I'm having issues compiling Tor after modifying it a bit.
In a file called control.c, I added code that refers to a struct called rend_service_t (which is located in rendservice.h). I included rendservice.h to the top of control.c, as it wasn't including it previously.
If I try using the Makefile included, I get this error:
control.c:2841: error: 'rend_service_t' undeclared (first use in this function)
I'm guessing that rendservice.c isn't getting included or isn't getting compiled first, so I check the directory and there isn't an object file for rendservice. I'm a bit confused by this since it is clearly being included.
What is causing this to happen?
I also tried editing the Makefile.am/.in so that rendservice.c/h comes before control.c/h, but it doesn't make any difference.
In control.c:
...
#include "rendservice.h"
...
static int
handle_control_addservice(control_connection_t *conn, uint32_t len,
const char *body)
{
smartlist_t *args;
rend_service_t *service;
...
In rendservice.c:
...
/** Represents a single hidden service running at this OP. */
typedef struct rend_service_t {
/* Fields specified in config file */
char *directory; /**< where in the filesystem it stores it */
smartlist_t *ports; /**< List of rend_service_port_config_t */
rend_auth_type_t auth_type; /**< Client authorization type or 0 if no client
* authorization is performed. */
smartlist_t *clients; /**< List of rend_authorized_client_t's of
* clients that may access our service. Can be NULL
* if no client authorization is performed. */
/* Other fields */
crypto_pk_env_t *private_key; /**< Permanent hidden-service key. */
char service_id[REND_SERVICE_ID_LEN_BASE32+1]; /**< Onion address without
* '.onion' */
char pk_digest[DIGEST_LEN]; /**< Hash of permanent hidden-service key. */
smartlist_t *intro_nodes; /**< List of rend_intro_point_t's we have,
* or are trying to establish. */
time_t intro_period_started; /**< Start of the current period to build
* introduction points. */
int n_intro_circuits_launched; /**< Count of intro circuits we have
* established in this period. */
rend_service_descriptor_t *desc; /**< Current hidden service descriptor. */
time_t desc_is_dirty; /**< Time at which changes to the hidden service
* descriptor content occurred, or 0 if it's
* up-to-date. */
time_t next_upload_time; /**< Scheduled next hidden service descriptor
* upload time. */
/** Map from digests of Diffie-Hellman values INTRODUCE2 to time_t of when
* they were received; used to prevent replays. */
digestmap_t *accepted_intros;
/** Time at which we last removed expired values from accepted_intros. */
time_t last_cleaned_accepted_intros;
} rend_service_t;
...
rend_service_t is a structure that's private to rendservice.c - it doesn't appear to be intended for use outside that .c file, and it's not declared in rendservice.h. (See the version of rendservice.c that I;m looking at here: https://doxygen.torproject.org/rendservice_8c_source.html).
So this isn't a header inclusion problem - the structure isn't delcared in the header at all.
You should ask a question about what you what you intended to use struct rend_service_t for.