR_CAP_FE) && (msg->event == SPOE_EV_ON_CLIENT_SESS ||
msg->event == SPOE_EV_ON_TCP_REQ_FE ||
msg->event == SPOE_EV_ON_HTTP_REQ_FE)) {
ha_warning("Proxy '%s': frontend event used on a backend proxy at %s:%d.\n",
px->id, msg->conf.file, msg->conf.line);
goto next_mph;
}
if (msg->event == SPOE_EV_NONE) {
ha_warning("Proxy '%s': Ignore SPOE message '%s' without event at %s:%d.\n",
px->id, msg->id, msg->conf.file, msg->conf.line);
goto next_mph;
}
where = 0;
switch (msg->event) {
case SPOE_EV_ON_CLIENT_SESS:
where |= SMP_VAL_FE_CON_ACC;
break;
case SPOE_EV_ON_TCP_REQ_FE:
where |= SMP_VAL_FE_REQ_CNT;
break;
case SPOE_EV_ON_HTTP_REQ_FE:
where |= SMP_VAL_FE_HRQ_HDR;
break;
case SPOE_EV_ON_TCP_REQ_BE:
if (px->cap & PR_CAP_FE)
where |= SMP_VAL_FE_REQ_CNT;
if (px->cap & PR_CAP_BE)
where |= SMP_VAL_BE_REQ_CNT;
break;
case SPOE_EV_ON_HTTP_REQ_BE:
if (px->cap & PR_CAP_FE)
where |= SMP_VAL_FE_HRQ_HDR;
if (px->cap & PR_CAP_BE)
where |= SMP_VAL_BE_HRQ_HDR;
break;
case SPOE_EV_ON_SERVER_SESS:
where |= SMP_VAL_BE_SRV_CON;
break;
case SPOE_EV_ON_TCP_RSP:
if (px->cap & PR_CAP_FE)
where |= SMP_VAL_FE_RES_CNT;
if (px->cap & PR_CAP_BE)
where |= SMP_VAL_BE_RES_CNT;
break;
case SPOE_EV_ON_HTTP_RSP:
if (px->cap & PR_CAP_FE)
where |= SMP_VAL_FE_HRS_HDR;
if (px->cap & PR_CAP_BE)
where |= SMP_VAL_BE_HRS_HDR;
break;
default:
break;
}
list_for_each_entry(arg, &msg->args, list) {
if (!(arg->expr->fetch->val & where)) {
memprintf(err, "Ignore SPOE message '%s' at %s:%d: "
"some args extract information from '%s', "
"none of which is available here ('%s')",
msg->id, msg->conf.file, msg->conf.line,
sample_ckp_names(arg->expr->fetch->use),
sample_ckp_names(where));
goto error;
}
}
msg->agent = curagent;
LIST_APPEND(&curagent->events[msg->event], &msg->by_evt);
goto next_mph;
}
}
memprintf(err, "SPOE agent '%s' try to use undefined SPOE message '%s' at %s:%d",
curagent->id, ph->id, curagent->conf.file, curagent->conf.line);
goto error;
next_mph:
continue;
}
/* Replace placeholders by the corresponding groups for the SPOE
* agent */
list_for_each_entry(ph, &curgphs, list) {
list_for_each_entry_safe(grp, grpback, &curgrps, list) {
if (strcmp(grp->id, ph->id) == 0) {
grp->agent = curagent;
LIST_DELETE(&grp->list);
LIST_APPEND(&curagent->groups, &grp->list);
goto next_aph;
}
}
memprintf(err, "SPOE agent '%s' try to use undefined SPOE group '%s' at %s:%d",
curagent->id, ph->id, curagent->conf.file, curagent->conf.line);
goto error;
next_aph:
continue;
}
/* Replace placeholders by the corresponding message for each SPOE
* group of the SPOE agent */
list_for_each_entry(grp, &curagent->groups, list) {
list_for_each_entry_safe(ph, phback, &grp->phs, list) {
list_for_each_entry(msg, &curmsgs, list) {
if (strcmp(msg->id, ph->id) == 0) {
if (msg->group != NULL) {
memprintf(err, "SPOE message '%s' already belongs to "
"the SPOE group '%s' declare at %s:%d",
msg->id, msg->group->id,
msg->group->conf.file,
msg->group->conf.line);
goto error;
}
/* Scope for arguments are not checked for now. We will check
* them only if a rule use the corresponding SPOE group. */
msg->agent = curagent;
msg->group = grp;
LIST_DELETE(&ph->list);
LIST_APPEND(&grp->messages, &msg->by_grp);
goto next_mph_grp;
}
}
memprintf(err, "SPOE group '%s' try to use undefined SPOE message '%s' at %s:%d",
grp->id, ph->id, curagent->conf.file, curagent->conf.line);
goto error;
next_mph_grp:
continue;
}
}
finish:
/* move curmsgs to the agent message list */
curmsgs.n->p = &curagent->messages;
curmsgs.p->n = &curagent->messages;
curagent->messages = curmsgs;
LIST_INIT(&curmsgs);
conf->id = strdup(engine ? engine : curagent->id);
conf->agent = curagent;
curagent->spoe_conf = conf;
/* Start agent's proxy initialization here. It will be finished during
* the filter init. */
memset(&conf->agent->fe, 0, sizeof(conf->agent->fe));
init_new_proxy(&conf->agent->fe);
conf->agent->fe.id = conf->agent->id;
conf->agent->fe.parent = conf->agent;
conf->agent->fe.options |= curpxopts;
conf->agent->fe.options2 |= curpxopts2;
list_for_each_entry_safe(logger, loggerback, &curloggers, list) {
LIST_DELETE(&logger->list);
LIST_APPEND(&conf->agent->fe.loggers, &logger->list);
}
list_for_each_entry_safe(ph, phback, &curmphs, list) {
LIST_DELETE(&ph->list);
spoe_release_placeholder(ph);
}
list_for_each_entry_safe(ph, phback, &curgphs, list) {
LIST_DELETE(&ph->list);
spoe_release_placeholder(ph);
}
list_for_each_entry_safe(vph, vphback, &curvars, list) {
struct arg arg;
trash.data = snprintf(trash.area, trash.size, "proc.%s.%s",
curagent->var_pfx, vph->name);
arg.type = ARGT_STR;
arg.data.str.area = trash.area;
arg.data.str.data = trash.data;
arg.data.str.size = 0; /* Set it to 0 to not release it in vars_check_arg() */
if (!vars_check_arg(&arg, err)) {
memprintf(err, "SPOE agent '%s': failed to register variable %s.%s (%s)",
curagent->id, curagent->var_pfx, vph->name, *err);
goto error;
}
LIST_DELETE(&vph->list);
free(vph->name);
free(vph);
}
list_for_each_entry_safe(grp, grpback, &curgrps, list) {
LIST_DELETE(&grp->list);
spoe_release_group(grp);
}
*cur_arg = pos;
fconf->id = spoe_filter_id;
fconf->ops = &spoe_ops;
fconf->conf = conf;
return 0;
error:
ha_free(&cfg_file.content);
spoe_release_agent(curagent);
list_for_each_entry_safe(ph, phback, &curmphs, list) {
LIST_DELETE(&ph->list);
spoe_release_placeholder(ph);
}
list_for_each_entry_safe(ph, phback, &curgphs, list) {
LIST_DELETE(&ph->list);
spoe_release_placeholder(ph);
}
list_for_each_entry_safe(vph, vphback, &curvars, list) {
LIST_DELETE(&vph->list);
free(vph->name);
free(vph);
}
list_for_each_entry_safe(grp, grpback, &curgrps, list) {
LIST_DELETE(&grp->list);
spoe_release_group(grp);
}
list_for_each_entry_safe(msg, msgback, &curmsgs, list) {
LIST_DELETE(&msg->list);
spoe_release_message(msg);
}
list_for_each_entry_safe(logger, loggerback, &curloggers, list) {
LIST_DELETE(&logger->list);
free(logger);
}
free(conf);
return -1;
}
/* Send message of a SPOE group. This is the action_ptr callback of a rule
* associated to a "send-spoe-group" action.
*
* It returns ACT_RET_CONT if processing is finished (with error or not), it returns
* ACT_RET_YIELD if the action is in progress. */
static enum act_return spoe_send_group(struct act_rule *rule, struct proxy *px,
struct session *sess, struct stream *s, int flags)
{
struct filter *filter;
struct spoe_agent *agent = NULL;
struct spoe_group *group = NULL;
struct spoe_context *ctx = NULL;
int ret, dir;
list_for_each_entry(filter, &s->strm_flt.filters, list) {
if (filter->config == rule->arg.act.p[0]) {
agent = rule->arg.act.p[2];
group = rule->arg.act.p[3];
ctx = filter->ctx;
break;
}
}
if (agent == NULL || group == NULL || ctx == NULL)
return ACT_RET_CONT;
if (ctx->state == SPOE_CTX_ST_NONE)
return ACT_RET_CONT;
switch (rule->from) {
case ACT_F_TCP_REQ_SES: dir = SMP_OPT_DIR_REQ; break;
case ACT_F_TCP_REQ_CNT: dir = SMP_OPT_DIR_REQ; break;
case ACT_F_TCP_RES_CNT: dir = SMP_OPT_DIR_RES; break;
case ACT_F_HTTP_REQ: dir = SMP_OPT_DIR_REQ; break;
case ACT_F_HTTP_RES: dir = SMP_OPT_DIR_RES; break;
default:
send_log(px, LOG_ERR, "SPOE: [%s] internal error while execute spoe-send-group\n",
agent->id);
return ACT_RET_CONT;
}
ret = spoe_process_group(s, ctx, group, dir);
if (ret == 1)
return ACT_RET_CONT;
else if (ret == 0) {
if (flags & ACT_OPT_FINAL) {
ctx->status_code = SPOE_CTX_ERR_INTERRUPT;
spoe_stop_processing(agent, ctx);
spoe_handle_processing_error(s, agent, ctx, dir);
return ACT_RET_CONT;
}
return ACT_RET_YIELD;
}
else
return ACT_RET_CONT;
}
/* Check an "send-spoe-group" action. Here, we'll try to find the real SPOE
* group associated to <rule>. The format of an rule using 'send-spoe-group'
* action should be:
*
* (http|tcp)-(request|response) send-spoe-group <engine-id> <group-id>
*
* So, we'll loop on each configured SPOE filter for the proxy <px> to find the
* SPOE engine matching <engine-id>. And then, we'll try to find the good group
* matching <group-id>. Finally, we'll check all messages referenced by the SPOE
* group.
*
* The function returns 1 in success case, otherwise, it returns 0 and err is
* filled.
*/
static int check_send_spoe_group(struct act_rule *rule, struct proxy *px, char **err)
{
struct flt_conf *fconf;
struct spoe_config *conf;
struct spoe_agent *agent = NULL;
struct spoe_group *group;
struct spoe_message *msg;
char *engine_id = rule->arg.act.p[0];
char *group_id = rule->arg.act.p[1];
unsigned int where = 0;
switch (rule->from) {
case ACT_F_TCP_REQ_SES: where = SMP_VAL_FE_SES_ACC; break;
case ACT_F_TCP_REQ_CNT: where = SMP_VAL_FE_REQ_CNT; break;
case ACT_F_TCP_RES_CNT: where = SMP_VAL_BE_RES_CNT; break;
case ACT_F_HTTP_REQ: where = SMP_VAL_FE_HRQ_HDR; break;
case ACT_F_HTTP_RES: where = SMP_VAL_BE_HRS_HDR; break;
default:
memprintf(err,
"internal error, unexpected rule->from=%d, please report this bug!",
rule->from);
goto error;
}
/* Try to find the SPOE engine by checking all SPOE filters for proxy
* <px> */
list_for_each_entry(fconf, &px->filter_configs, list) {
conf = fconf->conf;
/* This is not an SPOE filter */
if (fconf->id != spoe_filter_id)
continue;
/* This is the good engine */
if (strcmp(conf->id, engine_id) == 0) {
agent = conf->agent;
break;
}
}
if (agent == NULL) {
memprintf(err, "unable to find SPOE engine '%s' used by the send-spoe-group '%s'",
engine_id, group_id);
goto error;
}
/* Try to find the right group */
list_for_each_entry(group, &agent->groups, list) {
/* This is the good group */
if (strcmp(group->id, group_id) == 0)
break;
}
if (&group->list == &agent->groups) {
memprintf(err, "unable to find SPOE group '%s' into SPOE engine '%s' configuration",
group_id, engine_id);
goto error;
}
/* Ok, we found the group, we need to check messages and their
* arguments */
list_for_each_entry(msg, &group->messages, by_grp) {
struct spoe_arg *arg;
list_for_each_entry(arg, &msg->args, list) {
if (!(arg->expr->fetch->val & where)) {
memprintf(err, "Invalid SPOE message '%s' used by SPOE group '%s' at %s:%d: "
"some args extract information from '%s',"
"none of which is available here ('%s')",
msg->id, group->id, msg->conf.file, msg->conf.line,
sample_ckp_names(arg->expr->fetch->use),
sample_ckp_names(where));
goto error;
}
}
}
free(engine_id);
free(group_id);
rule->arg.act.p[0] = fconf; /* Associate filter config with the rule */
rule->arg.act.p[1] = conf; /* Associate SPOE config with the rule */
rule->arg.act.p[2] = agent; /* Associate SPOE agent with the rule */
rule->arg.act.p[3] = group; /* Associate SPOE group with the rule */
return 1;
error:
free(engine_id);
free(group_id);
return 0;
}
/* Parse 'send-spoe-group' action following the format:
*
* ... send-spoe-group <engine-id> <group-id>
*
* It returns ACT_RET_PRS_ERR if fails and <err> is filled with an error
* message. Otherwise, it returns ACT_RET_PRS_OK and parsing engine and group
* ids are saved and used later, when the rule will be checked.
*/
static enum act_parse_ret parse_send_spoe_group(const char **args, int *orig_arg, struct proxy *px,
struct act_rule *rule, char **err)
{
if (!*args[*orig_arg] || !*args[*orig_arg+1] ||
(*args[*orig_arg+2] && strcmp(args[*orig_arg+2], "if") != 0 && strcmp(args[*orig_arg+2], "unless") != 0)) {
memprintf(err, "expects 2 arguments: <engine-id> <group-id>");
return ACT_RET_PRS_ERR;
}
rule->arg.act.p[0] = strdup(args[*orig_arg]); /* Copy the SPOE engine id */
rule->arg.act.p[1] = strdup(args[*orig_arg+1]); /* Cope the SPOE group id */
(*orig_arg) += 2;
rule->action = ACT_CUSTOM;
rule->action_ptr = spoe_send_group;
rule->check_ptr = check_send_spoe_group;
return ACT_RET_PRS_OK;
}
/* returns the engine ID of the SPOE */
static int smp_fetch_spoe_engine_id(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct appctx *appctx;
struct spoe_agent *agent;
if (!smp->strm)
return 0;
appctx = sc_appctx(smp->strm->scf);
if (!appctx || appctx->applet != &spoe_applet)
return 0;
agent = spoe_appctx_agent(appctx);
if (!agent)
return 0;
smp->data.type = SMP_T_STR;
smp->data.u.str.area = agent->engine_id;
smp->data.u.str.data = strlen(agent->engine_id);
smp->flags = SMP_F_CONST;
return 1;
}
static int spoe_postcheck_spop_proxy(struct proxy *px)
{
struct server *srv;
int err_code = ERR_NONE;
if (!(px->cap & PR_CAP_BE) || px->mode != PR_MODE_SPOP)
goto out;
for (srv = px->srv; srv; srv = srv->next) {
if (srv->pool_conn_name) {
ha_free(&srv->pool_conn_name);
release_sample_expr(srv->pool_conn_name_expr);
}
srv->pool_conn_name = strdup("spoe.engine-id");
if (!srv->pool_conn_name) {
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
srv->pool_conn_name_expr = _parse_srv_expr(srv->pool_conn_name, &px->conf.args, NULL, 0, NULL);
if (!srv->pool_conn_name_expr) {
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}
}
out:
return err_code;
}
REGISTER_POST_PROXY_CHECK(spoe_postcheck_spop_proxy);
/* Declare the filter parser for "spoe" keyword */
static struct flt_kw_list flt_kws = { "SPOE", { }, {
{ "spoe", parse_spoe_flt, NULL },
{ NULL, NULL, NULL },
}
};
INITCALL1(STG_REGISTER, flt_register_keywords, &flt_kws);
/* Delcate the action parser for "spoe-action" keyword */
static struct action_kw_list tcp_req_action_kws = { { }, {
{ "send-spoe-group", parse_send_spoe_group },
{ /* END */ },
}
};
INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &tcp_req_action_kws);
static struct action_kw_list tcp_res_action_kws = { { }, {
{ "send-spoe-group", parse_send_spoe_group },
{ /* END */ },
}
};
INITCALL1(STG_REGISTER, tcp_res_cont_keywords_register, &tcp_res_action_kws);
static struct action_kw_list http_req_action_kws = { { }, {
{ "send-spoe-group", parse_send_spoe_group },
{ /* END */ },
}
};
INITCALL1(STG_REGISTER, http_req_keywords_register, &http_req_action_kws);
static struct action_kw_list http_res_action_kws = { { }, {
{ "send-spoe-group", parse_send_spoe_group },
{ /* END */ },
}
};
INITCALL1(STG_REGISTER, http_res_keywords_register, &http_res_action_kws);
static struct sample_fetch_kw_list smp_kws = {ILH, {
{ "spoe.engine-id", smp_fetch_spoe_engine_id, 0, NULL, SMP_T_STR, SMP_USE_INTRN},
{},
}};
INITCALL1(STG_REGISTER, sample_register_fetches, &smp_kws);
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