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3bce791019
cups/cups-avahi-5-services.patch
Tim Waugh e462076212 Updated avahi support to register sub-types.
2011-08-08 18:10:45 +01:00

1179 lines
33 KiB
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diff --git a/cgi-bin/admin.c b/cgi-bin/admin.c
index 99b8e7b..2688eff 100644
--- a/cgi-bin/admin.c
+++ b/cgi-bin/admin.c
@@ -1643,7 +1643,7 @@ do_config_server(http_t *http) /* I - HTTP connection */
else
local_protocols[0] = '\0';
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
if (cgiGetVariable("BROWSE_LOCAL_DNSSD"))
{
if (local_protocols[0])
@@ -1651,7 +1651,7 @@ do_config_server(http_t *http) /* I - HTTP connection */
else
strcat(local_protocols, "dnssd");
}
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
#ifdef HAVE_LDAP
if (cgiGetVariable("BROWSE_LOCAL_LDAP"))
@@ -2718,9 +2718,9 @@ do_menu(http_t *http) /* I - HTTP connection */
#endif /* HAVE_GSSAPI */
cgiSetVariable("KERBEROS", "");
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
cgiSetVariable("HAVE_DNSSD", "1");
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
#ifdef HAVE_LDAP
cgiSetVariable("HAVE_LDAP", "1");
diff --git a/scheduler/client.c b/scheduler/client.c
index e4c9b01..984dcc5 100644
--- a/scheduler/client.c
+++ b/scheduler/client.c
@@ -4987,7 +4987,7 @@ valid_host(cupsd_client_t *con) /* I - Client connection */
!strncmp(host, "[::1]:", 6));
}
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
/*
* Check if the hostname is something.local (Bonjour); if so, allow it.
*/
@@ -4996,7 +4996,7 @@ valid_host(cupsd_client_t *con) /* I - Client connection */
(!_cups_strcasecmp(end, ".local") || !_cups_strncasecmp(end, ".local:", 7) ||
!_cups_strcasecmp(end, ".local.") || !_cups_strncasecmp(end, ".local.:", 8)))
return (1);
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
/*
* Check if the hostname is an IP address...
diff --git a/scheduler/conf.c b/scheduler/conf.c
index badc630..c1edd39 100644
--- a/scheduler/conf.c
+++ b/scheduler/conf.c
@@ -648,7 +648,7 @@ cupsdReadConfiguration(void)
Browsing = CUPS_DEFAULT_BROWSING;
DefaultShared = CUPS_DEFAULT_DEFAULT_SHARED;
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
cupsdSetString(&DNSSDRegType, "_ipp._tcp,_cups");
#endif /* HAVE_DNSSD */
diff --git a/scheduler/dirsvc.c b/scheduler/dirsvc.c
index eb3c862..48dcef9 100644
--- a/scheduler/dirsvc.c
+++ b/scheduler/dirsvc.c
@@ -27,6 +27,7 @@
* ldap_connect() - Start new LDAP connection
* ldap_reconnect() - Reconnect to LDAP Server
* ldap_disconnect() - Disconnect from LDAP Server
+ * cupsdStartAvahiClient() - Start an Avahi client if needed
* cupsdStartBrowsing() - Start sending and receiving broadcast
* information.
* cupsdStartPolling() - Start polling servers as needed.
@@ -45,6 +46,8 @@
* printer.
* dnssdPackTxtRecord() - Pack an array of key/value pairs into the TXT
* record format.
+ * avahiPackTxtRecord() - Pack an array of key/value pairs into an
+ * AvahiStringList.
* dnssdRegisterCallback() - DNSServiceRegister callback.
* dnssdRegisterPrinter() - Start sending broadcast information for a
* printer or update the broadcast contents.
@@ -83,6 +86,7 @@
*/
#include "cupsd.h"
+#include <assert.h>
#include <grp.h>
#ifdef HAVE_DNSSD
@@ -97,6 +101,17 @@
# endif /* HAVE_SYSTEMCONFIGURATION */
# endif /* __APPLE__ */
#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+# include <avahi-common/domain.h>
+#endif /* HAVE_AVAHI */
+
+
+#ifdef HAVE_DNSSD
+typedef char *cupsd_txt_record_t;
+#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+typedef AvahiStringList *cupsd_txt_record_t;
+#endif /* HAVE_AVAHI */
/*
@@ -159,27 +174,39 @@ static void update_polling(void);
static void update_smb(int onoff);
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+static cupsd_txt_record_t dnssdBuildTxtRecord(int *txt_len, cupsd_printer_t *p,
+ int for_lpd);
+static int dnssdComparePrinters(cupsd_printer_t *a, cupsd_printer_t *b);
+static void dnssdDeregisterPrinter(cupsd_printer_t *p);
+static void dnssdRegisterPrinter(cupsd_printer_t *p);
+static void dnssdStop(void);
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+
#ifdef HAVE_DNSSD
# ifdef HAVE_COREFOUNDATION
static void dnssdAddAlias(const void *key, const void *value,
void *context);
# endif /* HAVE_COREFOUNDATION */
-static char *dnssdBuildTxtRecord(int *txt_len, cupsd_printer_t *p,
- int for_lpd);
-static int dnssdComparePrinters(cupsd_printer_t *a, cupsd_printer_t *b);
-static void dnssdDeregisterPrinter(cupsd_printer_t *p);
-static char *dnssdPackTxtRecord(int *txt_len, char *keyvalue[][2],
- int count);
static void dnssdRegisterCallback(DNSServiceRef sdRef,
DNSServiceFlags flags,
DNSServiceErrorType errorCode,
const char *name, const char *regtype,
const char *domain, void *context);
-static void dnssdRegisterPrinter(cupsd_printer_t *p);
-static void dnssdStop(void);
static void dnssdUpdate(void);
#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+static AvahiStringList *avahiPackTxtRecord(char *keyvalue[][2],
+ int count);
+static void avahi_entry_group_cb (AvahiEntryGroup *group,
+ AvahiEntryGroupState state,
+ void *userdata);
+static void avahi_client_cb (AvahiClient *client,
+ AvahiClientState state,
+ void *userdata);
+#endif /* HAVE_AVAHI */
+
#ifdef HAVE_LDAP
static const char * const ldap_attrs[] =/* CUPS LDAP attributes */
{
@@ -283,10 +310,10 @@ cupsdDeregisterPrinter(
ldap_dereg_printer(p);
#endif /* HAVE_LDAP */
-#ifdef HAVE_DNSSD
- if (removeit && (BrowseLocalProtocols & BROWSE_DNSSD) && DNSSDRef)
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+ if (removeit && (BrowseLocalProtocols & BROWSE_DNSSD))
dnssdDeregisterPrinter(p);
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
}
@@ -702,10 +729,10 @@ cupsdRegisterPrinter(cupsd_printer_t *p)/* I - Printer */
slpRegisterPrinter(p); */
#endif /* HAVE_LIBSLP */
-#ifdef HAVE_DNSSD
- if ((BrowseLocalProtocols & BROWSE_DNSSD) && DNSSDRef)
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+ if ((BrowseLocalProtocols & BROWSE_DNSSD))
dnssdRegisterPrinter(p);
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
}
@@ -1419,6 +1446,27 @@ ldap_disconnect(LDAP *ld) /* I - LDAP handle */
#endif /* HAVE_LDAP */
+#ifdef HAVE_AVAHI
+/*
+ * 'cupsdStartAvahiClient()' - Start an Avahi client if needed
+ */
+
+void
+cupsdStartAvahiClient(void)
+{
+ if (!AvahiCupsClient && !AvahiCupsClientConnecting)
+ {
+ if (!AvahiCupsPollHandle)
+ AvahiCupsPollHandle = avahi_cups_poll_new ();
+
+ if (AvahiCupsPollHandle)
+ avahi_client_new (avahi_cups_poll_get (AvahiCupsPollHandle),
+ AVAHI_CLIENT_NO_FAIL, avahi_client_cb, NULL, NULL);
+ }
+}
+#endif /* HAVE_AVAHI */
+
+
/*
* 'cupsdStartBrowsing()' - Start sending and receiving broadcast information.
*/
@@ -1542,13 +1590,16 @@ cupsdStartBrowsing(void)
else
BrowseSocket = -1;
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
if ((BrowseLocalProtocols | BrowseRemoteProtocols) & BROWSE_DNSSD)
{
+#ifdef HAVE_DNSSD
DNSServiceErrorType error; /* Error from service creation */
+#endif /* HAVE_DNSSD */
cupsd_listener_t *lis; /* Current listening socket */
+#ifdef HAVE_DNSSD
/*
* First create a "master" connection for all registrations...
*/
@@ -1573,6 +1624,7 @@ cupsdStartBrowsing(void)
fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
cupsdAddSelect(fd, (cupsd_selfunc_t)dnssdUpdate, NULL, NULL);
+#endif /* HAVE_DNSSD */
/*
* Then get the port we use for registrations. If we are not listening
@@ -1606,9 +1658,16 @@ cupsdStartBrowsing(void)
*/
cupsdUpdateDNSSDName();
+
+#ifdef HAVE_AVAHI
+ cupsdStartAvahiClient ();
+#endif /* HAVE_AVAHI */
+
+#ifdef HAVE_DNSSD
}
- }
#endif /* HAVE_DNSSD */
+ }
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
#ifdef HAVE_LIBSLP
if ((BrowseLocalProtocols | BrowseRemoteProtocols) & BROWSE_SLP)
@@ -1834,10 +1893,10 @@ cupsdStopBrowsing(void)
BrowseSocket = -1;
}
-#ifdef HAVE_DNSSD
- if ((BrowseLocalProtocols & BROWSE_DNSSD) && DNSSDRef)
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
+ if ((BrowseLocalProtocols & BROWSE_DNSSD))
dnssdStop();
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
#ifdef HAVE_LIBSLP
if (((BrowseLocalProtocols | BrowseRemoteProtocols) & BROWSE_SLP) &&
@@ -1902,7 +1961,7 @@ cupsdStopPolling(void)
}
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
/*
* 'cupsdUpdateDNSSDName()' - Update the computer name we use for browsing...
*/
@@ -1910,8 +1969,14 @@ cupsdStopPolling(void)
void
cupsdUpdateDNSSDName(void)
{
+#ifdef HAVE_DNSSD
DNSServiceErrorType error; /* Error from service creation */
char webif[1024]; /* Web interface share name */
+#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+ int ret; /* Error from service creation */
+ char webif[AVAHI_LABEL_MAX]; /* Web interface share name */
+#endif /* HAVE_AVAHI */
# ifdef HAVE_SYSTEMCONFIGURATION
SCDynamicStoreRef sc; /* Context for dynamic store */
CFDictionaryRef btmm; /* Back-to-My-Mac domains */
@@ -2042,6 +2107,7 @@ cupsdUpdateDNSSDName(void)
else
strlcpy(webif, "CUPS Web Interface", sizeof(webif));
+#ifdef HAVE_DNSSD
if (WebIFRef)
DNSServiceRefDeallocate(WebIFRef);
@@ -2054,9 +2120,45 @@ cupsdUpdateDNSSDName(void)
NULL)) != kDNSServiceErr_NoError)
cupsdLogMessage(CUPSD_LOG_ERROR,
"DNS-SD web interface registration failed: %d", error);
+#endif /* HAVE_DNSSD */
+
+#ifdef HAVE_AVAHI
+ if (!AvahiCupsClient)
+ /*
+ * Client not yet running.
+ */
+ return;
+
+ if (AvahiWebIFGroup)
+ avahi_entry_group_reset (AvahiWebIFGroup);
+ else
+ AvahiWebIFGroup = avahi_entry_group_new (AvahiCupsClient,
+ avahi_entry_group_cb,
+ NULL);
+
+ if (AvahiWebIFGroup)
+ {
+ ret = avahi_entry_group_add_service (AvahiWebIFGroup,
+ AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ 0, /* flags */
+ webif, /* name */
+ "_http._tcp", /* type */
+ NULL, /* domain */
+ NULL, /* host */
+ DNSSDPort, /* port */
+ "path=/", NULL);
+ if (ret == 0)
+ ret = avahi_entry_group_commit (AvahiWebIFGroup);
+
+ if (ret != 0)
+ cupsdLogMessage (CUPSD_LOG_ERROR,
+ "Avahi web interface registration failed: %d", ret);
+ }
+#endif /* HAVE_AVAHI */
}
}
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
#ifdef HAVE_LDAP
@@ -2334,13 +2436,15 @@ dnssdAddAlias(const void *key, /* I - Key */
"Bad Back to My Mac domain in dynamic store!");
}
# endif /* HAVE_COREFOUNDATION */
+#endif /* HAVE_DNSSD */
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
/*
* 'dnssdBuildTxtRecord()' - Build a TXT record from printer info.
*/
-static char * /* O - TXT record */
+static cupsd_txt_record_t /* O - TXT record */
dnssdBuildTxtRecord(
int *txt_len, /* O - TXT record length */
cupsd_printer_t *p, /* I - Printer information */
@@ -2379,7 +2483,12 @@ dnssdBuildTxtRecord(
keyvalue[i ][0] = "ty";
keyvalue[i++][1] = p->make_model ? p->make_model : "Unknown";
- snprintf(admin_hostname, sizeof(admin_hostname), "%s.local.", DNSSDHostName);
+ snprintf(admin_hostname, sizeof(admin_hostname),
+ "%s.local"
+#ifdef HAVE_DNSSD
+ "." /* terminating dot no good for Avahi */
+#endif /* HAVE_DNSSD */
+ , DNSSDHostName);
httpAssembleURIf(HTTP_URI_CODING_ALL, adminurl_str, sizeof(adminurl_str),
"http", NULL, admin_hostname, DNSSDPort, "/%s/%s",
(p->type & CUPS_PRINTER_CLASS) ? "classes" : "printers",
@@ -2462,7 +2571,12 @@ dnssdBuildTxtRecord(
* Then pack them into a proper txt record...
*/
+#ifdef HAVE_DNSSD
return (dnssdPackTxtRecord(txt_len, keyvalue, i));
+#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+ return (avahiPackTxtRecord(keyvalue, i));
+#endif /* HAVE_AVAHI */
}
@@ -2474,7 +2588,16 @@ static int /* O - Result of comparison */
dnssdComparePrinters(cupsd_printer_t *a,/* I - First printer */
cupsd_printer_t *b)/* I - Second printer */
{
- return (_cups_strcasecmp(a->reg_name, b->reg_name));
+ if (!a->reg_name)
+ if (!b->reg_name)
+ return 0;
+ else
+ return -1;
+ else
+ if (!b->reg_name)
+ return 1;
+ else
+ return (_cups_strcasecmp(a->reg_name, b->reg_name));
}
@@ -2489,6 +2612,10 @@ dnssdDeregisterPrinter(
{
cupsdLogMessage(CUPSD_LOG_DEBUG2, "dnssdDeregisterPrinter(%s)", p->name);
+#ifdef HAVE_DNSSD
+ if (!DNSSDRef)
+ return;
+
/*
* Closing the socket deregisters the service
*/
@@ -2524,6 +2651,24 @@ dnssdDeregisterPrinter(
free(p->printer_txt);
p->printer_txt = NULL;
}
+#endif /* HAVE_DNSSD */
+
+#ifdef HAVE_AVAHI
+ if (p->avahi_group)
+ {
+ avahi_entry_group_reset (p->avahi_group);
+ avahi_entry_group_free (p->avahi_group);
+ p->avahi_group = NULL;
+
+ if (p->ipp_txt)
+ avahi_string_list_free (p->ipp_txt);
+
+ if (p->printer_txt)
+ avahi_string_list_free (p->printer_txt);
+
+ p->ipp_txt = p->printer_txt = NULL;
+ }
+#endif /* HAVE_AVAHI */
/*
* Remove the printer from the array of DNS-SD printers, then clear the
@@ -2533,8 +2678,10 @@ dnssdDeregisterPrinter(
cupsArrayRemove(DNSSDPrinters, p);
cupsdClearString(&p->reg_name);
}
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+#ifdef HAVE_DNSSD
/*
* 'dnssdPackTxtRecord()' - Pack an array of key/value pairs into the
* TXT record format.
@@ -2644,8 +2791,10 @@ dnssdRegisterCallback(
LastEvent |= CUPSD_EVENT_PRINTER_MODIFIED;
}
}
+#endif /* HAVE_DNSSD */
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
/*
* 'dnssdRegisterPrinter()' - Start sending broadcast information for a printer
* or update the broadcast contents.
@@ -2654,20 +2803,40 @@ dnssdRegisterCallback(
static void
dnssdRegisterPrinter(cupsd_printer_t *p)/* I - Printer */
{
+#ifdef HAVE_DNSSD
DNSServiceErrorType se; /* dnssd errors */
char *ipp_txt, /* IPP TXT record buffer */
*printer_txt, /* LPD TXT record buffer */
- name[1024], /* Service name */
- *nameptr; /* Pointer into name */
+ name[1024]; /* Service name */
int ipp_len, /* IPP TXT record length */
printer_len, /* LPD TXT record length */
printer_port; /* LPD port number */
+#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+ int ret; /* Error code */
+ AvahiStringList *ipp_txt, /* IPP TXT record */
+ *printer_txt; /* LPD TXT record */
+ char name[AVAHI_LABEL_MAX], /* Service name */
+ fullsubtype[AVAHI_LABEL_MAX]; /* Full subtype */
+ char *regtype_copy, /* Writeable copy of reg type */
+ *subtype, /* Current service sub type */
+ *nextsubtype; /* Next service sub type */
+#endif /* HAVE_AVAHI */
+ char *nameptr; /* Pointer into name */
const char *regtype; /* Registration type */
+#ifdef HAVE_DNSSD
+ if (!DNSSDRef)
+ return;
+
cupsdLogMessage(CUPSD_LOG_DEBUG2, "dnssdRegisterPrinter(%s) %s", p->name,
!p->ipp_ref ? "new" : "update");
-
+#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+ cupsdLogMessage(CUPSD_LOG_DEBUG2, "dnssdRegisterPrinter(%s) %s", p->name,
+ !p->avahi_group ? "new" : "update");
+#endif /* HAVE_AVAHI */
/*
* If per-printer sharing was just disabled make sure we're not
* registered before returning.
@@ -2686,12 +2855,36 @@ dnssdRegisterPrinter(cupsd_printer_t *p)/* I - Printer */
if (p->info && strlen(p->info) > 0)
{
if (DNSSDComputerName)
- snprintf(name, sizeof(name), "%s @ %s", p->info, DNSSDComputerName);
+ {
+ /*
+ * Make sure there is room for at least 15 characters of
+ * DNSSDComputerName.
+ */
+
+ assert(sizeof(name) >= 15 + 4);
+ nameptr = name + strlcpy(name, p->info,
+ sizeof(name) - 4 -
+ strnlen(DNSSDComputerName, 15));
+ nameptr += strlcpy(nameptr, " @ ", sizeof(name) - (nameptr - name));
+ strlcpy(nameptr, DNSSDComputerName, sizeof(name) - (nameptr - name));
+ }
else
strlcpy(name, p->info, sizeof(name));
}
else if (DNSSDComputerName)
- snprintf(name, sizeof(name), "%s @ %s", p->name, DNSSDComputerName);
+ {
+ /*
+ * Make sure there is room for at least 15 characters of
+ * DNSSDComputerName.
+ */
+
+ assert(sizeof(name) >= 15 + 4);
+ nameptr = name + strlcpy(name, p->info,
+ sizeof(name) - 4 -
+ strnlen(DNSSDComputerName, 15));
+ nameptr += strlcpy(nameptr, " @ ", sizeof(name) - (nameptr - name));
+ strlcpy(nameptr, DNSSDComputerName, sizeof(name) - (nameptr - name));
+ }
else
strlcpy(name, p->name, sizeof(name));
@@ -2712,6 +2905,7 @@ dnssdRegisterPrinter(cupsd_printer_t *p)/* I - Printer */
* Register IPP and (optionally) LPD...
*/
+#ifdef HAVE_DNSSD
ipp_len = 0; /* anti-compiler-warning-code */
ipp_txt = dnssdBuildTxtRecord(&ipp_len, p, 0);
@@ -2884,6 +3078,209 @@ dnssdRegisterPrinter(cupsd_printer_t *p)/* I - Printer */
if (printer_txt)
free(printer_txt);
+#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+ if (!AvahiCupsClient)
+ /*
+ * Client not running yet. The client callback will call us again later.
+ */
+ return;
+
+ ipp_txt = dnssdBuildTxtRecord(NULL, p, 0);
+ printer_txt = dnssdBuildTxtRecord(NULL, p, 1);
+ regtype = (p->type & CUPS_PRINTER_FAX) ? "_fax-ipp._tcp" : DNSSDRegType;
+
+ if (p->avahi_group && p->ipp_txt && ipp_txt &&
+ !avahi_string_list_equal (p->ipp_txt, ipp_txt))
+ {
+ /*
+ * Update the existing registration...
+ */
+
+ avahi_string_list_free (p->ipp_txt);
+
+ if (p->printer_txt)
+ avahi_string_list_free (p->printer_txt);
+
+ /*
+ * Update the service group entry.
+ */
+
+ regtype_copy = strdup (regtype);
+ subtype = strchr (regtype_copy, ',');
+ if (subtype)
+ *subtype = '\0';
+
+ cupsdLogMessage (CUPSD_LOG_DEBUG,
+ "Updating TXT record for %s (%s)", name, regtype_copy);
+ ret = avahi_entry_group_update_service_txt_strlst (p->avahi_group,
+ AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ 0, name,
+ regtype_copy,
+ NULL, ipp_txt);
+ free (regtype_copy);
+
+ if (ret < 0)
+ goto update_failed;
+
+ p->ipp_txt = ipp_txt;
+ ipp_txt = NULL;
+
+ if (BrowseLocalProtocols & BROWSE_LPD)
+ {
+ ret = avahi_entry_group_update_service_txt_strlst (p->avahi_group,
+ AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ 0, name,
+ "_printer._tcp", NULL,
+ printer_txt);
+ if (ret < 0)
+ goto update_failed;
+
+ p->printer_txt = printer_txt;
+ printer_txt = NULL;
+ }
+
+ ret = avahi_entry_group_commit (p->avahi_group);
+ if (ret < 0)
+ {
+ update_failed:
+ cupsdLogMessage (CUPSD_LOG_ERROR,
+ "Failed to update TXT record for %s: %d",
+ name, ret);
+ avahi_entry_group_reset (p->avahi_group);
+ avahi_entry_group_free (p->avahi_group);
+ p->avahi_group = NULL;
+ ipp_txt = p->ipp_txt;
+ p->ipp_txt = NULL;
+ }
+ }
+
+ if (!p->avahi_group)
+ {
+ /*
+ * Initial registration. Use the _fax subtype for fax queues...
+ */
+
+ p->avahi_group = avahi_entry_group_new (AvahiCupsClient,
+ avahi_entry_group_cb,
+ p);
+
+ cupsdLogMessage(CUPSD_LOG_DEBUG,
+ "Registering Avahi printer %s with name \"%s\" and "
+ "type \"%s\"", p->name, name, regtype);
+
+ if (!p->avahi_group)
+ {
+ ret = 0;
+ goto add_failed;
+ }
+
+ /*
+ * Add each service type (DNSSDRegType may contain several,
+ * separated by commas).
+ */
+
+ subtype = regtype_copy = strdup (regtype);
+ while (subtype && *subtype)
+ {
+ nextsubtype = strchr (subtype, ',');
+ if (nextsubtype)
+ *nextsubtype++ = '\0';
+
+ if (subtype == regtype_copy)
+ {
+ /*
+ * Main type entry.
+ */
+
+ cupsdLogMessage (CUPSD_LOG_DEBUG,
+ "Adding TXT record for %s (%s)", name, regtype_copy);
+ ret = avahi_entry_group_add_service_strlst (p->avahi_group,
+ AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ 0, name, regtype_copy,
+ NULL, NULL,
+ DNSSDPort,
+ ipp_txt);
+ }
+ else
+ {
+ /*
+ * Sub-type entry.
+ */
+
+ snprintf (fullsubtype, sizeof(fullsubtype),
+ "%s._sub.%s", subtype, regtype_copy);
+ cupsdLogMessage (CUPSD_LOG_DEBUG,
+ "Adding TXT record for %s (%s)", name, fullsubtype);
+ ret = avahi_entry_group_add_service_subtype (p->avahi_group,
+ AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ 0, name,
+ regtype_copy,
+ NULL, fullsubtype);
+ }
+
+ if (ret < 0)
+ {
+ free (regtype_copy);
+ goto add_failed;
+ }
+
+ subtype = nextsubtype;
+ }
+
+ free (regtype_copy);
+ p->ipp_txt = ipp_txt;
+ ipp_txt = NULL;
+
+ if (BrowseLocalProtocols & BROWSE_LPD)
+ {
+ cupsdLogMessage(CUPSD_LOG_DEBUG,
+ "Registering Avahi printer %s with name \"%s\" and "
+ "type \"_printer._tcp\"", p->name, name);
+
+ ret = avahi_entry_group_add_service_strlst (p->avahi_group,
+ AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ 0, name,
+ "_printer._tcp", NULL, NULL,
+ 515,
+ printer_txt);
+ if (ret < 0)
+ goto add_failed;
+
+ p->printer_txt = printer_txt;
+ printer_txt = NULL;
+ }
+
+ ret = avahi_entry_group_commit (p->avahi_group);
+
+ if (ret < 0)
+ {
+ add_failed:
+ cupsdLogMessage (CUPSD_LOG_ERROR,
+ "Failed to add Avahi entry for %s: %d",
+ name, ret);
+ if (p->avahi_group)
+ {
+ avahi_entry_group_reset (p->avahi_group);
+ avahi_entry_group_free (p->avahi_group);
+ p->avahi_group = NULL;
+ }
+ ipp_txt = p->ipp_txt;
+ p->ipp_txt = NULL;
+ }
+ }
+
+ if (ipp_txt)
+ avahi_string_list_free (ipp_txt);
+
+ if (printer_txt)
+ avahi_string_list_free (printer_txt);
+#endif /* HAVE_AVAHI */
}
@@ -2896,6 +3293,10 @@ dnssdStop(void)
{
cupsd_printer_t *p; /* Current printer */
+#ifdef HAVE_DNSSD
+ if (!DNSSDRef)
+ return;
+#endif /* HAVE_DNSSD */
/*
* De-register the individual printers
@@ -2906,6 +3307,7 @@ dnssdStop(void)
p = (cupsd_printer_t *)cupsArrayNext(Printers))
dnssdDeregisterPrinter(p);
+#ifdef HAVE_DNSSD
/*
* Shutdown the rest of the service refs...
*/
@@ -2926,14 +3328,17 @@ dnssdStop(void)
DNSServiceRefDeallocate(DNSSDRef);
DNSSDRef = NULL;
+#endif /* HAVE_DNSSD */
cupsArrayDelete(DNSSDPrinters);
DNSSDPrinters = NULL;
DNSSDPort = 0;
}
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+#ifdef HAVE_DNSSD
/*
* 'dnssdUpdate()' - Handle DNS-SD queries.
*/
@@ -2955,6 +3360,147 @@ dnssdUpdate(void)
#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+/*
+ * 'avahiPackTxtRecord()' - Pack an array of key/value pairs into an
+ * AvahiStringList.
+ */
+
+static AvahiStringList * /* O - new string list */
+avahiPackTxtRecord(char *keyvalue[][2], /* I - Table of key value pairs */
+ int count) /* I - Number of items in table */
+{
+ AvahiStringList *strlst = NULL;
+ char **elements;
+ size_t len;
+ int i = 0;
+
+ elements = malloc ((1 + count) * sizeof (char *));
+ if (!elements)
+ goto cleanup;
+
+ for (i = 0; i < count; i++)
+ {
+ len = (1 + strlen (keyvalue[i][0]) +
+ (keyvalue[i][1] ? 1 + strlen (keyvalue[i][1]) : 1));
+ elements[i] = malloc (len * sizeof (char));
+ if (!elements[i])
+ goto cleanup;
+
+ snprintf (elements[i], len, "%s=%s", keyvalue[i][0], keyvalue[i][1]);
+ }
+
+ strlst = avahi_string_list_new_from_array ((const char **) elements, count);
+
+cleanup:
+ while (--i >= 0)
+ free (elements[i]);
+
+ free (elements);
+ return (strlst);
+}
+
+
+/*
+ * 'avahi_entry_group_cb()' - Avahi entry group callback function.
+ */
+static void
+avahi_entry_group_cb (AvahiEntryGroup *group,
+ AvahiEntryGroupState state,
+ void *userdata)
+{
+ char *name;
+
+ if (userdata)
+ name = ((cupsd_printer_t *) userdata)->reg_name;
+ else
+ name = "CUPS web interface";
+
+ switch (state)
+ {
+ case AVAHI_ENTRY_GROUP_UNCOMMITED:
+ case AVAHI_ENTRY_GROUP_REGISTERING:
+ break;
+
+ case AVAHI_ENTRY_GROUP_ESTABLISHED:
+ cupsdLogMessage (CUPSD_LOG_DEBUG,
+ "Avahi entry group established for %s", name);
+ break;
+
+ default:
+ cupsdLogMessage (CUPSD_LOG_DEBUG,
+ "Avahi entry group %s has state %d",
+ name, state);
+ break;
+ }
+}
+
+
+/*
+ * 'avahi_client_cb()' - Avahi client callback function.
+ */
+static void
+avahi_client_cb (AvahiClient *client,
+ AvahiClientState state,
+ void *userdata)
+{
+ cupsd_printer_t *printer;
+ switch (state)
+ {
+ case AVAHI_CLIENT_S_RUNNING:
+ /*
+ * Avahi client started successfully.
+ */
+ AvahiCupsClient = client;
+ AvahiCupsClientConnecting = 0;
+ cupsdLogMessage (CUPSD_LOG_DEBUG, "Avahi client started");
+
+ cupsdUpdateDNSSDName ();
+
+ for (printer = (cupsd_printer_t *)cupsArrayFirst(Printers);
+ printer;
+ printer = (cupsd_printer_t *)cupsArrayNext(Printers))
+ if (Browsing && (BrowseLocalProtocols & BROWSE_DNSSD) &&
+ (!(printer->type & (CUPS_PRINTER_REMOTE | CUPS_PRINTER_IMPLICIT |
+ CUPS_PRINTER_SCANNER))) && printer->shared)
+ dnssdRegisterPrinter (printer);
+
+ break;
+
+ case AVAHI_CLIENT_CONNECTING:
+ /*
+ * No Avahi daemon, client is waiting.
+ */
+ AvahiCupsClientConnecting = 1;
+ cupsdLogMessage (CUPSD_LOG_DEBUG, "Avahi client connecting");
+ break;
+
+ case AVAHI_CLIENT_FAILURE:
+ /*
+ * Avahi client failed, close it to allow a clean restart.
+ */
+ cupsdLogMessage (CUPSD_LOG_ERROR,
+ "Avahi client failed, "
+ "closing client to allow a clean restart");
+
+ for (printer = (cupsd_printer_t *)cupsArrayFirst(Printers);
+ printer;
+ printer = (cupsd_printer_t *)cupsArrayNext(Printers))
+ dnssdDeregisterPrinter (printer);
+
+ avahi_client_free(client);
+ AvahiCupsClientConnecting = 0;
+ AvahiCupsClient = NULL;
+
+ break;
+
+ default:
+ cupsdLogMessage (CUPSD_LOG_DEBUG, "Avahi client state: %d", state);
+ }
+}
+#endif /* HAVE_AVAHI */
+
+
/*
* 'get_auth_info_required()' - Get the auth-info-required value to advertise.
*/
diff --git a/scheduler/dirsvc.h b/scheduler/dirsvc.h
index 99079bd..d53a179 100644
--- a/scheduler/dirsvc.h
+++ b/scheduler/dirsvc.h
@@ -31,6 +31,10 @@
# endif /* HAVE_LDAP_SSL_H */
#endif /* HAVE_LDAP */
+#ifdef HAVE_AVAHI
+# include <avahi-client/publish.h>
+#endif /* HAVE_AVAHI */
+
/*
* Browse protocols...
*/
@@ -131,19 +135,22 @@ VAR int PollPipe VALUE(0);
VAR cupsd_statbuf_t *PollStatusBuffer VALUE(NULL);
/* Status buffer for pollers */
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
VAR char *DNSSDComputerName VALUE(NULL),
/* Computer/server name */
*DNSSDHostName VALUE(NULL),
/* Hostname */
*DNSSDRegType VALUE(NULL);
/* Bonjour registration type */
-VAR cups_array_t *DNSSDAlias VALUE(NULL);
- /* List of dynamic ServerAlias's */
VAR int DNSSDPort VALUE(0);
/* Port number to register */
VAR cups_array_t *DNSSDPrinters VALUE(NULL);
/* Printers we have registered */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+
+#ifdef HAVE_DNSSD
+VAR cups_array_t *DNSSDAlias VALUE(NULL);
+ /* List of dynamic ServerAlias's */
VAR DNSServiceRef DNSSDRef VALUE(NULL),
/* Master DNS-SD service reference */
WebIFRef VALUE(NULL),
@@ -152,6 +159,17 @@ VAR DNSServiceRef DNSSDRef VALUE(NULL),
/* Remote printer browse reference */
#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+VAR AvahiCupsPoll *AvahiCupsPollHandle VALUE(NULL);
+ /* AvahiCupsPoll object */
+VAR AvahiClient *AvahiCupsClient VALUE(NULL);
+ /* AvahiClient object */
+VAR int AvahiCupsClientConnecting VALUE(0);
+ /* Is AvahiClient object connecting? */
+VAR AvahiEntryGroup *AvahiWebIFGroup VALUE(NULL);
+ /* Web interface entry group */
+#endif /* HAVE_AVAHI */
+
#ifdef HAVE_LIBSLP
VAR SLPHandle BrowseSLPHandle VALUE(NULL);
/* SLP API handle */
@@ -195,13 +213,14 @@ extern void cupsdRegisterPrinter(cupsd_printer_t *p);
extern void cupsdRestartPolling(void);
extern void cupsdSaveRemoteCache(void);
extern void cupsdSendBrowseList(void);
+extern void cupsdStartAvahiClient(void);
extern void cupsdStartBrowsing(void);
extern void cupsdStartPolling(void);
extern void cupsdStopBrowsing(void);
extern void cupsdStopPolling(void);
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
extern void cupsdUpdateDNSSDName(void);
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
#ifdef HAVE_LDAP
extern void cupsdUpdateLDAPBrowse(void);
#endif /* HAVE_LDAP */
diff --git a/scheduler/ipp.c b/scheduler/ipp.c
index a048baa..9a3ab11 100644
--- a/scheduler/ipp.c
+++ b/scheduler/ipp.c
@@ -6087,7 +6087,7 @@ copy_printer_attrs(
ippAddDate(con->response, IPP_TAG_PRINTER, "printer-current-time",
ippTimeToDate(curtime));
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
if (!ra || cupsArrayFind(ra, "printer-dns-sd-name"))
{
if (printer->reg_name)
@@ -6097,7 +6097,7 @@ copy_printer_attrs(
ippAddInteger(con->response, IPP_TAG_PRINTER, IPP_TAG_NOVALUE,
"printer-dns-sd-name", 0);
}
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
if (!ra || cupsArrayFind(ra, "printer-error-policy"))
ippAddString(con->response, IPP_TAG_PRINTER, IPP_TAG_NAME,
diff --git a/scheduler/main.c b/scheduler/main.c
index 1e60572..6c210e6 100644
--- a/scheduler/main.c
+++ b/scheduler/main.c
@@ -120,6 +120,10 @@ main(int argc, /* I - Number of command-line args */
cupsd_listener_t *lis; /* Current listener */
time_t current_time, /* Current time */
activity, /* Client activity timer */
+#ifdef HAVE_AVAHI
+ avahi_client_time, /* Time for next Avahi client
+ check */
+#endif /* HAVE_AVAHI */
browse_time, /* Next browse send time */
senddoc_time, /* Send-Document time */
expire_time, /* Subscription expire time */
@@ -662,6 +666,9 @@ main(int argc, /* I - Number of command-line args */
*/
current_time = time(NULL);
+#ifdef HAVE_AVAHI
+ avahi_client_time = current_time;
+#endif /* HAVE_AVAHI */
browse_time = current_time;
event_time = current_time;
expire_time = current_time;
@@ -884,6 +891,16 @@ main(int argc, /* I - Number of command-line args */
tmo = cupsdNextTimeout (&tmo_delay);
if (tmo && tmo_delay == 0)
cupsdRunTimeout (tmo);
+
+ /*
+ * Try to restart the Avahi client every 10 seconds if needed...
+ */
+
+ if ((current_time - avahi_client_time) >= 10)
+ {
+ avahi_client_time = current_time;
+ cupsdStartAvahiClient();
+ }
#endif /* HAVE_AVAHI */
#ifndef __APPLE__
diff --git a/scheduler/printers.c b/scheduler/printers.c
index 4686c4c..fac7bbc 100644
--- a/scheduler/printers.c
+++ b/scheduler/printers.c
@@ -883,9 +883,9 @@ cupsdDeletePrinter(
cupsdClearString(&p->alert);
cupsdClearString(&p->alert_description);
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
cupsdClearString(&p->pdl);
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
cupsArrayDelete(p->filetypes);
@@ -3765,7 +3765,7 @@ add_printer_formats(cupsd_printer_t *p) /* I - Printer */
attr->values[i].string.text = _cupsStrAlloc(mimetype);
}
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
{
char pdl[1024]; /* Buffer to build pdl list */
mime_filter_t *filter; /* MIME filter looping var */
@@ -3821,7 +3821,7 @@ add_printer_formats(cupsd_printer_t *p) /* I - Printer */
cupsdSetString(&p->pdl, pdl);
}
-#endif /* HAVE_DNSSD */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
}
diff --git a/scheduler/printers.h b/scheduler/printers.h
index 1751578..fb04651 100644
--- a/scheduler/printers.h
+++ b/scheduler/printers.h
@@ -16,6 +16,9 @@
#ifdef HAVE_DNSSD
# include <dns_sd.h>
#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+# include "avahi.h"
+#endif /* HAVE_AVAHI */
#include <cups/pwg-private.h>
@@ -95,16 +98,23 @@ struct cupsd_printer_s
time_t marker_time; /* Last time marker attributes were updated */
_ppd_cache_t *pc; /* PPD cache and mapping data */
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
char *reg_name, /* Name used for service registration */
- *pdl, /* pdl value for TXT record */
- *ipp_txt, /* IPP TXT record contents */
+ *pdl; /* pdl value for TXT record */
+#endif /* defined(HAVE_DNSSD) || defined(HAVE_AVAHI) */
+#ifdef HAVE_DNSSD
+ char *ipp_txt, /* IPP TXT record contents */
*printer_txt; /* LPD TXT record contents */
int ipp_len, /* IPP TXT record length */
printer_len; /* LPD TXT record length */
DNSServiceRef ipp_ref, /* Reference for _ipp._tcp,_cups */
printer_ref; /* Reference for _printer._tcp */
#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+ AvahiStringList *ipp_txt, /* IPP TXT record */
+ *printer_txt; /* LPD TXT record */
+ AvahiEntryGroup *avahi_group; /* Avahi entry group */
+#endif /* HAVE_AVAHI */
};
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