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haproxy/src/flt_spoe.c
Willy Tarreau a1d0e58b06 BUILD: spoe: fix build warning on older gcc around sub-struct initialization 
gcc-4.8 is unhappy with the cfg_file initialization:

  src/flt_spoe.c: In function 'parse_spoe_flt':
  src/flt_spoe.c:2202:9: warning: missing braces around initializer [-Wmissing-braces]
    struct cfgfile      cfg_file = {0};
         ^
  src/flt_spoe.c:2202:9: warning: (near initialization for 'cfg_file.list') [-Wmissing-braces]

This is due to the embedded list member. Initializing it to empty like
we do almost everywhere else makes it happy. No backport is needed as
this was changed in 3.1-dev5 only.
2024-10-23 15:12:59 +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 = { };
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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