Date: Wed, 16 Apr 2014 18:23:36 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r264549 - in head: sys/dev/iscsi usr.sbin/iscsid Message-ID: <201404161823.s3GINaN2059268@svn.freebsd.org>
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Author: trasz Date: Wed Apr 16 18:23:36 2014 New Revision: 264549 URL: http://svnweb.freebsd.org/changeset/base/264549 Log: Make it possible for the initiator side to operate in both proxy and normal mode; this makes it possible to compile with the former by default, but use it only when neccessary. That's especially important for the userland part. Sponsored by: The FreeBSD Foundation Modified: head/sys/dev/iscsi/iscsi.c head/sys/dev/iscsi/iscsi_ioctl.h head/usr.sbin/iscsid/iscsid.c head/usr.sbin/iscsid/iscsid.h head/usr.sbin/iscsid/pdu.c Modified: head/sys/dev/iscsi/iscsi.c ============================================================================== --- head/sys/dev/iscsi/iscsi.c Wed Apr 16 18:09:39 2014 (r264548) +++ head/sys/dev/iscsi/iscsi.c Wed Apr 16 18:23:36 2014 (r264549) @@ -1304,12 +1304,19 @@ iscsi_ioctl_daemon_handoff(struct iscsi_ ISCSI_SESSION_UNLOCK(is); -#ifndef ICL_KERNEL_PROXY - error = icl_conn_handoff(is->is_conn, handoff->idh_socket); - if (error != 0) { - sx_sunlock(&sc->sc_lock); - iscsi_session_terminate(is); - return (error); +#ifdef ICL_KERNEL_PROXY + if (handoff->idh_socket != 0) { +#endif + /* + * Handoff without using ICL proxy. + */ + error = icl_conn_handoff(is->is_conn, handoff->idh_socket); + if (error != 0) { + sx_sunlock(&sc->sc_lock); + iscsi_session_terminate(is); + return (error); + } +#ifdef ICL_KERNEL_PROXY } #endif @@ -1420,13 +1427,18 @@ iscsi_ioctl_daemon_connect(struct iscsi_ if (idc->idc_from_addrlen > 0) { error = getsockaddr(&from_sa, (void *)idc->idc_from_addr, idc->idc_from_addrlen); - if (error != 0) + if (error != 0) { + ISCSI_SESSION_WARN(is, + "getsockaddr failed with error %d", error); return (error); + } } else { from_sa = NULL; } error = getsockaddr(&to_sa, (void *)idc->idc_to_addr, idc->idc_to_addrlen); if (error != 0) { + ISCSI_SESSION_WARN(is, "getsockaddr failed with error %d", + error); free(from_sa, M_SONAME); return (error); } Modified: head/sys/dev/iscsi/iscsi_ioctl.h ============================================================================== --- head/sys/dev/iscsi/iscsi_ioctl.h Wed Apr 16 18:09:39 2014 (r264548) +++ head/sys/dev/iscsi/iscsi_ioctl.h Wed Apr 16 18:23:36 2014 (r264549) @@ -129,9 +129,9 @@ struct iscsi_daemon_fail { /* * When ICL_KERNEL_PROXY is not defined, the iscsid(8) is responsible - * for creating the socket, connecting, performing Login Phase using - * socked in the usual userspace way, and then passing the socket file - * descriptor to the kernel part using ISCSIDHANDOFF. + * for creating the socket, connecting, and performing Login Phase using + * the socket in the usual userspace way, and then passing the socket + * file descriptor to the kernel part using ISCSIDHANDOFF. * * When ICL_KERNEL_PROXY is defined, the iscsid(8) creates the session * using ISCSICONNECT, performs Login Phase using ISCSISEND/ISCSIRECEIVE @@ -162,7 +162,7 @@ struct iscsi_daemon_send { void *ids_spare2; size_t ids_data_segment_len; void *ids_data_segment; - int ids_spare[4]; + int ids_spare3[4]; }; struct iscsi_daemon_receive { @@ -172,7 +172,7 @@ struct iscsi_daemon_receive { void *idr_spare2; size_t idr_data_segment_len; void *idr_data_segment; - int idr_spare[4]; + int idr_spare3[4]; }; #define ISCSIDCONNECT _IOWR('I', 0x04, struct iscsi_daemon_connect) Modified: head/usr.sbin/iscsid/iscsid.c ============================================================================== --- head/usr.sbin/iscsid/iscsid.c Wed Apr 16 18:09:39 2014 (r264548) +++ head/usr.sbin/iscsid/iscsid.c Wed Apr 16 18:23:36 2014 (r264549) @@ -194,30 +194,32 @@ connection_new(unsigned int session_id, resolve_addr(conn, to_addr, &to_ai, false); #ifdef ICL_KERNEL_PROXY + if (conn->conn_conf.isc_iser) { + memset(&idc, 0, sizeof(idc)); + idc.idc_session_id = conn->conn_session_id; + if (conn->conn_conf.isc_iser) + idc.idc_iser = 1; + idc.idc_domain = to_ai->ai_family; + idc.idc_socktype = to_ai->ai_socktype; + idc.idc_protocol = to_ai->ai_protocol; + if (from_ai != NULL) { + idc.idc_from_addr = from_ai->ai_addr; + idc.idc_from_addrlen = from_ai->ai_addrlen; + } + idc.idc_to_addr = to_ai->ai_addr; + idc.idc_to_addrlen = to_ai->ai_addrlen; - memset(&idc, 0, sizeof(idc)); - idc.idc_session_id = conn->conn_session_id; - if (conn->conn_conf.isc_iser) - idc.idc_iser = 1; - idc.idc_domain = to_ai->ai_family; - idc.idc_socktype = to_ai->ai_socktype; - idc.idc_protocol = to_ai->ai_protocol; - if (from_ai != NULL) { - idc.idc_from_addr = from_ai->ai_addr; - idc.idc_from_addrlen = from_ai->ai_addrlen; - } - idc.idc_to_addr = to_ai->ai_addr; - idc.idc_to_addrlen = to_ai->ai_addrlen; + log_debugx("connecting to %s using ICL kernel proxy", to_addr); + error = ioctl(iscsi_fd, ISCSIDCONNECT, &idc); + if (error != 0) { + fail(conn, strerror(errno)); + log_err(1, "failed to connect to %s " + "using ICL kernel proxy: ISCSIDCONNECT", to_addr); + } - log_debugx("connecting to %s using ICL kernel proxy", to_addr); - error = ioctl(iscsi_fd, ISCSIDCONNECT, &idc); - if (error != 0) { - fail(conn, strerror(errno)); - log_err(1, "failed to connect to %s using ICL kernel proxy", - to_addr); + return (conn); } - -#else /* !ICL_KERNEL_PROXY */ +#endif /* ICL_KERNEL_PROXY */ if (conn->conn_conf.isc_iser) { fail(conn, "iSER not supported"); @@ -246,8 +248,6 @@ connection_new(unsigned int session_id, log_err(1, "failed to connect to %s", to_addr); } -#endif /* !ICL_KERNEL_PROXY */ - return (conn); } @@ -261,9 +261,7 @@ handoff(struct connection *conn) memset(&idh, 0, sizeof(idh)); idh.idh_session_id = conn->conn_session_id; -#ifndef ICL_KERNEL_PROXY idh.idh_socket = conn->conn_socket; -#endif strlcpy(idh.idh_target_alias, conn->conn_target_alias, sizeof(idh.idh_target_alias)); memcpy(idh.idh_isid, conn->conn_isid, sizeof(idh.idh_isid)); Modified: head/usr.sbin/iscsid/iscsid.h ============================================================================== --- head/usr.sbin/iscsid/iscsid.h Wed Apr 16 18:09:39 2014 (r264548) +++ head/usr.sbin/iscsid/iscsid.h Wed Apr 16 18:23:36 2014 (r264549) @@ -46,9 +46,7 @@ struct connection { int conn_iscsi_fd; -#ifndef ICL_KERNEL_PROXY int conn_socket; -#endif unsigned int conn_session_id; struct iscsi_session_conf conn_conf; char conn_target_alias[ISCSI_ADDR_LEN]; Modified: head/usr.sbin/iscsid/pdu.c ============================================================================== --- head/usr.sbin/iscsid/pdu.c Wed Apr 16 18:09:39 2014 (r264548) +++ head/usr.sbin/iscsid/pdu.c Wed Apr 16 18:23:36 2014 (r264549) @@ -101,13 +101,15 @@ pdu_new_response(struct pdu *request) #ifdef ICL_KERNEL_PROXY -void -pdu_receive(struct pdu *pdu) +static void +pdu_receive_proxy(struct pdu *pdu) { struct iscsi_daemon_receive *idr; size_t len; int error; + assert(pdu->pdu_connection->conn_conf.isc_iser != 0); + pdu->pdu_data = malloc(ISCSI_MAX_DATA_SEGMENT_LENGTH); if (pdu->pdu_data == NULL) log_err(1, "malloc"); @@ -136,12 +138,14 @@ pdu_receive(struct pdu *pdu) free(idr); } -void -pdu_send(struct pdu *pdu) +static void +pdu_send_proxy(struct pdu *pdu) { struct iscsi_daemon_send *ids; int error; + assert(pdu->pdu_connection->conn_conf.isc_iser != 0); + pdu_set_data_segment_length(pdu, pdu->pdu_data_len); ids = calloc(1, sizeof(*ids)); @@ -160,7 +164,7 @@ pdu_send(struct pdu *pdu) free(ids); } -#else /* !ICL_KERNEL_PROXY */ +#endif /* ICL_KERNEL_PROXY */ static size_t pdu_padding(const struct pdu *pdu) @@ -196,6 +200,13 @@ pdu_receive(struct pdu *pdu) size_t len, padding; char dummy[4]; +#ifdef ICL_KERNEL_PROXY + if (pdu->pdu_connection->conn_conf.isc_iser != 0) + return (pdu_receive_proxy(pdu)); +#endif + + assert(pdu->pdu_connection->conn_conf.isc_iser == 0); + pdu_read(pdu->pdu_connection->conn_socket, (char *)pdu->pdu_bhs, sizeof(*pdu->pdu_bhs)); @@ -237,6 +248,13 @@ pdu_send(struct pdu *pdu) struct iovec iov[3]; int iovcnt; +#ifdef ICL_KERNEL_PROXY + if (pdu->pdu_connection->conn_conf.isc_iser != 0) + return (pdu_send_proxy(pdu)); +#endif + + assert(pdu->pdu_connection->conn_conf.isc_iser == 0); + pdu_set_data_segment_length(pdu, pdu->pdu_data_len); iov[0].iov_base = pdu->pdu_bhs; iov[0].iov_len = sizeof(*pdu->pdu_bhs); @@ -269,8 +287,6 @@ pdu_send(struct pdu *pdu) log_errx(1, "short write"); } -#endif /* !ICL_KERNEL_PROXY */ - void pdu_delete(struct pdu *pdu) {
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